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Monthly climate in Acajutla, El Salvador

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Acajutla features a tropical savanna climate (Aw). Temperatures typically range between 27 °C (80 °F) and 28 °C (83 °F) through the year, but rarely can drop to 22 °C (71 °F) or can rise to as high as 33 °C (91 °F). The average annual precipitation amounts to about 1758 mm (69.2 inches) and receives 186 rainy days on the 1 mm (0.04 inches) threshold annually. Acajutla enjoys an average of 3649 hours of sunshine throughout the year, and daylight varies from 11 hours 19 minutes to 12 hours 54 minutes per day.

Monthly average temperatures in Acajutla, El Salvador

The warmest months in Acajutla are April, May and July, with daily mean temperatures ranging from 28 to 28 °C (82 - 83 °F) throughout the day. The coldest temperatures usually occur in January, October and December, when daily mean temperatures range from 27 to 27 °C (80 - 81 °F) throughout the day. On average each year, Acajutla 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 Acajutla. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum32°C
(90°F)		32°C
(90°F)		33°C
(91°F)		33°C
(91°F)		32°C
(89°F)		32°C
(91°F)		32°C
(89°F)		31°C
(89°F)		31°C
(88°F)		31°C
(89°F)		32°C
(89°F)		32°C
(90°F)
Mean maximum31°C
(88°F)		31°C
(89°F)		32°C
(90°F)		32°C
(90°F)		31°C
(88°F)		30°C
(87°F)		31°C
(88°F)		31°C
(88°F)		31°C
(87°F)		31°C
(88°F)		31°C
(88°F)		31°C
(89°F)
Average high30°C
(86°F)		30°C
(86°F)		30°C
(87°F)		30°C
(87°F)		30°C
(85°F)		29°C
(85°F)		30°C
(86°F)		30°C
(85°F)		29°C
(85°F)		29°C
(84°F)		30°C
(86°F)		30°C
(86°F)
Daily mean27°C
(80°F)		27°C
(81°F)		28°C
(82°F)		28°C
(83°F)		28°C
(82°F)		27°C
(82°F)		28°C
(82°F)		28°C
(82°F)		27°C
(81°F)		27°C
(81°F)		27°C
(81°F)		27°C
(81°F)
Average low25°C
(77°F)		25°C
(77°F)		26°C
(78°F)		26°C
(79°F)		26°C
(79°F)		26°C
(79°F)		26°C
(79°F)		26°C
(79°F)		26°C
(78°F)		25°C
(78°F)		25°C
(78°F)		25°C
(77°F)
Mean minimum23°C
(74°F)		24°C
(75°F)		24°C
(76°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)		23°C
(74°F)
Minimum22°C
(71°F)		22°C
(73°F)		24°C
(75°F)		25°C
(77°F)		24°C
(76°F)		24°C
(76°F)		24°C
(76°F)		24°C
(76°F)		24°C
(76°F)		24°C
(75°F)		24°C
(75°F)		23°C
(73°F)

Compare climate in Acajutla with other places

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

Monthly average precipitation in Acajutla, El Salvador

Acajutla usually has the most precipitation in June, September and October, with an average of 27 rainy days and 305 mm (12.0 inches) of precipitation per month. The driest months in Acajutla are January, February and December. On average, 6 mm (0.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Acajutla. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)5 (0.2)4 (0.2)12 (0.5)40 (1.6)248 (9.8)291 (11.5)176 (6.9)273 (10.7)284 (11.2)341 (13.4)76 (3.0)8 (0.3)
Average precipitation days (≥ 1 mm)1139252725272826122

Monthly sunshine hours in Acajutla, El Salvador

The sunniest months in Acajutla are March, July and December, when the sun shines an average of 10 hours 31 minutes a day. Least sunny months in Acajutla: January, June and October receive an average of 9 hours 1 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Acajutla. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours261291327318312282326310296286308325
Mean daily daylight hours11h 24m11h 41m12h 3m12h 25m12h 44m12h 54m12h 49m12h 32m12h 10m11h 48m11h 28m11h 19m

Solar UV radiation in Acajutla, El Salvador

Acajutla 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 Acajutla UV Index data.

Average daily maximum UV levels by month for Acajutla. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)11121414141413131312109