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Monthly climate in Siari, Philippines

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Siari features a tropical rainforest climate (Af). Temperatures typically range between 25 °C (78 °F) and 27 °C (80 °F) through the year, but rarely can drop to 22 °C (71 °F) or can rise to as high as 31 °C (87 °F). The average annual precipitation amounts to about 2461 mm (96.9 inches) and receives 276 rainy days on the 1 mm (0.04 inches) threshold annually. Siari enjoys an average of 3327 hours of sunshine throughout the year, and daylight varies from 11 hours 38 minutes to 12 hours 34 minutes per day.

Monthly average temperatures in Siari, Philippines

The warmest months in Siari are April, May and June, with daily mean temperatures ranging from 27 to 27 °C (80 - 80 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from 25 to 26 °C (78 - 79 °F) throughout the day. On average each year, Siari 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 Siari. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum29°C
(84°F)		28°C
(84°F)		29°C
(85°F)		30°C
(87°F)		30°C
(86°F)		31°C
(87°F)		31°C
(87°F)		30°C
(86°F)		30°C
(87°F)		30°C
(86°F)		30°C
(86°F)		29°C
(85°F)
Mean maximum28°C
(83°F)		28°C
(83°F)		29°C
(84°F)		29°C
(85°F)		30°C
(86°F)		29°C
(85°F)		30°C
(86°F)		30°C
(86°F)		30°C
(86°F)		30°C
(85°F)		29°C
(85°F)		29°C
(84°F)
Average high27°C
(81°F)		27°C
(81°F)		28°C
(82°F)		28°C
(83°F)		29°C
(84°F)		28°C
(84°F)		28°C
(83°F)		28°C
(83°F)		28°C
(83°F)		28°C
(83°F)		28°C
(83°F)		28°C
(82°F)
Daily mean25°C
(78°F)		25°C
(78°F)		26°C
(79°F)		27°C
(80°F)		27°C
(80°F)		27°C
(80°F)		26°C
(80°F)		26°C
(80°F)		26°C
(79°F)		26°C
(79°F)		26°C
(79°F)		26°C
(79°F)
Average low24°C
(75°F)		24°C
(75°F)		24°C
(75°F)		25°C
(77°F)		25°C
(77°F)		25°C
(77°F)		25°C
(77°F)		25°C
(77°F)		25°C
(76°F)		24°C
(76°F)		24°C
(76°F)		24°C
(76°F)
Mean minimum23°C
(74°F)		23°C
(73°F)		23°C
(74°F)		23°C
(74°F)		24°C
(75°F)		24°C
(76°F)		24°C
(75°F)		24°C
(75°F)		24°C
(75°F)		24°C
(75°F)		24°C
(75°F)		23°C
(74°F)
Minimum22°C
(73°F)		22°C
(71°F)		23°C
(73°F)		22°C
(73°F)		23°C
(74°F)		23°C
(74°F)		23°C
(74°F)		23°C
(74°F)		23°C
(74°F)		23°C
(74°F)		23°C
(74°F)		23°C
(73°F)

Compare climate in Siari with other places

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

Monthly average precipitation in Siari, Philippines

Siari usually has the most precipitation in July, September and October, with an average of 27 rainy days and 306 mm (12.0 inches) of precipitation per month. The driest months in Siari are February, March and April. On average, 90 mm (3.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Siari. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)141 (5.6)95 (3.7)91 (3.6)84 (3.3)273 (10.8)257 (10.1)284 (11.2)210 (8.3)320 (12.6)314 (12.3)206 (8.1)186 (7.3)
Average precipitation days (≥ 1 mm)171114172828272826292625

Monthly sunshine hours in Siari, Philippines

The sunniest months in Siari are March, April and May, when the sun shines an average of 9 hours 53 minutes a day. Least sunny months in Siari: January, September and October receive an average of 8 hours 13 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Siari. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours225270305300302274283284267263269278
Mean daily daylight hours11h 41m11h 51m12h 3m12h 17m12h 29m12h 34m12h 31m12h 21m12h 8m11h 55m11h 44m11h 38m

Solar UV radiation in Siari, Philippines

Siari 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. June, November 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 Siari UV Index data.

Average daily maximum UV levels by month for Siari. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)131416161413131415141211