San Juan

Current Weather

26°78°

Overcast

Feels Like: 25°76°

Min: 23°73°

Max: 29°85°

The next few hours will be partly cloudy, with today reaching 29°C and dropping to 24°C. The coming days will be light rain throughout the day and possible thunderstorms in the afternoon.

Hourly Forecast
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78%
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Air Quality
22
Good

Air quality is satisfactory, and air pollution poses little or no risk.

GoodHazardous
Daylight Hours

05:44

Sunrise

17:28

Sunset

11 hours 43 minutes of sunlight today
Moon

06:25

Moonrise

Daily Forecast

Today

23°73°
29°85°

Monday

24°75°
32°89°

Tuesday

24°75°
32°89°

Wednesday

23°74°
32°90°

Thursday

22°72°
32°90°

Friday

23°73°
32°89°

Saturday

24°74°
27°80°

Sunday

22°72°
32°89°

Monday

22°71°
32°89°

Tuesday

22°72°
30°87°
UV Index
No protection needed
0Low
LowExtreme
Humidity
84%Humid
LowHigh
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Weather in San Juan today, October 11, 2026

San Juan starts October 11, 2026 looking damp, with rain in the forecast and wetter spells likely at times. Waterproof kit is the safer call for early plans.San Juan starts October 11, 2026 looking damp, with rain in the forecast and wetter spells likely at times. Waterproof kit is the safer call for early plans.

The temperature range runs from about 23°C up to 29°C. Expect humidity between 81% and 88%, most humid near 17:00. A lighter breeze peaks around 18:00 near 9 km/h.The temperature range runs from about 73°F up to 85°F. Expect humidity between 81% and 88%, most humid near 17:00. A lighter breeze peaks around 18:00 near 6 mph.

The second half of the day still looks unsettled, with rain probability around 44% by 17:00. Dense cloud near 98% at 18:00 keeps the feel grey. Expect visibility near 15 km, with poorer spells close to 8.5 km. Sunrise is at 05:44 and sunset at 17:28, giving 11 hours 43 minutes of sunlight today.The second half of the day still looks unsettled, with rain probability around 44% by 17:00. Dense cloud near 98% at 18:00 keeps the feel grey. Expect visibility near 9.3 mi, with poorer spells close to 5.3 mi. Sunrise is at 05:44 and sunset at 17:28, giving 11 hours 43 minutes of sunlight today.

Taken together, San Juan looks wet enough on October 11, 2026 that flexible outdoor plans work best, with temperatures peaking near 29°C.Taken together, San Juan looks wet enough on October 11, 2026 that flexible outdoor plans work best, with temperatures peaking near 85°F.

Frequently asked questions about weather in San Juan

How warm does it get in San Juan?

The warmest month in San Juan is March, with average high temperatures of 33°C. The average temperature during this period is around 25°C.The warmest month in San Juan is March, with average high temperatures of 91°F. The average temperature during this period is around 78°F.

How cold does it get in San Juan?

The coldest month in San Juan is January, with average low temperatures of 18°C. The average temperature during this period is around 23°C.The coldest month in San Juan is January, with average low temperatures of 64°F. The average temperature during this period is around 73°F.

What is the wettest time of year in San Juan?

The wettest month in San Juan is September, with an average of 345 mm of precipitation.The wettest month in San Juan is September, with an average of 13.6 in of precipitation.

What is the driest time of year in San Juan?

The driest month in San Juan is January, with an average of 2 mm of precipitation.The driest month in San Juan is January, with an average of 0.1 in of precipitation.

View full climate insights for San Juan →