Lethem weather live forecast

Today's maximum temperature in Lethem is expected to be 33°C. Select a day from the live weather forecast for Lethem, Guyana for more weather parameters.

Friday
14th Aug
33

24

5

6
Saturday
15th Aug
33

24

7

8
Sunday
16th Aug
35

25

8

11
Monday
17th Aug
35

26

7

11
Tuesday
18th Aug
35

25

9

11

5-day weather forecast updated at 04:00 on Friday 14th 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 Friday 14th August 2026

Expect isolated thunderstorms in Lethem, Guyana with a maximum temperature of 33°C, high levels of heat & humidity, maximum UV of 6 (High) and 5 hours of bright sunshine. There are 5-10 mm of rainfall expected with 67% chance of some rain and a light breeze of 10 kph from the north-east.

33
°C maximum temperature
24
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
6
UV index (High)
67
% chance of some rain
<10
mm of rainfall expected
H
high heat & humidity
10
kph wind from NE

Lethem weather for Saturday 15th August 2026

Expect isolated thunderstorms in Lethem, Guyana with a maximum temperature of 33°C, high levels of heat & humidity, maximum UV of 8 (Very High) and 7 hours of bright sunshine. There are 2-5 mm of rainfall expected with 41% chance of some rain and a light breeze of 12 kph from the east.

33
°C maximum temperature
24
°C minimum temperature
isolated thunderstorms
7
hours of sunshine
8
UV index (Very High)
41
% chance of some rain
<5
mm of rainfall expected
H
high heat & humidity
12
kph wind from E

Lethem weather for Sunday 16th August 2026

Expect isolated thunderstorms 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 0-2 mm of rainfall expected with 30% chance of some rain and a gentle breeze of 18 kph from the east.

35
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
8
hours of sunshine
11
UV index (Extreme)
30
% chance of some rain
<2
mm of rainfall expected
H
high heat & humidity
18
kph wind from E

Lethem weather for Monday 17th 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 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the east.

35
°C maximum temperature
26
°C minimum temperature
scattered clouds
7
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
H
high heat & humidity
18
kph wind from E

Lethem weather for Tuesday 18th 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 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the east.