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Monthly climate in Saint Ann's Bay, Jamaica

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Saint Ann's Bay features a tropical savanna climate (Aw). Temperatures typically range between 24 °C (76 °F) and 28 °C (83 °F) through the year, but rarely can drop to 19 °C (66 °F) or can rise to as high as 33 °C (92 °F). The average annual precipitation amounts to about 1212 mm (47.7 inches) and receives 206 rainy days on the 1 mm (0.04 inches) threshold annually. Saint Ann's Bay enjoys an average of 3792 hours of sunshine throughout the year, and daylight varies from 11 hours 1 minutes to 13 hours 12 minutes per day.

Monthly average temperatures in Saint Ann's Bay, Jamaica

The warmest months in Saint Ann's Bay are July, August and September, with daily mean temperatures ranging from 27 to 28 °C (82 - 83 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from 24 to 25 °C (76 - 77 °F) throughout the day. On average each year, Saint Ann's Bay experiences 324 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 Saint Ann's Bay. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum29°C
(85°F)		29°C
(85°F)		31°C
(87°F)		31°C
(88°F)		32°C
(90°F)		33°C
(91°F)		33°C
(92°F)		33°C
(91°F)		33°C
(91°F)		31°C
(88°F)		30°C
(86°F)		30°C
(86°F)
Mean maximum28°C
(83°F)		28°C
(83°F)		29°C
(84°F)		30°C
(86°F)		31°C
(88°F)		32°C
(89°F)		33°C
(91°F)		32°C
(90°F)		32°C
(89°F)		31°C
(87°F)		30°C
(86°F)		29°C
(85°F)
Average high27°C
(80°F)		27°C
(80°F)		27°C
(81°F)		28°C
(83°F)		29°C
(85°F)		30°C
(87°F)		31°C
(88°F)		31°C
(88°F)		30°C
(87°F)		29°C
(85°F)		28°C
(83°F)		27°C
(82°F)
Daily mean24°C
(76°F)		25°C
(76°F)		25°C
(77°F)		26°C
(78°F)		26°C
(80°F)		27°C
(82°F)		28°C
(82°F)		28°C
(83°F)		27°C
(82°F)		27°C
(80°F)		26°C
(79°F)		25°C
(78°F)
Average low23°C
(73°F)		23°C
(73°F)		23°C
(73°F)		24°C
(75°F)		24°C
(76°F)		25°C
(78°F)		26°C
(78°F)		26°C
(79°F)		26°C
(78°F)		25°C
(77°F)		24°C
(76°F)		24°C
(75°F)
Mean minimum21°C
(70°F)		21°C
(71°F)		21°C
(71°F)		22°C
(72°F)		23°C
(74°F)		24°C
(76°F)		24°C
(76°F)		25°C
(77°F)		24°C
(76°F)		24°C
(76°F)		23°C
(74°F)		22°C
(72°F)
Minimum19°C
(66°F)		20°C
(69°F)		20°C
(68°F)		22°C
(71°F)		23°C
(73°F)		23°C
(74°F)		24°C
(76°F)		24°C
(75°F)		24°C
(75°F)		24°C
(75°F)		23°C
(73°F)		22°C
(71°F)

Compare climate in Saint Ann's Bay with other places

Compare temperature, precipitation, sunshine, UV index in Saint Ann's Bay, Jamaica with other places around the world.

Monthly average precipitation in Saint Ann's Bay, Jamaica

Saint Ann's Bay usually has the most precipitation in September, October and November, with an average of 22 rainy days and 163 mm (6.4 inches) of precipitation per month. The driest months in Saint Ann's Bay are January, February and June. On average, 57 mm (2.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Saint Ann's Bay. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)68 (2.7)38 (1.5)83 (3.3)85 (3.3)136 (5.3)65 (2.6)70 (2.8)92 (3.6)165 (6.5)182 (7.1)143 (5.6)86 (3.4)
Average precipitation days (≥ 1 mm)131418151812141721242218

Monthly sunshine hours in Saint Ann's Bay, Jamaica

The sunniest months in Saint Ann's Bay are March, April and July, when the sun shines an average of 11 hours 12 minutes a day. Least sunny months in Saint Ann's Bay: January, February and November receive an average of 9 hours 14 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Saint Ann's Bay. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours244299341340328334349337317303287307
Mean daily daylight hours11h 8m11h 32m12h 2m12h 33m12h 59m13h 12m13h 5m12h 42m12h 12m11h 41m11h 14m11h 1m

Solar UV radiation in Saint Ann's Bay, Jamaica

Saint Ann's Bay experiences the highest level of ultraviolet (UV) radiation in April, August and September, when the maximum UV index can reach values of 13 - 14, which corresponds to the Extreme category of sun exposure. January, November and December are in the Very High exposure category. In these months, the maximum values of the UV index do not exceed 9. For more detailed information, check out our hourly Saint Ann's Bay UV Index data.

Average daily maximum UV levels by month for Saint Ann's Bay. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)911131413131313131298