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December Weather in San Julian, Philippines

Last updated: August 27, 2025

In December, the average temperature in San Julian, Philippines hovers around 27°C (80°F), with a comfortable range where the minimum can drop to 23°C (74°F) and the maximum peaks at 30°C (87°F). Expect a significant precipitation amount of 443 mm (17.4 in) over the course of the month, coupled with an average humidity of 86%, making for a typically tropical climate.

December Temperature in San Julian

In December in San Julian, the average temperature is 27°C (80°F). Maximums can reach 30°C (87°F), and minimums can be as low as 23°C (74°F). This weather makes it an ideal time for travelers seeking warm and enjoyable conditions.

December Weather in San Julian: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in San Julian, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Julian, December typically has an average temperature of 27°C (80°F), with highs reaching up to 30°C (87°F) and lows dropping to around 23°C (74°F).
JanFebMarAprMayJunJulAugSepOctNovDec797980818383838383828180
Data source: Temperature data for San Julian 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.

December Precipitation in San Julian

In San Julian in December, the precipitation amount is 443 mm (17.4 in) over a span of 30 days.

December Precipitation Trends in San Julian

The chart displays monthly precipitation patterns in San Julian, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In San Julian, December typically receives around 443 mm (17.4 inches) of precipitation spread over approximately 30 days.
JanFebMarAprMayJunJulAugSepOctNovDec320230163154168226278205205275285443
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in San Julian

In San Julian in December, humidity is 86%. With an average temperature of 27°C (80°F), this humidity feels like a warm, sticky blanket enveloping you, making travel feel heavy and exhausting as you navigate the sultry air.

December Average Humidity in San Julian

This chart illustrates the average monthly humidity levels in San Julian, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in San Julian is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%85%87%87%82%79%80%80%83%79%82%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in San Julian

In San Julian in December, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in San Julian.

Maximum UV Index Levels in San Julian for December

The chart shows the monthly maximum UV Index (UVI) for San Julian in December, 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 December, the maximum UV index in San Julian typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec121316161414141414141211
Data source: San Julian December 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 December Weather in San Julian Compares to Other Months

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

This table compares monthly weather conditions in San Julian, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (80°F)320 mm (12.6 inches)86%extreme
February Weather26°C (79°F)230 mm (9.1 inches)85%extreme
March Weather27°C (80°F)163 mm (6.4 inches)87%extreme
April Weather27°C (81°F)154 mm (6.1 inches)87%extreme
May Weather28°C (83°F)168 mm (6.6 inches)82%extreme
June Weather28°C (83°F)226 mm (8.9 inches)79%extreme
July Weather28°C (83°F)278 mm (11.0 inches)80%extreme
August Weather28°C (83°F)205 mm (8.1 inches)80%extreme
September Weather28°C (83°F)205 mm (8.1 inches)83%extreme
October Weather28°C (82°F)274 mm (10.8 inches)79%extreme
November Weather27°C (81°F)285 mm (11.2 inches)82%extreme
December Weather27°C (80°F)443 mm (17.4 inches)86%extreme

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