San Juan

Current Weather

19°67°

Overcast

Feels Like: 18°65°

Min: 18°64°

Max: 23°74°

The next few hours will be overcast, with tomorrow reaching 22°C and dropping to 17°C. The coming days will be light rain throughout the day and possible thunderstorms in the afternoon.

Hourly Forecast
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Air Quality
13
Good

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

GoodHazardous
Daylight Hours

05:29

Sunrise

17:17

Sunset

11 hours 48 minutes of sunlight today
Moon

06:07

Moonrise

Daily Forecast

Sunday

18°64°
23°74°

Today

17°63°
22°71°

Tuesday

17°62°
23°73°

Wednesday

17°62°
23°74°

Thursday

16°61°
23°73°

Friday

17°63°
23°73°

Saturday

17°62°
23°74°

Sunday

17°62°
21°71°

Monday

16°62°
20°68°

Tuesday

17°63°
21°70°
UV Index
No protection needed
0Low
LowExtreme
Humidity
98%Very Humid
LowHigh
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Weather in San Juan tomorrow, October 12, 2026

Rain features in San Juan on October 12, 2026, so keep waterproofs handy through the day. The damp theme is strongest where shower chances rise. Morning plans should assume damp conditions, as rain chances climb toward 100% around 10:00. Cloud cover is also at its densest near 00:00 at roughly 95%.Rain features in San Juan on October 12, 2026, so keep waterproofs handy through the day. The damp theme is strongest where shower chances rise. Morning plans should assume damp conditions, as rain chances climb toward 100% around 10:00. Cloud cover is also at its densest near 00:00 at roughly 95%.

The day peaks near 22°C and cools toward 17°C. Expect humidity between 86% and 99%, most humid near 00:00. A lighter breeze peaks around 12:00 near 8 km/h.The day peaks near 71°F and cools toward 63°F. Expect humidity between 86% and 99%, most humid near 00:00. A lighter breeze peaks around 12:00 near 5 mph.

The second half of the day still looks unsettled, with rain probability around 100% by 12:00. Dense cloud near 97% at 17:00 keeps the feel grey. Visibility stays generally good near 13.4 km on average, though it can drop toward 5 km in thicker cloud or showers. Expect sunrise at 05:29, sunset at 17:17, and 11 hours 47 minutes of sunlight today overall.The second half of the day still looks unsettled, with rain probability around 100% by 12:00. Dense cloud near 97% at 17:00 keeps the feel grey. Visibility stays generally good near 8.3 mi on average, though it can drop toward 3.1 mi in thicker cloud or showers. Expect sunrise at 05:29, sunset at 17:17, and 11 hours 47 minutes of sunlight today overall.

In short, treat October 12, 2026 in San Juan as a damp day: pack covers, watch the wetter hours, and expect a high near 22°C.In short, treat October 12, 2026 in San Juan as a damp day: pack covers, watch the wetter hours, and expect a high near 71°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 30°C. The average temperature during this period is around 25°C.The warmest month in San Juan is March, with average high temperatures of 85°F. The average temperature during this period is around 76°F.

How cold does it get in San Juan?

The coldest month in San Juan is January, with average low temperatures of 20°C. The average temperature during this period is around 24°C.The coldest month in San Juan is January, with average low temperatures of 68°F. The average temperature during this period is around 75°F.

What is the wettest time of year in San Juan?

The wettest month in San Juan is October, with an average of 562 mm of precipitation.The wettest month in San Juan is October, with an average of 22.1 in of precipitation.

What is the driest time of year in San Juan?

The driest month in San Juan is February, with an average of 14 mm of precipitation.The driest month in San Juan is February, with an average of 0.6 in of precipitation.

View full climate insights for San Juan →