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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 27°C (81°F), with minimums dipping to 22°C (73°F) and maximums soaring to 34°C (93°F). This month also sees a generous precipitation of 203 mm (8.0 in) spread over 20 days, contributing to an average humidity of 88%.

January Temperature in San Isidro

In January in San Isidro, the average temperature is 27°C (81°F). Maximum temperatures can reach 34°C (93°F), while minimums can drop to as low as 22°C (73°F). This pleasant climate makes San Isidro an ideal destination for outdoor activities and leisurely exploration.

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 27°C (81°F), with highs reaching up to 34°C (93°F) and lows dropping to around 22°C (73°F).
JanFebMarAprMayJunJulAugSepOctNovDec818183848584838483838282
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 203 mm (8.0 in) spread over 20 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 203 mm (8.0 inches) of precipitation spread over approximately 20 days.
JanFebMarAprMayJunJulAugSepOctNovDec20313313174228246277221239254219278
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 88%. With an average temperature of 27°C (81°F), this humidity feels like a warm, thick blanket wrapping around you as you travel, making every step feel more laborious and requiring frequent breaks to cool down and hydrate.

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 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%86%84%82%83%85%86%87%89%85%87%91%
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 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For 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 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec131416171413131415141211
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 Weather27°C (81°F)203 mm (8.0 inches)88%extreme
February Weather27°C (81°F)133 mm (5.2 inches)86%extreme
March Weather28°C (83°F)131 mm (5.2 inches)84%extreme
April Weather29°C (85°F)74 mm (2.9 inches)82%extreme
May Weather30°C (85°F)228 mm (9.0 inches)83%extreme
June Weather29°C (84°F)246 mm (9.7 inches)85%extreme
July Weather28°C (84°F)277 mm (10.9 inches)86%extreme
August Weather29°C (84°F)221 mm (8.7 inches)87%extreme
September Weather29°C (84°F)239 mm (9.4 inches)89%extreme
October Weather28°C (83°F)254 mm (10.0 inches)85%extreme
November Weather28°C (83°F)219 mm (8.6 inches)87%extreme
December Weather28°C (82°F)277 mm (10.9 inches)91%extreme

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