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Monthly climate in Grenville, Grenada

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Grenville 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 23 °C (74 °F) or can rise to as high as 29 °C (85 °F). The average annual precipitation amounts to about 1213 mm (47.8 inches) and receives 222 rainy days on the 1 mm (0.04 inches) threshold annually. Grenville enjoys an average of 3895 hours of sunshine throughout the year, and daylight varies from 11 hours 24 minutes to 12 hours 48 minutes per day.

Monthly average temperatures in Grenville, Grenada

The warmest months in Grenville are August, September and October, with daily mean temperatures ranging from 27 to 28 °C (81 - 82 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from 26 to 26 °C (78 - 79 °F) throughout the day. On average each year, Grenville 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 Grenville. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum27°C
(82°F)		27°C
(81°F)		27°C
(81°F)		28°C
(82°F)		28°C
(83°F)		28°C
(83°F)		28°C
(83°F)		29°C
(84°F)		29°C
(85°F)		29°C
(85°F)		28°C
(84°F)		28°C
(83°F)
Mean maximum27°C
(81°F)		27°C
(80°F)		27°C
(80°F)		27°C
(81°F)		28°C
(82°F)		28°C
(82°F)		28°C
(83°F)		29°C
(84°F)		29°C
(85°F)		29°C
(84°F)		28°C
(83°F)		28°C
(82°F)
Average high26°C
(80°F)		26°C
(79°F)		26°C
(80°F)		27°C
(80°F)		27°C
(81°F)		27°C
(82°F)		28°C
(82°F)		28°C
(83°F)		28°C
(83°F)		28°C
(83°F)		28°C
(82°F)		27°C
(81°F)
Daily mean26°C
(79°F)		26°C
(78°F)		26°C
(79°F)		26°C
(80°F)		27°C
(81°F)		27°C
(81°F)		27°C
(81°F)		27°C
(81°F)		28°C
(82°F)		27°C
(82°F)		27°C
(81°F)		26°C
(80°F)
Average low25°C
(77°F)		25°C
(77°F)		25°C
(78°F)		26°C
(79°F)		26°C
(79°F)		26°C
(79°F)		26°C
(79°F)		26°C
(80°F)		27°C
(80°F)		26°C
(80°F)		26°C
(79°F)		26°C
(79°F)
Mean minimum24°C
(75°F)		24°C
(75°F)		24°C
(75°F)		24°C
(76°F)		25°C
(77°F)		25°C
(78°F)		25°C
(77°F)		25°C
(78°F)		26°C
(78°F)		25°C
(78°F)		25°C
(78°F)		25°C
(76°F)
Minimum23°C
(74°F)		23°C
(74°F)		24°C
(75°F)		24°C
(76°F)		25°C
(76°F)		25°C
(77°F)		25°C
(77°F)		25°C
(77°F)		25°C
(78°F)		25°C
(77°F)		25°C
(77°F)		24°C
(75°F)

Compare climate in Grenville with other places

Compare temperature, precipitation, sunshine, UV index in Grenville, Grenada with other places around the world.

Monthly average precipitation in Grenville, Grenada

Grenville usually has the most precipitation in July, August and October, with an average of 24 rainy days and 178 mm (7.0 inches) of precipitation per month. The driest months in Grenville are February, March and April. On average, 35 mm (1.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Grenville. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)49 (1.9)37 (1.5)41 (1.6)26 (1.0)52 (2.1)112 (4.4)162 (6.4)174 (6.8)146 (5.7)197 (7.8)134 (5.3)82 (3.2)
Average precipitation days (≥ 1 mm)141412101420262421242221

Monthly sunshine hours in Grenville, Grenada

The sunniest months in Grenville are March, May and August, when the sun shines an average of 11 hours 7 minutes a day. Least sunny months in Grenville: January, February and November receive an average of 9 hours 51 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Grenville. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours267304342335349319341342325323315327
Mean daily daylight hours11h 29m11h 44m12h 3m12h 23m12h 40m12h 48m12h 44m12h 29m12h 10m11h 50m11h 33m11h 24m

Solar UV radiation in Grenville, Grenada

Grenville experiences the highest level of ultraviolet (UV) radiation in April, August and September, 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 Grenville UV Index data.

Average daily maximum UV levels by month for Grenville. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)111214141413131414131110