San Juan Climate & Monthly Temperature Overview – Philippines

Temperature and Precipitation

San Juan, Philippines, enjoys a tropical climate, characterized by warm temperatures and abundant rainfall throughout the year. The average annual temperature hovers around 27°C (81°F), with little variation between seasons. However, from March to May, during the hottest months, temperatures can occasionally reach up to 37°C (99°F). The annual rainfall is significant, averaging around 2,400 mm (94 inches), with two distinct seasons: a relatively dry season from October to April and a rainy season from May to September. During the rainy season, heavy downpours are common, particularly during the monsoon season from June to September.

Seasonal Variations

During the dry season, from October to April, the weather in San Juan is predominantly sunny and dry. The daytime temperatures range between 25°C (77°F) and 32°C (90°F), while nighttime temperatures typically drop to around 22°C (72°F). The humidity levels are generally lower during this period, creating a more comfortable climate. In contrast, the rainy season from May to September brings frequent showers and thunderstorms. The precipitation is often heavy, leading to flooding in some areas. The temperatures remain relatively warm throughout the season, averaging around 27°C (81°F) with occasional spikes during the peak of the monsoon.

Average Maximum Temperature

The average maximum temperature in San Juan, Philippines, varies slightly throughout the year. In the warmest months, April and May, the average maximum temperature reaches 33°C (91°F). During the coolest months, December and January, the average maximum temperature drops to around 30°C (86°F).

Average Minimum Temperature

Unlike the maximum temperature, the average minimum temperature in San Juan, Philippines, remains relatively consistent throughout the year. It typically hovers around 24°C (75°F), with only slight variations of one or two degrees depending on the month. This consistent minimum temperature contributes to the overall tropical climate of the region.

Cloud Cover and Precipitation

San Juan, Philippines experiences a range of cloud cover and precipitation patterns throughout the year. During the dry season, which typically lasts from November to April, cloud cover is generally low, resulting in sunny and warm conditions. However, during the wet season, which spans from May to October, cloud cover increases significantly, leading to frequent rainfall and thunderstorms. The city receives an average of 2,000 millimeters of precipitation annually, with the heaviest rainfall occurring during the months of July and August.

Types of Clouds

San Juan’s cloud cover consists of a variety of cloud types, including cirrus, cumulus, and stratus clouds. Cirrus clouds are thin and wispy, and are often seen on clear days. Cumulus clouds are puffy and have a rounded appearance, and can indicate fair weather or the potential for showers. Stratus clouds are flat and gray, and often cover the entire sky, resulting in overcast conditions. In addition to these common cloud types, San Juan may also experience altostratus and cirrostratus clouds, which are variations of stratus and cirrus clouds, respectively.

Precipitation Patterns

San Juan, Philippines, experiences a tropical climate with distinct wet and dry seasons. During the wet season, which typically spans from May to October, rainfall is abundant, with average monthly precipitation exceeding 150 mm. The peak of the wet season occurs in July and August, with rainfall often exceeding 250 mm per month. Conversely, the dry season extends from November to April, with significantly less precipitation. Monthly rainfall during this period averages around 50 mm, with February typically being the driest month.

Influences on Precipitation

The precipitation patterns in San Juan are primarily influenced by the northeast monsoon, which brings moist air from the Pacific Ocean during the wet season. As this air ascends the mountains surrounding the city, it cools and condenses, resulting in heavy rainfall. In contrast, during the dry season, the southwest monsoon brings drier air, leading to diminished precipitation. Additionally, the city’s proximity to the ocean and its location on the eastern side of the Philippine archipelago contribute to its relatively high rainfall compared to other parts of the country.

Rainfall Patterns

San Juan, a municipality in the province of La Union in the Philippines, experiences a tropical monsoon climate characterized by distinct wet and dry seasons. The wet season typically lasts from May to October, while the dry season spans from November to April. During the wet season, the municipality receives heavy rainfall, with an average annual rainfall of 2,000 millimeters. The wettest month is August, with an average rainfall of over 400 millimeters. Conversely, the dry season is relatively dry, with an average monthly rainfall of less than 100 millimeters. The driest month is March, with an average rainfall of around 40 millimeters.

Seasonal Variability

The variability of rainfall in San Juan, Philippines is significantly influenced by the El Niño-Southern Oscillation (ENSO) phenomenon. During El Niño years, the municipality experiences reduced rainfall, leading to droughts and water shortages. In contrast, during La Niña years, rainfall is typically above average, increasing the risk of floods and landslides. Additionally, the location of San Juan in the western part of the country makes it vulnerable to the southwest monsoon, which brings heavy rainfall from May to September. The monsoon season is crucial for agriculture, providing water for crops and sustaining the local economy.

Historical Records of Snowfall in San Juan, Philippines

San Juan, Philippines, located in the northern part of Luzon Island, has no documented historical records of snowfall. The Philippines lies within the tropics, where warm ocean currents and proximity to the equator maintain relatively high temperatures year-round. Atmospheric conditions and geographic factors, such as altitude, typically prevent snowfall from occurring in San Juan or any other lowland area of the country.

Geographic and Climatic Factors Preventing Snowfall

San Juan is situated in a coastal area at an elevation of only 19 meters above sea level. The city’s low elevation and proximity to the ocean moderate its temperature, making it unlikely for cold air masses to penetrate and bring about snowfall. Additionally, the Philippines experiences a tropical monsoon climate characterized by heavy rainfall and high humidity. These conditions further contribute to the absence of snowfall in San Juan.

Sunrise and Sunset in San Juan, Philippines

San Juan, located in the Manila metropolitan area of the Philippines, experiences tropical weather conditions characterized by consistent sunshine throughout the year. The sunrise and sunset times in San Juan vary slightly depending on the time of year due to the Earth’s elliptical orbit around the sun. Generally, the sun rises between 5:30 AM and 6:00 AM and sets between 5:30 PM and 6:00 PM local time. The city enjoys long daylight hours, with an average of 12 hours of sunlight per day.

Impact of Sunrise and Sunset on San Juan’s Lifestyle

The consistent sunshine in San Juan has a significant impact on the lifestyle and daily routines of its residents. The early sunrise allows for an early start to the day, with many people engaging in outdoor activities such as jogging, cycling, and walking in the parks and along the coast. The abundance of sunlight also promotes tourism, with visitors enjoying the beautiful beaches and the outdoors. Furthermore, the long daylight hours provide ample time for residents to engage in various leisure and recreational activities before the sun sets.

Appearance and Timing of the Moon in San Juan, Philippines

The moon’s appearance in San Juan, Philippines, varies throughout the month. During full moons, it appears as a bright, circular orb in the night sky. As the moon waxes and wanes, its shape changes gradually, becoming a half-moon, a crescent, and finally invisible during new moons. The moon’s position in the sky is influenced by its phase. During new moons, it is located near the sun and therefore not visible. As the moon progresses through its phases, it gradually moves away from the sun, rising and setting later each day.

Effect on Tides

The moon’s gravitational pull has a significant impact on the tides in San Juan and the surrounding area. As the moon orbits the Earth, its gravity exerts a force on the oceans, causing them to bulge slightly on the side facing the moon. This tidal bulge creates high tides. Simultaneously, another tidal bulge forms on the opposite side of the Earth, also resulting in high tides. As the Earth rotates, the tidal bulges move across the globe, creating alternating cycles of high and low tides. In San Juan, the tidal range, the difference between high and low tides, is relatively modest compared to other coastal areas. However, it is noticeable during spring tides, which occur when the moon is aligned with the sun and exerts a stronger gravitational pull on the Earth’s oceans.

Overview of Humidity in San Juan, Philippines

San Juan, Philippines experiences a tropical climate characterized by high humidity throughout the year. The annual average relative humidity ranges from 75% to 85%. The highest humidity levels occur during the wet season, which runs from June to October. During this period, it’s not uncommon for humidity to exceed 90% on a daily basis. The humidity levels are slightly lower during the dry season, which lasts from November to May, but they still remain high, typically ranging from 65% to 80%.

Effects of High Humidity

The high humidity in San Juan can have various effects on the local population and environment. Firstly, it can lead to discomfort and increased perspiration, especially during hot and sunny days. High humidity can also contribute to respiratory problems for individuals with allergies or asthma. Furthermore, it can damage buildings and infrastructure, particularly those made of wood or metal, by promoting rust and decay. In addition, it can affect agricultural yields by reducing pollination and increasing the risk of plant diseases. To mitigate the effects of high humidity, air conditioning and ventilation systems are commonly used in buildings and homes.

Wind Speed and Direction

San Juan, Philippines experiences a tropical monsoon climate, characterized by ample rainfall and consistent winds. The wind patterns in the region are influenced by the seasonal shifts of the monsoon winds. During the northeast monsoon, from November to March, San Juan experiences winds blowing from the northeast direction. These winds are generally moderate in speed, with an average of 10-20 kilometers per hour (6-12 miles per hour).

In contrast, during the southwest monsoon, from May to September, the winds shift direction and blow from the southwest. These winds tend to be stronger than those during the northeast monsoon, with average speeds ranging from 15-30 kilometers per hour (9-18 miles per hour). The southwest monsoon is also associated with frequent thunderstorms and heavy rainfall, which can sometimes lead to strong gusts of wind.

When to Visit San Juan, Philippines: Peak Season

San Juan, Philippines, welcomes visitors throughout the year, but the best time to visit is during the peak season, which runs from January to May. During this time, the weather is at its sunniest and driest, with minimal rainfall and an average temperature of around 26 degrees Celsius. The summer months are ideal for beach activities, swimming, and exploring the island’s stunning coastal scenery. This is also the period for religious festivals and cultural events, such as the San Juan Fiesta in May, which celebrates the town’s patron saint and features vibrant parades and traditional dances.

When to Visit San Juan, Philippines: Off-Season

The off-season in San Juan, Philippines, spans from June to December, coinciding with the rainy season. However, do not let this deter your trip, as the island still offers plenty ofの魅力 during this time. The rain is mostly intermittent showers, and they often provide a refreshing respite from the heat. Off-season travel offers several advantages, such as lower accommodation rates, fewer crowds, and a more relaxed atmosphere. Additionally, the lush vegetation and waterfalls are at their peak during the rainy season, providing opportunities for scenic hikes and exploration of the island’s natural beauty.

Potential and Feasibility
San Juan, Philippines, holds significant potential for solar energy development due to its abundant sunlight. The city receives an average of 5.5 kWh/m²/day of solar irradiation, which is higher than the global average. This makes it a favorable location for solar photovoltaic (PV) systems, which convert sunlight directly into electricity. The feasibility of solar energy in San Juan is enhanced by its relatively low installation and maintenance costs, which have been declining in recent years.

Challenges and Opportunities
Despite its potential, solar energy in San Juan faces certain challenges. One challenge is the intermittent nature of solar power, which can fluctuate depending on weather conditions. To address this, the city is exploring energy storage technologies, such as batteries, to ensure a reliable supply of electricity. Another challenge is the need for significant investment in infrastructure, including solar panels, inverters, and transmission lines. However, these challenges also present opportunities for economic growth and job creation. By investing in solar energy, San Juan can reduce its reliance on imported fossil fuels, create new industries, and contribute to the country’s renewable energy goals.

General Topography

San Juan, Philippines exhibits a relatively flat topography, with elevations ranging from sea level along the coastal areas to moderately rolling hills in the city’s interior. The city is bounded by the Pasig River to the west and north, the San Juan River to the east, and the Marikina River to the northeast. These rivers have shaped the landscape of San Juan, creating a network of waterways and fertile floodplains.

Hills and Valleys

Despite its overall flatness, San Juan contains several notable hills and valleys. The highest point in the city is Mount Carmel, which rises to an elevation of 152 meters above sea level. Other prominent hills include Greenhills, Mandaluyong, and Fairview. The city also features several valleys, including the San Juan Valley and the Greenhills Valley. These valleys provide scenic views and are popular recreational areas for residents and visitors alike.

San Juan Airport (SJI)

San Juan Airport (SJI), also known as Siquijor Airport, is the nearest airport serving the municipality of San Juan in the province of Siquijor, Philippines. Located approximately 5 kilometers from the town center, the airport serves as the main gateway to the island of Siquijor. SJI operates regular flights to and from Manila, the capital city of the Philippines. The airport is equipped with basic passenger facilities, including a small terminal building, check-in counters, and a baggage claim area.

Getting to San Juan from the Airport

Upon arrival at San Juan Airport, travelers have several options for transportation to the town center and other destinations on Siquijor Island. Taxis and tricycles (motorized rickshaws) are readily available outside the airport terminal, offering convenient transportation to nearby locations. For those seeking a more economical option, jeepneys (public minibuses) provide regular service between the airport and San Juan town center. Additionally, private car rentals and shuttle services can be arranged through local operators, offering a more comfortable and flexible mode of transportation.

History of San Juan, Philippines

San Juan is a municipality in the province of La Union, Philippines. It is situated on the southern coast of the province and is bounded by the city of San Fernando to the north, the municipality of Bauang to the east, the municipality of Caba to the south, and the Lingayen Gulf to the west. The town was founded in 1572 by Spanish missionaries and was named after Saint John the Baptist. During the Spanish colonial period, San Juan was a major trading center and was known for its production of tobacco and rice.

Culture and Traditions of San Juan, Philippines

The people of San Juan are predominantly Roman Catholic and their culture is heavily influenced by Spanish traditions. The town’s most famous festival is the annual Pista ng San Juan Bautista, which is held in honor of the town’s patron saint. The festival features a variety of religious and cultural events, including processions, street dancing, and fireworks. The town is also home to a number of historical landmarks, including the San Juan Bautista Church, which was built in 1614 and is one of the oldest churches in the province.