Mabaruma, Guyana climate

Af Tropical rainforest

Mabaruma has a remarkably steady tropical climate (Tropical rainforest, Köppen Af). The hottest month is April with an average daily high near 91°F, while the coldest is January averaging around 71°F at night. Around 77 inches of precipitation falls each year, peaking in June (10.3 inches) and easing off in March (2.8 inches).

☀️ All year

Hot

Daytime highs near 91°F most of the year.

About 80 days a year above 90 °F

🌙 Nights

Stays warm

Even the coolest nights stay near 71°F.

🌧️ Rain

Very wet

About 77 in of rain a year.

Wettest in June

⛅ Sky & trend

Often cloudy

Cloudy skies much of the year.

Temperature & precipitation

Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figures

Hours of sunshine per day

Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)

Mabaruma climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	85	87	89	91	88	84	84	85	87	87	86	85
Avg temp (°F)	78	79	80	82	81	79	78	79	80	81	80	79
Avg low (°F)	71	71	72	73	74	74	73	73	74	74	74	73
Precipitation (in)	5.3	3.2	2.8	3.5	6.6	10.3	9.5	7.9	5.2	6.2	8.3	8.0

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°F)	85	87	89	91	88	84
Avg temp (°F)	78	79	80	82	81	79
Avg low (°F)	71	71	72	73	74	74
Precipitation (in)	5.3	3.2	2.8	3.5	6.6	10.3

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	84	85	87	87	86	85
Avg temp (°F)	78	79	80	81	80	79
Avg low (°F)	73	73	74	74	74	73
Precipitation (in)	9.5	7.9	5.2	6.2	8.3	8.0

How often — frequency of weather events

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Days with high ≥ 90°F (days)	3	7	15	19	9	1	0.1	2	6	8	6	3

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Days with high ≥ 90°F (days)	3	7	15	19	9	1

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Days with high ≥ 90°F (days)	0.1	2	6	8	6	3

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	60	60	60	62	68	72	60	54	56	63	69	65
Relative humidity (%)	82	78	74	74	82	89	90	89	86	85	86	85
Wind speed (mph)	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2	0.2

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	60	60	60	62	68	72
Relative humidity (%)	82	78	74	74	82	89
Wind speed (mph)	0.2	0.2	0.2	0.2	0.2	0.2

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	60	54	56	63	69	65
Relative humidity (%)	90	89	86	85	86	85
Wind speed (mph)	0.2	0.2	0.2	0.2	0.2	0.2

Methodology & sources

Temperature & precipitation — modelled for this location from ERA5-Land reanalysis, a ~9 km global grid, because no long-record weather station is close enough to use.

Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.

How we build these numbers →