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Monthly climate in Chalatenango, El Salvador

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Chalatenango features a tropical savanna climate (Aw). Temperatures typically range between 25 °C (78 °F) and 28 °C (83 °F) through the year, but rarely can drop to 13 °C (56 °F) or can rise to as high as 39 °C (103 °F). The average annual precipitation amounts to about 1134 mm (44.6 inches) and receives 147 rainy days on the 1 mm (0.04 inches) threshold annually. Chalatenango enjoys an average of 3590 hours of sunshine throughout the year, and daylight varies from 11 hours 17 minutes to 12 hours 55 minutes per day.

Monthly average temperatures in Chalatenango, El Salvador

The warmest months in Chalatenango are March, April and July, with daily mean temperatures ranging from 27 to 28 °C (81 - 83 °F) throughout the day. The coldest temperatures usually occur in January, November and December, when daily mean temperatures range from 25 to 25 °C (78 - 78 °F) throughout the day. On average each year, Chalatenango experiences 327 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 Chalatenango. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum36°C
(97°F)		39°C
(102°F)		39°C
(103°F)		39°C
(102°F)		38°C
(100°F)		36°C
(96°F)		38°C
(100°F)		37°C
(100°F)		36°C
(97°F)		35°C
(94°F)		35°C
(95°F)		36°C
(96°F)
Mean maximum35°C
(96°F)		37°C
(98°F)		38°C
(100°F)		38°C
(101°F)		37°C
(99°F)		34°C
(93°F)		36°C
(97°F)		36°C
(97°F)		34°C
(94°F)		33°C
(92°F)		33°C
(92°F)		35°C
(95°F)
Average high32°C
(90°F)		34°C
(94°F)		35°C
(95°F)		35°C
(95°F)		33°C
(92°F)		31°C
(88°F)		33°C
(93°F)		33°C
(92°F)		32°C
(89°F)		31°C
(87°F)		31°C
(88°F)		32°C
(90°F)
Daily mean25°C
(78°F)		27°C
(80°F)		27°C
(82°F)		28°C
(83°F)		27°C
(81°F)		26°C
(79°F)		27°C
(81°F)		27°C
(81°F)		26°C
(79°F)		25°C
(78°F)		25°C
(78°F)		25°C
(78°F)
Average low20°C
(68°F)		21°C
(69°F)		21°C
(71°F)		22°C
(73°F)		23°C
(73°F)		22°C
(72°F)		22°C
(72°F)		22°C
(72°F)		22°C
(71°F)		22°C
(71°F)		21°C
(70°F)		20°C
(68°F)
Mean minimum16°C
(61°F)		18°C
(64°F)		18°C
(65°F)		20°C
(68°F)		21°C
(69°F)		21°C
(69°F)		21°C
(69°F)		20°C
(69°F)		20°C
(69°F)		20°C
(68°F)		18°C
(65°F)		16°C
(62°F)
Minimum13°C
(56°F)		15°C
(59°F)		16°C
(61°F)		19°C
(66°F)		19°C
(67°F)		19°C
(67°F)		20°C
(69°F)		20°C
(68°F)		19°C
(67°F)		18°C
(65°F)		17°C
(63°F)		16°C
(61°F)

Compare climate in Chalatenango with other places

Compare temperature, precipitation, sunshine, UV index in Chalatenango, El Salvador with other places around the world.

Monthly average precipitation in Chalatenango, El Salvador

Chalatenango usually has the most precipitation in June, September and October, with an average of 24 rainy days and 209 mm (8.2 inches) of precipitation per month. The driest months in Chalatenango are January, February and March. On average, 2 mm (0.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Chalatenango. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)2 (0.1)2 (0.1)2 (0.1)29 (1.1)180 (7.1)224 (8.8)96 (3.8)148 (5.8)216 (8.5)186 (7.3)45 (1.8)4 (0.2)
Average precipitation days (≥ 1 mm)000722241621262461

Monthly sunshine hours in Chalatenango, El Salvador

The sunniest months in Chalatenango are March, July and December, when the sun shines an average of 10 hours 28 minutes a day. Least sunny months in Chalatenango: January, June and October receive an average of 8 hours 49 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Chalatenango. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours260289326315302272324303287278305324
Mean daily daylight hours11h 23m11h 40m12h 3m12h 26m12h 46m12h 55m12h 50m12h 33m12h 10m11h 47m11h 27m11h 17m

Solar UV radiation in Chalatenango, El Salvador

Chalatenango experiences the highest level of ultraviolet (UV) radiation in March, April and May, when the maximum UV index can reach values of 14 - 14, 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 Chalatenango UV Index data.

Average daily maximum UV levels by month for Chalatenango. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)11131414141414131313109