Lethem weather by month & the best time to visit
Guyana · small town · tropical — wet & dry seasons climate
The best time to visit Lethem is September — its sunniest month (Sunshine Score 79/100). Lethem averages about 2,454 hours of sunshine a year. Daytime highs around 32°C / 90°F and roughly 79 mm of rain in September.
When is the best time to visit Lethem?
For sunshine, the best time to visit Lethem is September. The dullest month is April (52/100, 105 mm of rain). The full month-by-month picture is in the table below.
How sunny is Lethem?
Lethem gets a moderate 2,454 hours of sunshine a year. September (79/100) is noticeably better than April (52). Lethem is the sunniest of the 4 destinations tracked in Guyana. Rain has a clear season: the wettest stretch, around June, carries about 56% of the annual 1,387 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV |
|---|---|---|---|---|---|
| January | 62 | 35° / 95°F | 23° / 73°F | 25 mm | 10 |
| February | 53 | 36° / 97°F | 24° / 75°F | 27 mm | 10 |
| March | 53 | 36° / 97°F | 24° / 75°F | 29 mm | 10 |
| April | 52 | 35° / 95°F | 24° / 75°F | 105 mm | 10 |
| May | 66 | 31° / 88°F | 23° / 73°F | 259 mm | 9 |
| June | 66 | 30° / 86°F | 22° / 72°F | 274 mm | 9 |
| July | 66 | 30° / 86°F | 22° / 72°F | 247 mm | 9 |
| August | 66 | 31° / 88°F | 23° / 73°F | 181 mm | 10 |
| September | 79 | 32° / 90°F | 23° / 73°F | 79 mm | 11 |
| October | 66 | 34° / 93°F | 23° / 73°F | 62 mm | 10 |
| November | 67 | 34° / 93°F | 24° / 75°F | 54 mm | 10 |
| December | 68 | 34° / 93°F | 23° / 73°F | 45 mm | 9 |
Nearest destinations
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Lethem: questions and answers
What kind of destination is Lethem?
Lethem is a small town in Guyana with a tropical — wet & dry seasons climate.
How many hours of sunshine does Lethem get a year?
Lethem gets about 2,454 hours of sunshine a year, at its best around September.
When is the best time to visit Lethem?
The sunniest time to visit Lethem is September, when the Sunshine Score peaks at 79/100. Expect daytime highs around 32°C / 90°F.
What is the least sunny month in Lethem?
April is the least sunny month in Lethem, scoring 52/100 with about 105 mm of rain.
Is Lethem the sunniest place in Guyana?
Yes — with about 2,454 hours of sunshine a year, Lethem has the most annual sunshine of the 4 Guyana destinations tracked by Sunshine Atlas.
How strong is the sun in Lethem?
The typical midday UV index in Lethem peaks around 11 (extreme) in September, easing to about 9 (very high) in May. Month-by-month midday UV values are in the UV column of the table on this page.
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