Lethem weather in December 2026
Expect daytime maximum temperatures of 90°F in Lethem, Guyana in December and very high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average with 14 days with some rainfall.
- 90°F max day temperature
90 - 7 hours of sunshine per day
- 14 days with some rainfall
14 - 73°F min night temperature
73 - 12 hours of daylight per day
12 - Very High heat & humidity
VH - 1.5 inches of monthly rainfall
1.5 - 11+ (Extreme) UV index
11
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Recommended for Guyana
The December weather guide for Guyana (Lethem) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Metric (°C) | Imperial (°F)
How hot is it in Lethem in December?
Daytime temperatures usually reach 84°F in Lethem in December with high heat and humidity, falling to 75°F at night.
How sunny is it in Lethem in December?
There are normally 6 hours of bright sunshine each day in Lethem in December - that's 53% of daylight hours.
How warm is the sea around Lethem in December?
The average sea temperature around Lethem in December is 81°F.
Does it rain in Lethem in December?
There are usually 25 days with some rain in Lethem in December and the average monthly rainfall is 11.6 inches.
Lethem December sunrise & sunset times
Browse the sunrise and sunset times for Lethem in December 2026. Select a month to view Lethem sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
| Date | Sunrise times | Sunset times |
|---|---|---|
| Tuesday, 1st December 2026 | 05:50 | 17:47 |
| Wednesday, 16th December 2026 | 05:57 | 17:53 |
| Thursday, 31st December 2026 | 06:04 | 18:00 |
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