Lethem weather live forecast

Today's maximum temperature in Lethem is expected to be 35°C. Select a day from the live weather forecast for Lethem, Guyana for more weather parameters.

Thursday
20th Aug
35

26

5

11
Friday
21st Aug
34

25

7

11
Saturday
22nd Aug
35

25

8

11
Sunday
23rd Aug
35

25

6

8
Monday
24th Aug
34

25

8

9

5-day weather forecast updated at 04:00 on Wednesday 19th August 2026 GMT

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The 5-day weather forecast for Guyana (Lethem) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Lethem weather forecast by day

Below are the detailed weather forecasts for Lethem for the next 5 days.

Lethem weather for Thursday 20th August 2026

Expect broken clouds in Lethem, Guyana with a maximum temperature of 35°C, high levels of heat & humidity, maximum UV of 11 (Extreme) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the east.

35
°C maximum temperature
26
°C minimum temperature
broken clouds
5
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
H
high heat & humidity
17
kph wind from E

Lethem weather for Friday 21st August 2026

Expect isolated thunderstorms in Lethem, Guyana with a maximum temperature of 34°C, high levels of heat & humidity, maximum UV of 11+ (Extreme) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 41% chance of some rain and a gentle breeze of 18 kph from the east.

34
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
7
hours of sunshine
11
UV index (Extreme)
41
% chance of some rain
<2
mm of rainfall expected
H
high heat & humidity
18
kph wind from E

Lethem weather for Saturday 22nd August 2026

Expect scattered clouds in Lethem, Guyana with a maximum temperature of 35°C, high levels of heat & humidity, maximum UV of 11 (Extreme) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the east.

35
°C maximum temperature
25
°C minimum temperature
scattered clouds
8
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
H
high heat & humidity
19
kph wind from E

Lethem weather for Sunday 23rd August 2026

Expect isolated thunderstorms in Lethem, Guyana with a maximum temperature of 35°C, high levels of heat & humidity, maximum UV of 8 (Very High) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 50% chance of some rain and a gentle breeze of 18 kph from the east.

35
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
8
UV index (Very High)
50
% chance of some rain
<2
mm of rainfall expected
H
high heat & humidity
18
kph wind from E

Lethem weather for Monday 24th August 2026

Expect isolated thunderstorms in Lethem, Guyana with a maximum temperature of 34°C, high levels of heat & humidity, maximum UV of 9 (Very High) and 8 hours of bright sunshine. There are 0-2 mm of rainfall expected with 54% chance of some rain and a gentle breeze of 16 kph from the east.