San Juan weather forecast

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Sunday
27th Sep

30

25

5
Monday
28th Sep

30

25

6
Tuesday
29th Sep

31

27

6
Wednesday
30th Sep

30

27

6
Thursday
1st Oct

31

27

7

Last updated at 04:02 on Sunday 27th September 2020 GMT

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The 5-day weather forecast for San Juan, Puerto Rico is provided by the Swiss meteorological agency, MeteoBlue. Find out more about our data sources.

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San Juan weather forecast by day

Below are the detailed weather forecasts for San Juan for the next 5 days.

San Juan weather for Sunday 27th September 2020

Below is the San Juan weather forecast for Sunday 27th September 2020. Expect isolated thunderstorms in San Juan, Puerto Rico with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 5 hours of bright sunshine. There are 5-10 mm of rainfall expected with 62% chance of some rain and a gentle breeze of 18 kph from the east.

30
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
10
UV index (Very High)
62
% chance of some rain
<10
mm of rainfall expected
M
moderate heat & humidity
18
kph wind from E

San Juan weather for Monday 28th September 2020

Below is the San Juan weather forecast for Monday 28th September 2020. Expect isolated thunderstorms in San Juan, Puerto Rico with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 6 (High) and 6 hours of bright sunshine. There are 10-20 mm of rainfall expected with 55% chance of some rain and a gentle breeze of 19 kph from the east.

30
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
6
UV index (High)
55
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
19
kph wind from E

San Juan weather for Tuesday 29th September 2020

Below is the San Juan weather forecast for Tuesday 29th September 2020. Expect isolated thunderstorms in San Juan, Puerto Rico with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 64% chance of some rain and a moderate breeze of 22 kph from the east.

31
°C maximum temperature
27
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
10
UV index (Very High)
64
% chance of some rain
<2
mm of rainfall expected
M
moderate heat & humidity
22
kph wind from E

San Juan weather for Wednesday 30th September 2020

Below is the San Juan weather forecast for Wednesday 30th September 2020. Expect isolated thunderstorms in San Juan, Puerto Rico with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 6 hours of bright sunshine. There are 10-20 mm of rainfall expected with 83% chance of some rain and a gentle breeze of 16 kph from the east.

30
°C maximum temperature
27
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
9
UV index (Very High)
83
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
16
kph wind from E

San Juan weather for Thursday 1st October 2020

Below is the San Juan weather forecast for Thursday 1st October 2020. Expect isolated thunderstorms in San Juan, Puerto Rico with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 11+ (Extreme) and 7 hours of bright sunshine. There are 5-10 mm of rainfall expected with 72% chance of some rain and a gentle breeze of 18 kph from the east.