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January Weather in San Isidro, Philippines

Last updated: August 27, 2025

In January, the average temperature in San Isidro, Philippines hovers around 25°C (78°F), offering a pleasant climate. Expect a minimum of 19°C (67°F) and a maximum of 31°C (88°F) during this time. While the humidity is relatively high at 77%, you’ll also encounter an average precipitation amount of 48 mm (1.9 in) over approximately 5 days.

January Temperature in San Isidro

In January, in San Isidro, the average temperature is 25°C (78°F). Maximums can reach 31°C (88°F), while minimums can dip to as low as 19°C (67°F). Overall, it's a great time to explore San Isidro with its pleasant temperatures.

January Weather in San Isidro: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in San Isidro, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Isidro, January typically has an average temperature of 25°C (78°F), with highs reaching up to 31°C (88°F) and lows dropping to around 19°C (67°F).
JanFebMarAprMayJunJulAugSepOctNovDec787880818282818080818179
Data source: Temperature data for San Isidro generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in San Isidro

In San Isidro in January, the precipitation amount is 48 mm (1.9 in) spread over the course of 5 days.

January Precipitation Trends in San Isidro

The chart displays monthly precipitation patterns in San Isidro, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In San Isidro, January typically receives around 48 mm (1.9 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec4826204216139859261037925011548
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in San Isidro

In San Isidro in January humidity is 77%. With an average temperature of 25°C (78°F), this humidity feels like a warm, sticky embrace that can quickly sap your energy, making outdoor activities more challenging and requiring frequent breaks to stay hydrated and cool.

January Average Humidity in San Isidro

This chart illustrates the average monthly humidity levels in San Isidro, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in San Isidro is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec77%73%71%73%77%85%86%87%87%86%89%85%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in San Isidro

In San Isidro in January, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in San Isidro.

Maximum UV Index Levels in San Isidro for January

The chart shows the monthly maximum UV Index (UVI) for San Isidro in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In January, the maximum UV index in San Isidro typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec10121414131314141413109
Data source: San Isidro January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How January Weather in San Isidro Compares to Other Months

Weather in San Isidro varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in San Isidro, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in San Isidro, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather25°C (78°F)48 mm (1.9 inches)77%very high
February Weather25°C (78°F)26 mm (1.0 inches)73%extreme
March Weather26°C (80°F)20 mm (0.8 inches)71%extreme
April Weather27°C (81°F)41 mm (1.6 inches)73%extreme
May Weather28°C (82°F)161 mm (6.3 inches)77%extreme
June Weather28°C (82°F)398 mm (15.7 inches)85%extreme
July Weather27°C (81°F)592 mm (23.3 inches)86%extreme
August Weather27°C (80°F)610 mm (24.0 inches)87%extreme
September Weather27°C (81°F)378 mm (14.9 inches)87%extreme
October Weather27°C (81°F)250 mm (9.8 inches)86%extreme
November Weather27°C (81°F)115 mm (4.5 inches)89%very high
December Weather26°C (79°F)48 mm (1.9 inches)85%very high

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