Monthly climate in Rosignol, Guyana

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Rosignol features a tropical rainforest climate (Af). Temperatures typically range between 26 °C (79 °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 32 °C (89 °F). The average annual precipitation amounts to about 2861 mm (112.6 inches) and receives 304 rainy days on the 1 mm (0.04 inches) threshold annually. Rosignol enjoys an average of 3609 hours of sunshine throughout the year, and daylight varies from 11 hours 45 minutes to 12 hours 27 minutes per day.

Monthly average temperatures in Rosignol, Guyana

The warmest months in Rosignol 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 December, when daily mean temperatures range from 26 to 26 °C (79 - 79 °F) throughout the day. On average each year, Rosignol 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 Rosignol. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum29°C
(84°F)
29°C
(84°F)
29°C
(85°F)
30°C
(86°F)
30°C
(86°F)
29°C
(85°F)
30°C
(86°F)
31°C
(87°F)
32°C
(89°F)
31°C
(88°F)
30°C
(87°F)
30°C
(86°F)
Mean maximum28°C
(83°F)
28°C
(83°F)
29°C
(84°F)
29°C
(85°F)
29°C
(85°F)
29°C
(85°F)
30°C
(86°F)
30°C
(87°F)
31°C
(88°F)
31°C
(87°F)
30°C
(86°F)
29°C
(85°F)
Average high27°C
(82°F)
27°C
(81°F)
28°C
(82°F)
28°C
(83°F)
28°C
(82°F)
28°C
(83°F)
29°C
(84°F)
29°C
(85°F)
30°C
(86°F)
30°C
(85°F)
29°C
(84°F)
28°C
(82°F)
Daily mean26°C
(79°F)
26°C
(79°F)
26°C
(79°F)
26°C
(80°F)
26°C
(79°F)
26°C
(79°F)
26°C
(80°F)
27°C
(81°F)
28°C
(82°F)
28°C
(82°F)
27°C
(81°F)
26°C
(79°F)
Average low24°C
(76°F)
24°C
(76°F)
25°C
(77°F)
25°C
(77°F)
25°C
(77°F)
25°C
(77°F)
25°C
(77°F)
25°C
(78°F)
26°C
(79°F)
26°C
(79°F)
25°C
(78°F)
25°C
(77°F)
Mean minimum24°C
(75°F)
23°C
(74°F)
24°C
(75°F)
24°C
(76°F)
24°C
(76°F)
24°C
(76°F)
24°C
(75°F)
24°C
(76°F)
24°C
(76°F)
25°C
(76°F)
24°C
(76°F)
24°C
(75°F)
Minimum23°C
(74°F)
23°C
(74°F)
23°C
(74°F)
23°C
(74°F)
24°C
(75°F)
24°C
(75°F)
24°C
(75°F)
24°C
(75°F)
24°C
(76°F)
24°C
(76°F)
24°C
(76°F)
23°C
(74°F)

Compare climate in Rosignol with other places

Compare temperature, precipitation, sunshine, UV index in Rosignol, Guyana with other places around the world.

Monthly average precipitation in Rosignol, Guyana

Rosignol usually has the most precipitation in May, June and December, with an average of 29 rainy days and 410 mm (16.1 inches) of precipitation per month. The driest months in Rosignol are February, September and October. On average, 119 mm (4.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Rosignol. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)158 (6.2)124 (4.9)166 (6.5)220 (8.7)464 (18.3)449 (17.7)315 (12.4)173 (6.8)116 (4.6)117 (4.6)243 (9.6)316 (12.5)
Average precipitation days (≥ 1 mm)222222243030302721202729

Monthly sunshine hours in Rosignol, Guyana

The sunniest months in Rosignol are March, August and October, when the sun shines an average of 10 hours 34 minutes a day. Least sunny months in Rosignol: January, June and November receive an average of 8 hours 54 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Rosignol. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours257288327306289266307326321329286301
Mean daily daylight hours11h 47m11h 54m12h 4m12h 14m12h 23m12h 27m12h 25m12h 17m12h 7m11h 57m11h 49m11h 45m

Solar UV radiation in Rosignol, Guyana

Rosignol experiences the highest level of ultraviolet (UV) radiation in March, April and May, when the maximum UV index can reach values of 14 - 16, which corresponds to the Extreme category of sun exposure. July, November and December are in the 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 Rosignol UV Index data.

Average daily maximum UV levels by month for Rosignol. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)131415161413121313131212