Monthly climate averages for Georgetown. Based on 10-year ERA5 reanalysis data.
Af Tropical Rainforest
Climate OverviewGuyana in December has hot conditions, with highs reaching 28.1°C (83°F) and afternoons the warmest part of the day. Rain falls on about 28 days this month, totalling around 272 mm.
This month falls at the beginning of Winter.
Compared to November, this month is about 1°C cooler with 3 more rainy days.
Daytime temperatures around 28°C (83°F) are ideal for full-day outdoor exploration. Keep afternoons flexible as tropical showers are common — they typically clear within an hour.
Rain most often builds later in the day, so mornings are typically the driest window and afternoon showers are more likely.
Weather conditions this month are among the best of the year, making it a popular time for outdoor activities.
Summer clothing like shorts, t-shirts, and sundresses will be comfortable. Bring a light cardigan for air-conditioned spaces. A waterproof jacket and shoes are non-negotiable — showers are frequent.
| Month | Temp | Feels Like | Rain | Sun | Humidity | Status | Details |
|---|---|---|---|---|---|---|---|
| January best | 28°C / 24°C | 32°C / 28°C | 23days (178 mm) Wet | 10.7h Excellent | 82% Humid | Wet | View Details |
| February best | 28°C / 24°C | 32°C / 27°C | 20days (128 mm) Wet | 10.6h Excellent | 82% Humid | Wet | View Details |
| March best | 28°C / 25°C | 32°C / 28°C | 21days (128 mm) Wet | 11h Excellent | 81% Humid | Wet | View Details |
| April best | 29°C / 25°C | 33°C / 29°C | 23days (191 mm) Wet | 10.3h Excellent | 82% Humid | Wet | View Details |
| May | 28°C / 25°C | 33°C / 29°C | 29days (379 mm) Wet | 8.9h Good | 86% Very Muggy | Wet | View Details |
| June | 28°C / 25°C | 34°C / 29°C | 29days (375 mm) Wet | 8.7h Good | 87% Very Muggy | Wet | View Details |
| July | 29°C / 25°C | 35°C / 29°C | 30days (250 mm) Wet | 10.7h Excellent | 85% Humid | Wet | View Details |
| August | 30°C / 25°C | 36°C / 30°C | 23days (151 mm) Wet | 11.2h Excellent | 83% Humid | Wet | View Details |
| September | 31°C / 26°C | 37°C / 31°C | 15days (78 mm) Wet | 11.4h Excellent | 81% Humid | Poor | View Details |
| October | 30°C / 26°C | 36°C / 31°C | 19days (127 mm) Wet | 10.7h Excellent | 81% Humid | Wet | View Details |
| November | 29°C / 25°C | 35°C / 30°C | 25days (213 mm) Wet | 9.9h Good | 84% Humid | Wet | View Details |
| December best | 28°C / 25°C | 33°C / 29°C | 28days (272 mm) Wet | 9.9h Good | 86% Very Muggy | Wet | View Details |
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