San Juan

Current Weather

24°76°

Drizzle

Feels Like: 25°78°

Min: 19°66°

Max: 26°79°

The next few hours will be overcast, with today reaching 26°C and dropping to 18°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
14
Good

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

GoodHazardous
Daylight Hours

05:38

Sunrise

17:22

Sunset

11 hours 43 minutes of sunlight today
Moon

07:10

Moonrise

18:07

Moonset

Daily Forecast

Today

19°66°
26°79°

Tuesday

18°65°
26°79°

Wednesday

18°65°
26°79°

Thursday

18°65°
26°79°

Friday

19°67°
26°79°

Saturday

19°66°
24°76°

Sunday

19°66°
26°78°

Monday

19°66°
26°78°

Tuesday

19°66°
25°77°

Wednesday

19°66°
26°79°
UV Index
Seek shade during midday
7High
LowExtreme
Humidity
76%Humid
LowHigh
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Weather in San Juan today, October 12, 2026

San Juan looks damp on October 12, 2026, so plan for wet spells during the day. Early travel and outdoor time should assume rain can arrive quickly. Wetter spells lean into the morning, when rain odds reach about 100% near 10:00. Skies look heaviest around 10:00, with cover close to 87%.San Juan looks damp on October 12, 2026, so plan for wet spells during the day. Early travel and outdoor time should assume rain can arrive quickly. Wetter spells lean into the morning, when rain odds reach about 100% near 10:00. Skies look heaviest around 10:00, with cover close to 87%.

The temperature range runs from about 19°C up to 26°C. The air stays humid, with relative humidity between 71% and 99% and the peak around 20:00. Expect gentle winds, highest near 10:00 at 16 km/h.The temperature range runs from about 66°F up to 79°F. The air stays humid, with relative humidity between 71% and 99% and the peak around 20:00. Expect gentle winds, highest near 10:00 at 10 mph.

Through the afternoon wet weather remains a factor, with rain chances near 100% around 12:00. Cloud also stays substantial, close to 91% near 23:00. Visibility stays near 16.1 km. Daylight runs from 05:38 to 17:22, lasting 11 hours 43 minutes of sunlight today.Through the afternoon wet weather remains a factor, with rain chances near 100% around 12:00. Cloud also stays substantial, close to 91% near 23:00. Visibility stays near 10 mi. Daylight runs from 05:38 to 17:22, lasting 11 hours 43 minutes of sunlight today.

Taken together, San Juan looks wet enough on October 12, 2026 that flexible outdoor plans work best, with temperatures peaking near 26°C.Taken together, San Juan looks wet enough on October 12, 2026 that flexible outdoor plans work best, with temperatures peaking near 79°F.

Frequently asked questions about weather in San Juan

How warm does it get in San Juan?

The warmest month in San Juan is April, with average high temperatures of 31°C. The average temperature during this period is around 25°C.The warmest month in San Juan is April, with average high temperatures of 88°F. The average temperature during this period is around 77°F.

How cold does it get in San Juan?

The coldest month in San Juan is January, with average low temperatures of 17°C. The average temperature during this period is around 22°C.The coldest month in San Juan is January, with average low temperatures of 63°F. The average temperature during this period is around 71°F.

What is the wettest time of year in San Juan?

The wettest month in San Juan is October, with an average of 206 mm of precipitation.The wettest month in San Juan is October, with an average of 8.1 in of precipitation.

What is the driest time of year in San Juan?

The driest month in San Juan is March, with an average of 14 mm of precipitation.The driest month in San Juan is March, with an average of 0.5 in of precipitation.

View full climate insights for San Juan →