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Monthly climate in Sion, San Martín, Peru

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Sion features a tropical rainforest climate (Af).Temperatures typically range between 22 °C (72 °F) and 24 °C (76 °F) through the year, but rarely can drop to 13 °C (56 °F) or can rise to as high as 35 °C (96 °F).The average annual precipitation amounts to about 2224 mm (87.6 inches) and receives 246 rainy days on the 1 mm (0.04 inches) threshold annually.Sion enjoys an average of 3390 hours of sunshine throughout the year, and daylight varies from 11 hours 40 minutes to 12 hours 32 minutes per day.

Monthly average temperatures in Sion, San Martín, Peru §

The warmest months in Sion are September, October and November, with daily mean temperatures ranging from 24 to 24 °C (75 - 76 °F) throughout the day. The coldest temperatures usually occur in May, June and July, when daily mean temperatures range from 22 to 23 °C (72 - 73 °F) throughout the day. On average each year, Sion experiences 304 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 Sion, San Martín, Peru.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 33°C
(92°F)		 32°C
(90°F)		 33°C
(91°F)		 32°C
(89°F)		 32°C
(90°F)		 32°C
(90°F)		 31°C
(88°F)		 34°C
(94°F)		 35°C
(95°F)		 35°C
(96°F)		 34°C
(93°F)		 32°C
(90°F)
Mean maximum 32°C
(89°F)		 31°C
(89°F)		 32°C
(90°F)		 31°C
(88°F)		 31°C
(88°F)		 30°C
(87°F)		 31°C
(87°F)		 33°C
(92°F)		 34°C
(93°F)		 34°C
(93°F)		 32°C
(90°F)		 31°C
(89°F)
Average high 28°C
(82°F)		 28°C
(83°F)		 28°C
(83°F)		 28°C
(84°F)		 28°C
(84°F)		 28°C
(83°F)		 28°C
(83°F)		 30°C
(85°F)		 31°C
(88°F)		 30°C
(86°F)		 29°C
(84°F)		 28°C
(83°F)
Daily mean 23°C
(74°F)		 23°C
(74°F)		 23°C
(73°F)		 23°C
(74°F)		 23°C
(73°F)		 23°C
(73°F)		 22°C
(72°F)		 23°C
(74°F)		 24°C
(76°F)		 24°C
(76°F)		 24°C
(75°F)		 23°C
(74°F)
Average low 19°C
(67°F)		 20°C
(68°F)		 19°C
(67°F)		 19°C
(67°F)		 19°C
(66°F)		 18°C
(65°F)		 17°C
(64°F)		 18°C
(64°F)		 19°C
(66°F)		 19°C
(67°F)		 20°C
(67°F)		 20°C
(68°F)
Mean minimum 18°C
(64°F)		 18°C
(65°F)		 18°C
(64°F)		 17°C
(63°F)		 16°C
(62°F)		 16°C
(62°F)		 15°C
(59°F)		 15°C
(59°F)		 17°C
(62°F)		 17°C
(64°F)		 18°C
(65°F)		 18°C
(65°F)
Minimum 17°C
(63°F)		 17°C
(64°F)		 16°C
(62°F)		 15°C
(60°F)		 16°C
(61°F)		 15°C
(59°F)		 14°C
(57°F)		 13°C
(56°F)		 16°C
(61°F)		 16°C
(61°F)		 18°C
(64°F)		 17°C
(63°F)

Compare climate in Sion with other places

Compare temperature, precipitation, sunshine, UV index in Sion, San Martín, Peru with other places around the world.

Monthly average precipitation in Sion, San Martín, Peru §

Sion usually has the most precipitation in January, March and December, with an average of 26 rainy days and 292 mm (11.5 inches) of precipitation per month.The driest months in Sion are July, August and September. On average, 59 mm (2.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Sion, San Martín, Peru.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) 284 (11.2) 246 (9.7) 296 (11.7) 202 (7.9) 186 (7.3) 112 (4.4) 74 (2.9) 56 (2.2) 48 (1.9) 170 (6.7) 254 (10.0) 296 (11.7)
Average precipitation days (≥ 1 mm) 23 25 28 24 24 15 10 9 12 21 26 29

Monthly sunshine hours in Sion, San Martín, Peru §

The sunniest months in Sion are May, July and August, when the sun shines an average of 10 hours 12 minutes a day.Least sunny months in Sion: January, February and March receive an average of 7 hours 53 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Sion, San Martín, Peru.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 213 252 252 270 308 293 320 321 304 295 261 297
Mean daily daylight hours 12h 29m 12h 19m 12h 7m 11h 54m 11h 44m 11h 40m 11h 42m 11h 51m 12h 3m 12h 15m 12h 27m 12h 32m

Solar UV radiation in Sion, San Martín, Peru §

Sion experiences the highest level of ultraviolet (UV) radiation in January, March and April, when the maximum UV index can reach values of 16 - 17, which corresponds to the Extreme category of sun exposure.June, July and August are in the Extreme exposure category. In these months, the maximum values of the UV index do not exceed 12. For more detailed information, check out our hourly Sion UV Index data.

Average daily maximum UV levels by month for Sion, San Martín, Peru.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) 16 16 17 16 14 12 12 12 14 15 15 15