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Monthly climate in Sison, Ilocos, Philippines

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Sison features a tropical monsoon climate (Am).Temperatures typically range between 25 °C (78 °F) and 28 °C (83 °F) through the year, but rarely can drop to 19 °C (66 °F) or can rise to as high as 34 °C (93 °F).The average annual precipitation amounts to about 2711 mm (106.7 inches) and receives 244 rainy days on the 1 mm (0.04 inches) threshold annually.Sison enjoys an average of 3284 hours of sunshine throughout the year, and daylight varies from 11 hours 9 minutes to 13 hours 4 minutes per day.

Monthly average temperatures in Sison, Ilocos, Philippines §

The warmest months in Sison are April, May and June, with daily mean temperatures ranging from 27 to 28 °C (81 - 83 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 25 to 26 °C (78 - 79 °F) throughout the day. On average each year, Sison 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 Sison, Ilocos, Philippines.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 31°C
(87°F)		 30°C
(87°F)		 32°C
(91°F)		 34°C
(93°F)		 34°C
(93°F)		 33°C
(92°F)		 32°C
(90°F)		 32°C
(90°F)		 32°C
(91°F)		 32°C
(89°F)		 32°C
(90°F)		 31°C
(87°F)
Mean maximum 30°C
(86°F)		 30°C
(87°F)		 32°C
(89°F)		 32°C
(90°F)		 33°C
(92°F)		 32°C
(90°F)		 32°C
(89°F)		 31°C
(88°F)		 31°C
(88°F)		 31°C
(88°F)		 31°C
(89°F)		 30°C
(87°F)
Average high 28°C
(83°F)		 28°C
(83°F)		 30°C
(86°F)		 30°C
(87°F)		 31°C
(88°F)		 30°C
(87°F)		 29°C
(85°F)		 29°C
(84°F)		 29°C
(85°F)		 29°C
(85°F)		 29°C
(85°F)		 29°C
(84°F)
Daily mean 25°C
(78°F)		 25°C
(78°F)		 26°C
(80°F)		 27°C
(81°F)		 28°C
(83°F)		 28°C
(82°F)		 27°C
(80°F)		 27°C
(80°F)		 27°C
(80°F)		 27°C
(81°F)		 27°C
(80°F)		 26°C
(79°F)
Average low 23°C
(73°F)		 22°C
(73°F)		 24°C
(75°F)		 25°C
(77°F)		 25°C
(78°F)		 25°C
(78°F)		 25°C
(77°F)		 25°C
(77°F)		 25°C
(77°F)		 25°C
(77°F)		 24°C
(76°F)		 24°C
(75°F)
Mean minimum 20°C
(69°F)		 20°C
(68°F)		 21°C
(71°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)		 23°C
(74°F)		 23°C
(74°F)		 22°C
(72°F)
Minimum 19°C
(66°F)		 19°C
(66°F)		 21°C
(69°F)		 22°C
(71°F)		 24°C
(75°F)		 24°C
(75°F)		 23°C
(74°F)		 23°C
(75°F)		 23°C
(75°F)		 21°C
(71°F)		 22°C
(72°F)		 21°C
(71°F)

Compare climate in Sison with other places

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

Monthly average precipitation in Sison, Ilocos, Philippines §

Sison usually has the most precipitation in July, August and September, with an average of 29 rainy days and 480 mm (18.9 inches) of precipitation per month.The driest months in Sison are January, February and March. On average, 52 mm (2.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Sison, Ilocos, Philippines.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 66 (2.6) 48 (1.9) 44 (1.7) 74 (2.9) 167 (6.6) 266 (10.5) 524 (20.6) 546 (21.5) 371 (14.6) 344 (13.5) 151 (5.9) 111 (4.4)
Average precipitation days (≥ 1 mm) 11 8 11 16 22 27 30 29 28 26 19 17

Monthly sunshine hours in Sison, Ilocos, Philippines §

The sunniest months in Sison are March, April and May, when the sun shines an average of 10 hours 8 minutes a day.Least sunny months in Sison: January, July and August receive an average of 7 hours 48 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Sison, Ilocos, Philippines.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 238 274 313 310 309 278 250 235 253 270 267 281
Mean daily daylight hours 11h 15m 11h 35m 12h 2m 12h 29m 12h 52m 13h 4m 12h 58m 12h 38m 12h 12m 11h 44m 11h 21m 11h 9m

Solar UV radiation in Sison, Ilocos, Philippines §

Sison experiences the highest level of ultraviolet (UV) radiation in April, August and September, when the maximum UV index can reach values of 14 - 15, which corresponds to the Extreme category of sun exposure.January, November and December are in the Very High / Extreme exposure category. In these months, the maximum values of the UV index do not exceed 11. For more detailed information, check out our hourly Sison UV Index data.

Average daily maximum UV levels by month for Sison, Ilocos, Philippines.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 11 13 14 14 13 14 14 15 14 13 11 10