Lethem weather live forecast

Today's maximum temperature in Lethem is expected to be 34°C. Select a day from the live weather forecast for Lethem, Guyana for more weather parameters.

Wednesday
23rd Sep
34

26

7

11
Thursday
24th Sep
34

25

7

9
Friday
25th Sep
36

25

8

11
Saturday
26th Sep
37

26

10

11
Sunday
27th Sep
37

26

8

11

5-day weather forecast updated at 04:00 on Wednesday 23rd September 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 Wednesday 23rd September 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 39% chance of some rain and a moderate breeze of 23 kph from the east.

34
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
7
hours of sunshine
11
UV index (Extreme)
39
% chance of some rain
<2
mm of rainfall expected
H
high heat & humidity
23
kph wind from E

Lethem weather for Thursday 24th September 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 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 40% chance of some rain and a moderate breeze of 22 kph from the east.

34
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
7
hours of sunshine
9
UV index (Very High)
40
% chance of some rain
<2
mm of rainfall expected
H
high heat & humidity
22
kph wind from E

Lethem weather for Friday 25th September 2026

Expect scattered clouds in Lethem, Guyana with a maximum temperature of 36°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 moderate breeze of 26 kph from the east.

36
°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
26
kph wind from E

Lethem weather for Saturday 26th September 2026

Expect scattered clouds in Lethem, Guyana with a maximum temperature of 37°C, very high levels of heat & humidity, maximum UV of 11 (Extreme) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 22 kph from the east.

37
°C maximum temperature
26
°C minimum temperature
scattered clouds
10
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
VH
very high heat & humidity
22
kph wind from E

Lethem weather for Sunday 27th September 2026

Expect scattered clouds in Lethem, Guyana with a maximum temperature of 37°C, very 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 moderate breeze of 20 kph from the east.