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Monthly climate in Chalchuapa, El Salvador

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Chalchuapa features a tropical savanna climate (Aw). Temperatures typically range between 22 °C (72 °F) and 25 °C (77 °F) through the year, but rarely can drop to 12 °C (53 °F) or can rise to as high as 35 °C (96 °F). The average annual precipitation amounts to about 1611 mm (63.4 inches) and receives 158 rainy days on the 1 mm (0.04 inches) threshold annually. Chalchuapa enjoys an average of 3576 hours of sunshine throughout the year, and daylight varies from 11 hours 18 minutes to 12 hours 55 minutes per day.

Monthly average temperatures in Chalchuapa, El Salvador

The warmest months in Chalchuapa are April, May and July, with daily mean temperatures ranging from 24 to 25 °C (76 - 77 °F) throughout the day. The coldest temperatures usually occur in January, November and December, when daily mean temperatures range from 22 to 23 °C (72 - 74 °F) throughout the day. On average each year, Chalchuapa experiences 323 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 Chalchuapa. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum33°C
(91°F)		35°C
(95°F)		35°C
(96°F)		35°C
(96°F)		35°C
(94°F)		33°C
(91°F)		34°C
(93°F)		33°C
(92°F)		32°C
(90°F)		32°C
(90°F)		32°C
(90°F)		32°C
(90°F)
Mean maximum32°C
(90°F)		33°C
(91°F)		34°C
(93°F)		35°C
(95°F)		33°C
(92°F)		31°C
(88°F)		33°C
(91°F)		33°C
(91°F)		31°C
(89°F)		31°C
(88°F)		31°C
(88°F)		32°C
(90°F)
Average high29°C
(85°F)		31°C
(87°F)		32°C
(89°F)		32°C
(89°F)		30°C
(86°F)		29°C
(84°F)		31°C
(87°F)		30°C
(86°F)		29°C
(85°F)		29°C
(84°F)		29°C
(85°F)		30°C
(85°F)
Daily mean22°C
(72°F)		23°C
(74°F)		24°C
(76°F)		25°C
(77°F)		24°C
(76°F)		24°C
(75°F)		25°C
(77°F)		24°C
(76°F)		24°C
(75°F)		23°C
(74°F)		23°C
(74°F)		23°C
(73°F)
Average low17°C
(63°F)		18°C
(64°F)		18°C
(65°F)		20°C
(68°F)		20°C
(69°F)		20°C
(68°F)		20°C
(68°F)		20°C
(68°F)		20°C
(68°F)		20°C
(68°F)		19°C
(66°F)		17°C
(64°F)
Mean minimum14°C
(57°F)		15°C
(59°F)		16°C
(61°F)		17°C
(63°F)		19°C
(66°F)		19°C
(66°F)		19°C
(66°F)		18°C
(65°F)		19°C
(66°F)		18°C
(65°F)		16°C
(61°F)		14°C
(58°F)
Minimum12°C
(54°F)		12°C
(53°F)		15°C
(59°F)		16°C
(61°F)		17°C
(64°F)		18°C
(65°F)		18°C
(65°F)		18°C
(64°F)		18°C
(65°F)		17°C
(63°F)		15°C
(59°F)		13°C
(56°F)

Compare climate in Chalchuapa with other places

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

Monthly average precipitation in Chalchuapa, El Salvador

Chalchuapa usually has the most precipitation in June, September and October, with an average of 25 rainy days and 310 mm (12.2 inches) of precipitation per month. The driest months in Chalchuapa are January, February and March. On average, 5 mm (0.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Chalchuapa. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)4 (0.2)5 (0.2)6 (0.2)56 (2.2)237 (9.3)330 (13.0)103 (4.1)223 (8.8)320 (12.6)281 (11.0)40 (1.6)6 (0.3)
Average precipitation days (≥ 1 mm)0111225261622272341

Monthly sunshine hours in Chalchuapa, El Salvador

The sunniest months in Chalchuapa are March, July and December, when the sun shines an average of 10 hours 27 minutes a day. Least sunny months in Chalchuapa: January, June and October receive an average of 8 hours 44 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Chalchuapa. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours260289326314301268322303284275305323
Mean daily daylight hours11h 23m11h 40m12h 3m12h 26m12h 45m12h 55m12h 50m12h 33m12h 10m11h 47m11h 28m11h 18m

Solar UV radiation in Chalchuapa, El Salvador

Chalchuapa 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 Chalchuapa UV Index data.

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