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Monthly climate in Anna Regina, Guyana

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Anna Regina features a tropical rainforest climate (Af). Temperatures typically range between 26 °C (79 °F) and 28 °C (83 °F) through the year, but rarely can drop to 22 °C (73 °F) or can rise to as high as 33 °C (92 °F). The average annual precipitation amounts to about 2189 mm (86.2 inches) and receives 294 rainy days on the 1 mm (0.04 inches) threshold annually. Anna Regina enjoys an average of 3665 hours of sunshine throughout the year, and daylight varies from 11 hours 41 minutes to 12 hours 31 minutes per day.

Monthly average temperatures in Anna Regina, Guyana

The warmest months in Anna Regina are August, September and October, 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 December, when daily mean temperatures range from 26 to 26 °C (79 - 79 °F) throughout the day. On average each year, Anna Regina 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 Anna Regina. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum30°C
(86°F)		31°C
(88°F)		31°C
(87°F)		31°C
(88°F)		30°C
(87°F)		30°C
(87°F)		32°C
(90°F)		32°C
(90°F)		33°C
(92°F)		33°C
(92°F)		32°C
(89°F)		30°C
(87°F)
Mean maximum29°C
(85°F)		30°C
(86°F)		30°C
(86°F)		30°C
(87°F)		30°C
(86°F)		30°C
(86°F)		31°C
(88°F)		32°C
(90°F)		33°C
(91°F)		33°C
(91°F)		31°C
(88°F)		30°C
(86°F)
Average high28°C
(83°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)		30°C
(86°F)		31°C
(88°F)		31°C
(88°F)		29°C
(85°F)		28°C
(83°F)
Daily mean26°C
(79°F)		26°C
(79°F)		26°C
(80°F)		27°C
(80°F)		27°C
(80°F)		26°C
(80°F)		27°C
(80°F)		27°C
(82°F)		28°C
(83°F)		28°C
(82°F)		27°C
(81°F)		26°C
(79°F)
Average low24°C
(76°F)		24°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
(78°F)		26°C
(78°F)		26°C
(78°F)		25°C
(77°F)		25°C
(76°F)
Mean minimum23°C
(73°F)		23°C
(74°F)		23°C
(74°F)		24°C
(75°F)		24°C
(76°F)		24°C
(76°F)		24°C
(75°F)		24°C
(75°F)		24°C
(76°F)		24°C
(76°F)		24°C
(76°F)		24°C
(75°F)
Minimum22°C
(73°F)		23°C
(73°F)		23°C
(73°F)		24°C
(75°F)		24°C
(76°F)		24°C
(75°F)		24°C
(75°F)		24°C
(75°F)		24°C
(75°F)		24°C
(75°F)		24°C
(76°F)		23°C
(74°F)

Compare climate in Anna Regina with other places

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

Monthly average precipitation in Anna Regina, Guyana

Anna Regina usually has the most precipitation in May, June and December, with an average of 29 rainy days and 306 mm (12.1 inches) of precipitation per month. The driest months in Anna Regina are February, April and September. On average, 97 mm (3.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Anna Regina. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)137 (5.4)87 (3.4)120 (4.7)111 (4.4)269 (10.6)375 (14.8)250 (9.8)146 (5.7)94 (3.7)119 (4.7)206 (8.1)275 (10.8)
Average precipitation days (≥ 1 mm)212321222929302518212629

Monthly sunshine hours in Anna Regina, Guyana

The sunniest months in Anna Regina are March, August and September, when the sun shines an average of 10 hours 45 minutes a day. Least sunny months in Anna Regina: January, June and November receive an average of 8 hours 57 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Anna Regina. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours258298334317307267320333321318289298
Mean daily daylight hours11h 44m11h 52m12h 4m12h 16m12h 26m12h 31m12h 28m12h 19m12h 8m11h 56m11h 46m11h 41m

Solar UV radiation in Anna Regina, Guyana

Anna Regina 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. June, November and December are in the Extreme exposure category. In these months, the maximum values of the UV index do not exceed 13. For more detailed information, check out our hourly Anna Regina UV Index data.

Average daily maximum UV levels by month for Anna Regina. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)131415151413131313131211