January Weather in Union, Philippines

Last updated: August 27, 2025

In January, the average temperature in Union, Philippines is a warm 27°C (80°F), with minimums around 25°C (76°F) and maximums reaching 29°C (85°F). However, be prepared for some rain, as the area sees an average precipitation of 184 mm (7.2 in) over 16 days, resulting in a high average humidity of 85%.

January Temperature in Union

In January in Union, the average temperature is 27°C (80°F). The maximum can reach 29°C (85°F), while the minimum can be as low as 25°C (76°F). With such warm and pleasant weather, it's an ideal time for traveling and exploring everything that Union has to offer.

January Weather in Union: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Union, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Union, January typically has an average temperature of 27°C (80°F), with highs reaching up to 29°C (85°F) and lows dropping to around 25°C (76°F).

Data source: Temperature data for Union generated using information from the Copernicus Climate Change Service.

January Precipitation in Union

In Union in January, the precipitation amount is 184 mm (7.2 in) over a period of 16 days.

January Precipitation Trends in Union

The chart displays monthly precipitation patterns in Union, 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 Union, January typically receives around 184 mm (7.2 inches) of precipitation spread over approximately 16 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

January Humidity in Union

In Union in January, humidity is 85%. With an average temperature of 27°C (80°F), this humidity feels like a warm blanket wrapped around you, making travel feel sticky and heavy, but also inviting you to seek out refreshing drinks and cool shade.

January Average Humidity in Union

This chart illustrates the average monthly humidity levels in Union, 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 Union is approximately 85%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Union

In Union in January, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Union.

Maximum UV Index Levels in Union for January

The chart shows the monthly maximum UV Index (UVI) for Union 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 Union typically reaches 12, which falls under the extreme exposure category.

Data source: Union 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 Union Compares to Other Months

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

This table compares monthly weather conditions in Union, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	27°C (80°F)	184 mm (7.2 inches)	85%	extreme
February Weather	26°C (80°F)	94 mm (3.7 inches)	80%	extreme
March Weather	27°C (81°F)	70 mm (2.8 inches)	77%	extreme
April Weather	27°C (82°F)	56 mm (2.2 inches)	78%	extreme
May Weather	28°C (83°F)	114 mm (4.5 inches)	84%	extreme
June Weather	28°C (83°F)	250 mm (9.8 inches)	87%	extreme
July Weather	28°C (82°F)	248 mm (9.8 inches)	88%	extreme
August Weather	28°C (83°F)	190 mm (7.5 inches)	89%	extreme
September Weather	28°C (82°F)	222 mm (8.7 inches)	90%	extreme
October Weather	28°C (82°F)	262 mm (10.3 inches)	87%	extreme
November Weather	28°C (82°F)	176 mm (6.9 inches)	90%	extreme
December Weather	27°C (81°F)	276 mm (10.9 inches)	91%	extreme