nomadseason

January Weather in San Jose, Philippines

Last updated: August 27, 2025

In January, the average temperature in San Jose, Philippines hovers around 24°C (76°F), with daily variations ranging from a minimum of 19°C (66°F) to a warm maximum of 33°C (92°F). However, be prepared for some rain, as the region experiences an average precipitation of 159 mm (6.2 in) over 17 days. The atmosphere is quite humid too, with an average humidity level of 85%, adding to the tropical feel of the season.

January Temperature in San Jose

In January in San Jose, the average temperature is 24°C (76°F). Maximums can reach 33°C (92°F) and minimums can be as low as 19°C (66°F). This makes San Jose an ideal destination for travelers seeking pleasant, warm weather.

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

The chart illustrates January temperature patterns in San Jose, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Jose, January typically has an average temperature of 24°C (76°F), with highs reaching up to 33°C (92°F) and lows dropping to around 19°C (66°F).
JanFebMarAprMayJunJulAugSepOctNovDec767677797977767676777676
Data source: Temperature data for San Jose generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in San Jose

In San Jose in January, the precipitation amount is 159 mm (6.2 in) spread over 17 days.

January Precipitation Trends in San Jose

The chart displays monthly precipitation patterns in San Jose, 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 Jose, January typically receives around 159 mm (6.2 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec15914496120249285291212234325155172
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

January Humidity in San Jose

In San Jose in January humidity is 85%. With an average temperature of 24°C (76°F), this humidity feels like walking through a warm, thick blanket that envelops you, making every step slightly more laborious and prompting a constant desire for refreshing coolness while exploring.

January Average Humidity in San Jose

This chart illustrates the average monthly humidity levels in San Jose, 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 Jose is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%84%82%79%81%84%83%84%87%82%83%86%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in San Jose

In San Jose in January, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in San Jose, you can check here.

Maximum UV Index Levels in San Jose for January

The chart shows the monthly maximum UV Index (UVI) for San Jose 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 Jose typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141516171513141515141312
Data source: San Jose 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 Jose Compares to Other Months

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

This table compares monthly weather conditions in San Jose, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (76°F)159 mm (6.2 inches)85%extreme
February Weather25°C (76°F)144 mm (5.7 inches)84%extreme
March Weather25°C (78°F)96 mm (3.8 inches)82%extreme
April Weather26°C (79°F)120 mm (4.7 inches)79%extreme
May Weather26°C (79°F)249 mm (9.8 inches)81%extreme
June Weather25°C (78°F)285 mm (11.2 inches)84%extreme
July Weather24°C (76°F)291 mm (11.5 inches)83%extreme
August Weather25°C (77°F)212 mm (8.3 inches)84%extreme
September Weather25°C (77°F)234 mm (9.2 inches)87%extreme
October Weather25°C (77°F)325 mm (12.8 inches)82%extreme
November Weather25°C (77°F)155 mm (6.1 inches)83%extreme
December Weather25°C (76°F)172 mm (6.8 inches)86%extreme

Compare San Jose's Climate with Cities Worldwide