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Monthly climate in Zacatecoluca, El Salvador

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Zacatecoluca features a tropical savanna climate (Aw). Temperatures typically range between 26 °C (78 °F) and 28 °C (82 °F) through the year, but rarely can drop to 17 °C (62 °F) or can rise to as high as 38 °C (101 °F). The average annual precipitation amounts to about 2131 mm (83.9 inches) and receives 186 rainy days on the 1 mm (0.04 inches) threshold annually. Zacatecoluca enjoys an average of 3670 hours of sunshine throughout the year, and daylight varies from 11 hours 19 minutes to 12 hours 53 minutes per day.

Monthly average temperatures in Zacatecoluca, El Salvador

The warmest months in Zacatecoluca are March, April and July, with daily mean temperatures ranging from 27 to 28 °C (81 - 82 °F) throughout the day. The coldest temperatures usually occur in October, November and December, when daily mean temperatures range from 26 to 26 °C (78 - 79 °F) throughout the day. On average each year, Zacatecoluca experiences 328 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 Zacatecoluca. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum37°C
(98°F)		38°C
(100°F)		38°C
(100°F)		38°C
(101°F)		36°C
(97°F)		35°C
(95°F)		36°C
(97°F)		35°C
(95°F)		33°C
(92°F)		34°C
(93°F)		34°C
(94°F)		35°C
(96°F)
Mean maximum35°C
(96°F)		37°C
(98°F)		37°C
(100°F)		37°C
(99°F)		35°C
(94°F)		33°C
(92°F)		34°C
(94°F)		34°C
(94°F)		33°C
(91°F)		33°C
(91°F)		33°C
(92°F)		34°C
(94°F)
Average high33°C
(92°F)		34°C
(94°F)		35°C
(95°F)		34°C
(93°F)		32°C
(90°F)		31°C
(88°F)		32°C
(91°F)		32°C
(89°F)		31°C
(88°F)		30°C
(87°F)		31°C
(88°F)		32°C
(91°F)
Daily mean26°C
(79°F)		27°C
(81°F)		28°C
(82°F)		28°C
(82°F)		27°C
(81°F)		26°C
(80°F)		27°C
(81°F)		27°C
(80°F)		26°C
(79°F)		26°C
(78°F)		26°C
(79°F)		26°C
(79°F)
Average low21°C
(70°F)		21°C
(70°F)		22°C
(72°F)		23°C
(74°F)		23°C
(74°F)		23°C
(74°F)		23°C
(74°F)		23°C
(74°F)		23°C
(73°F)		23°C
(73°F)		22°C
(72°F)		21°C
(70°F)
Mean minimum18°C
(65°F)		19°C
(66°F)		20°C
(67°F)		21°C
(71°F)		22°C
(72°F)		22°C
(72°F)		22°C
(72°F)		22°C
(71°F)		22°C
(71°F)		22°C
(71°F)		20°C
(69°F)		18°C
(66°F)
Minimum17°C
(63°F)		17°C
(62°F)		19°C
(66°F)		20°C
(68°F)		21°C
(71°F)		21°C
(71°F)		21°C
(71°F)		21°C
(71°F)		21°C
(71°F)		21°C
(70°F)		19°C
(67°F)		18°C
(64°F)

Compare climate in Zacatecoluca with other places

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

Monthly average precipitation in Zacatecoluca, El Salvador

Zacatecoluca usually has the most precipitation in June, September and October, with an average of 28 rainy days and 383 mm (15.1 inches) of precipitation per month. The driest months in Zacatecoluca 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 Zacatecoluca. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)2 (0.1)6 (0.2)8 (0.3)53 (2.1)324 (12.8)391 (15.4)182 (7.2)316 (12.5)349 (13.7)407 (16.0)84 (3.3)8 (0.3)
Average precipitation days (≥ 1 mm)01115272720252928112

Monthly sunshine hours in Zacatecoluca, El Salvador

The sunniest months in Zacatecoluca are March, July and December, when the sun shines an average of 10 hours 34 minutes a day. Least sunny months in Zacatecoluca: January, June and October receive an average of 9 hours 6 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Zacatecoluca. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours263293328319313285329314299289307325
Mean daily daylight hours11h 25m11h 41m12h 3m12h 25m12h 44m12h 53m12h 48m12h 32m12h 10m11h 48m11h 29m11h 19m

Solar UV radiation in Zacatecoluca, El Salvador

Zacatecoluca 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 Zacatecoluca UV Index data.

Average daily maximum UV levels by month for Zacatecoluca. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)11121414141413131313109