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Monthly climate in Batan, Costa Rica

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Batan features a tropical rainforest climate (Af). Temperatures typically range between 23 °C (74 °F) and 25 °C (78 °F) through the year, but rarely can drop to 16 °C (61 °F) or can rise to as high as 32 °C (91 °F). The average annual precipitation amounts to about 3703 mm (145.8 inches) and receives 315 rainy days on the 1 mm (0.04 inches) threshold annually. Batan enjoys an average of 3407 hours of sunshine throughout the year, and daylight varies from 11 hours 32 minutes to 12 hours 41 minutes per day.

Monthly average temperatures in Batan, Costa Rica

The warmest months in Batan are May, June and September, with daily mean temperatures ranging from 25 to 25 °C (78 - 78 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from 23 to 23 °C (74 - 75 °F) throughout the day. On average each year, Batan experiences 318 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 Batan. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum29°C
(84°F)		29°C
(85°F)		29°C
(85°F)		31°C
(88°F)		32°C
(91°F)		32°C
(89°F)		31°C
(88°F)		32°C
(90°F)		31°C
(89°F)		31°C
(88°F)		30°C
(86°F)		29°C
(84°F)
Mean maximum28°C
(83°F)		28°C
(83°F)		28°C
(83°F)		30°C
(87°F)		31°C
(89°F)		31°C
(88°F)		31°C
(87°F)		31°C
(89°F)		31°C
(88°F)		31°C
(88°F)		30°C
(86°F)		29°C
(84°F)
Average high26°C
(80°F)		27°C
(80°F)		27°C
(80°F)		28°C
(83°F)		29°C
(84°F)		29°C
(85°F)		29°C
(84°F)		29°C
(84°F)		29°C
(85°F)		29°C
(84°F)		28°C
(82°F)		27°C
(81°F)
Daily mean23°C
(74°F)		23°C
(74°F)		23°C
(75°F)		25°C
(77°F)		25°C
(78°F)		25°C
(78°F)		25°C
(77°F)		25°C
(78°F)		25°C
(78°F)		25°C
(77°F)		25°C
(76°F)		24°C
(75°F)
Average low20°C
(68°F)		20°C
(68°F)		20°C
(69°F)		22°C
(71°F)		23°C
(73°F)		23°C
(73°F)		23°C
(73°F)		22°C
(73°F)		22°C
(73°F)		22°C
(72°F)		22°C
(72°F)		21°C
(70°F)
Mean minimum18°C
(65°F)		17°C
(64°F)		18°C
(65°F)		19°C
(67°F)		21°C
(70°F)		22°C
(71°F)		21°C
(71°F)		21°C
(70°F)		21°C
(70°F)		21°C
(70°F)		20°C
(68°F)		18°C
(65°F)
Minimum17°C
(63°F)		16°C
(61°F)		18°C
(64°F)		19°C
(66°F)		20°C
(68°F)		21°C
(70°F)		21°C
(70°F)		21°C
(70°F)		21°C
(69°F)		20°C
(69°F)		20°C
(68°F)		18°C
(65°F)

Compare climate in Batan with other places

Compare temperature, precipitation, sunshine, UV index in Batan, Costa Rica with other places around the world.

Monthly average precipitation in Batan, Costa Rica

Batan usually has the most precipitation in May, July and November, with an average of 28 rainy days and 447 mm (17.6 inches) of precipitation per month. The driest months in Batan are February, March and April. On average, 150 mm (5.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Batan. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)252 (9.9)138 (5.4)141 (5.5)172 (6.8)430 (16.9)370 (14.6)496 (19.5)352 (13.9)240 (9.4)354 (13.9)416 (16.4)342 (13.5)
Average precipitation days (≥ 1 mm)192024252929303028292725

Monthly sunshine hours in Batan, Costa Rica

The sunniest months in Batan are February, March and April, when the sun shines an average of 10 hours 26 minutes a day. Least sunny months in Batan: January, July and October receive an average of 8 hours 26 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Batan. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours241296330313276278273274282269279290
Mean daily daylight hours11h 35m11h 47m12h 3m12h 20m12h 34m12h 41m12h 37m12h 25m12h 9m11h 52m11h 38m11h 32m

Solar UV radiation in Batan, Costa Rica

Batan experiences the highest level of ultraviolet (UV) radiation in March, April and May, when the maximum UV index can reach values of 14 - 15, 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 12. For more detailed information, check out our hourly Batan UV Index data.

Average daily maximum UV levels by month for Batan. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)121314151413131313141110