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Monthly climate in La Union, Philippines

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification La Union features a tropical rainforest climate (Af). Temperatures typically range between 26 °C (80 °F) and 27 °C (82 °F) through the year, but rarely can drop to 24 °C (76 °F) or can rise to as high as 30 °C (86 °F). The average annual precipitation amounts to about 2032 mm (80.0 inches) and receives 263 rainy days on the 1 mm (0.04 inches) threshold annually. La Union enjoys an average of 3311 hours of sunshine throughout the year, and daylight varies from 11 hours 44 minutes to 12 hours 29 minutes per day.

Monthly average temperatures in La Union, Philippines

The warmest months in La Union are July, September and October, with daily mean temperatures ranging from 27 to 27 °C (81 - 82 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from 26 to 26 °C (80 - 80 °F) throughout the day. On average each year, La Union experiences 329 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in La Union. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum28°C
(83°F)		28°C
(83°F)		28°C
(84°F)		29°C
(85°F)		29°C
(85°F)		29°C
(85°F)		29°C
(85°F)		29°C
(84°F)		29°C
(85°F)		30°C
(86°F)		29°C
(85°F)		29°C
(85°F)
Mean maximum28°C
(82°F)		28°C
(82°F)		28°C
(83°F)		29°C
(84°F)		29°C
(84°F)		29°C
(84°F)		29°C
(84°F)		29°C
(84°F)		29°C
(84°F)		29°C
(85°F)		29°C
(84°F)		29°C
(84°F)
Average high27°C
(81°F)		27°C
(81°F)		27°C
(81°F)		28°C
(82°F)		28°C
(83°F)		28°C
(83°F)		28°C
(83°F)		28°C
(82°F)		28°C
(83°F)		28°C
(83°F)		28°C
(82°F)		28°C
(82°F)
Daily mean26°C
(80°F)		26°C
(80°F)		26°C
(80°F)		27°C
(81°F)		27°C
(81°F)		27°C
(81°F)		27°C
(81°F)		27°C
(81°F)		27°C
(81°F)		27°C
(82°F)		27°C
(81°F)		27°C
(81°F)
Average low26°C
(79°F)		26°C
(78°F)		26°C
(79°F)		26°C
(79°F)		26°C
(80°F)		26°C
(80°F)		26°C
(80°F)		26°C
(80°F)		26°C
(80°F)		26°C
(80°F)		26°C
(80°F)		26°C
(80°F)
Mean minimum25°C
(77°F)		25°C
(77°F)		25°C
(77°F)		25°C
(78°F)		25°C
(78°F)		25°C
(78°F)		25°C
(78°F)		25°C
(78°F)		25°C
(78°F)		25°C
(78°F)		25°C
(78°F)		25°C
(78°F)
Minimum25°C
(77°F)		24°C
(76°F)		24°C
(76°F)		25°C
(77°F)		25°C
(77°F)		25°C
(77°F)		25°C
(77°F)		25°C
(77°F)		25°C
(78°F)		25°C
(77°F)		25°C
(78°F)		25°C
(78°F)

Compare climate in La Union with other places

Compare temperature, precipitation, sunshine, UV index in La Union, Philippines with other places around the world.

Monthly average precipitation in La Union, Philippines

La Union usually has the most precipitation in January, May and June, with an average of 24 rainy days and 223 mm (8.8 inches) of precipitation per month. The driest months in La Union are February, April and September. On average, 127 mm (5.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in La Union. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)251 (9.9)141 (5.5)192 (7.6)112 (4.4)223 (8.8)194 (7.6)170 (6.7)144 (5.7)129 (5.1)149 (5.9)172 (6.8)155 (6.1)
Average precipitation days (≥ 1 mm)221923212626212118202323

Monthly sunshine hours in La Union, Philippines

The sunniest months in La Union are March, April and May, when the sun shines an average of 9 hours 40 minutes a day. Least sunny months in La Union: January, February and November receive an average of 8 hours 22 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in La Union. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours216269298298292278277292274272267271
Mean daily daylight hours11h 46m11h 53m12h 4m12h 15m12h 24m12h 29m12h 26m12h 18m12h 8m11h 57m11h 48m11h 44m

Solar UV radiation in La Union, Philippines

La Union experiences the highest level of ultraviolet (UV) radiation in March, April and September, when the maximum UV index can reach values of 15 - 16, which corresponds to the Extreme category of sun exposure. January, July and December are in the Extreme exposure category. In these months, the maximum values of the UV index do not exceed 13. For more detailed information, check out our hourly La Union UV Index data.

Average daily maximum UV levels by month for La Union. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)131516161514131415141311