San Juan

Current Weather

27°80°

Light Rain

Feels Like: 31°88°

Min: 23°74°

Max: 27°81°

The next few hours will be mostly cloudy, with today reaching 27°C and dropping to 23°C. The coming days will be light rain throughout the day and possible thunderstorms until evening.

Hourly Forecast
27°80°27°81°27°81°27°81°27°81°27°81°26°79°25°78°24°76°24°76°24°75°24°75°24°74°23°74°23°74°23°74°23°73°23°73°23°73°23°73°23°73°24°75°25°77°26°79°
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Air Quality
18
Good

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

GoodHazardous
Daylight Hours

05:30

Sunrise

17:16

Sunset

11 hours 45 minutes of sunlight today
Moon

07:00

Moonrise

18:02

Moonset

Daily Forecast

Today

23°74°
27°81°

Tuesday

23°73°
30°86°

Wednesday

22°72°
30°85°

Thursday

23°73°
30°86°

Friday

23°73°
30°85°

Saturday

23°74°
29°84°

Sunday

23°73°
29°84°

Monday

22°72°
27°80°

Tuesday

23°73°
28°83°

Wednesday

23°73°
29°84°
UV Index
Seek shade during midday
7High
LowExtreme
Humidity
85%Humid
LowHigh
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Weather in San Juan today, October 12, 2026

Expect unsettled, showery conditions in San Juan on October 12, 2026 as rain moves through. The day opens on a wet note and needs flexible outdoor plans. Early hours look the most unsettled, with rain probability near 90% by 10:00. The thickest cloud arrives around 10:00, reaching about 85%.Expect unsettled, showery conditions in San Juan on October 12, 2026 as rain moves through. The day opens on a wet note and needs flexible outdoor plans. Early hours look the most unsettled, with rain probability near 90% by 10:00. The thickest cloud arrives around 10:00, reaching about 85%.

The day peaks near 27°C and cools toward 23°C. Relative humidity sits between 84% and 100%, reaching its peak around 23:00. A lighter breeze peaks around 10:00 near 12 km/h.The day peaks near 81°F and cools toward 74°F. Relative humidity sits between 84% and 100%, reaching its peak around 23:00. A lighter breeze peaks around 10:00 near 7 mph.

The second half of the day still looks unsettled, with rain probability around 98% by 13:00. Dense cloud near 86% at 22:00 keeps the feel grey. Visibility holds near 13.7 km, though it can fall to 7.2 km. Daylight runs from 05:30 to 17:16, lasting 11 hours 45 minutes of sunlight today.The second half of the day still looks unsettled, with rain probability around 98% by 13:00. Dense cloud near 86% at 22:00 keeps the feel grey. Visibility holds near 8.5 mi, though it can fall to 4.4 mi. Daylight runs from 05:30 to 17:16, lasting 11 hours 45 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 27°C.Taken together, San Juan looks wet enough on October 12, 2026 that flexible outdoor plans work best, with temperatures peaking near 81°F.

Frequently asked questions about weather in San Juan

How warm does it get in San Juan?

The warmest month in San Juan is May, with average high temperatures of 31°C. The average temperature during this period is around 27°C.The warmest month in San Juan is May, with average high temperatures of 88°F. The average temperature during this period is around 80°F.

How cold does it get in San Juan?

The coldest month in San Juan is January, with average low temperatures of 22°C. The average temperature during this period is around 24°C.The coldest month in San Juan is January, with average low temperatures of 71°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 320 mm of precipitation.The wettest month in San Juan is October, with an average of 12.6 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 51 mm of precipitation.The driest month in San Juan is March, with an average of 2 in of precipitation.

View full climate insights for San Juan →