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Weather in San Juan — today

Tomorrow Day after tomorrow 3 days Week 14 days Month forecast Weather archive

Now in San Juan

🌤️

+30°

Mostly clear

Feels like +33° · humidity 77%

Today 28.7: +31° / +26°

🕐 17:25

Wind

24 km/h

UV index

Air (AQI)

18 · Excellent

Precipitation

39%

Humidity

77%

Pressure

1015 hPa

Sunrise / sunset

06:01 / 19:00

Sea temperature

🌊 +29°

👕 What to wear today

Warm — a T-shirt and light trousers or shorts.

💨 WindyFeels warmer by 3°

Weather for an activity:

🎣 fishing 🏖️ the beach 🏃 a run 📸 a photo shoot 🚶 a walk

Detailed weather information for San Juan

Today, 28 July, Tuesday, in San Juan (Puerto Rico): cloudy, light rain in places, hot. During the day the air will warm up to +31°, at night around +26°. Wind up to 25 km/h. Brief rain is possible — an umbrella won't hurt. Light summer clothing will do — a T-shirt and shorts or light trousers. The sea has warmed up to +29° — great for swimming. The sun will rise at 06:01 and set at 19:00 — daylight lasts 13 hours.

Hourly weather in San Juan

💧 The bars at the bottom show the hourly precipitation probability. Shaded areas of the chart are the dark hours (before sunrise 🌅 and after sunset 🌇).

Weather in San Juan for 14 days

Tap a day to expand it by time of day and open the full forecast. The bar shows the range from the night low (left) to the day high (right).

▶

Today 28.7

🌦️

💧 39%

+26° +31°

Morning

🌦️

+28°

Day

🌦️

+31°

Evening

🌇

+30°

Night

🌙

+26°

Drizzle · precipitation 39% · wind up to 25 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Tomorrow 29.7

⛈️

💧 100%

+27° +30°

Morning

⛅

+28°

Day

⛈️

+30°

Evening

🌇

+29°

Night

🌙

+27°

Thunderstorm · precipitation 100% · wind up to 23 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Thu 30.7

☁️

💧 30%

+27° +30°

Morning

☁️

+28°

Day

☁️

+30°

Evening

🌇

+29°

Night

🌙

+27°

Overcast · precipitation 30% · wind up to 29 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Fri 31.7

⛈️

💧 97%

+27° +29°

Morning

⛈️

+28°

Day

⛈️

+29°

Evening

🌇

+29°

Night

🌙

+27°

Thunderstorm · precipitation 97% · wind up to 25 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Sat 1.8

🌦️

💧 66%

+26° +30°

Morning

🌦️

+27°

Day

🌦️

+30°

Evening

🌇

+29°

Night

🌙

+26°

Drizzle · precipitation 66% · wind up to 22 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Sun 2.8

⛈️

💧 83%

+26° +29°

Morning

⛈️

+27°

Day

⛈️

+29°

Evening

🌇

+28°

Night

🌙

+26°

Thunderstorm · precipitation 83% · wind up to 24 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Mon 3.8

🌦️

💧 63%

+26° +29°

Morning

🌦️

+27°

Day

🌦️

+29°

Evening

🌇

+28°

Night

🌙

+26°

Drizzle · precipitation 63% · wind up to 25 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Tue 4.8

🌦️

💧 51%

+27° +28°

Morning

🌦️

+27°

Day

🌦️

+28°

Evening

🌇

+28°

Night

🌙

+27°

Drizzle · precipitation 51% · wind up to 26 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Wed 5.8

🌦️

💧 89%

+26° +30°

Morning

🌦️

+27°

Day

🌦️

+30°

Evening

🌇

+29°

Night

🌙

+26°

Drizzle · precipitation 89% · wind up to 25 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Thu 6.8

🌦️

💧 53%

+26° +30°

Morning

🌦️

+27°

Day

🌦️

+30°

Evening

🌇

+29°

Night

🌙

+26°

Drizzle · precipitation 53% · wind up to 25 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Fri 7.8

🌤️

💧 36%

+27° +29°

Morning

🌤️

+28°

Day

🌤️

+29°

Evening

🌇

+29°

Night

🌙

+27°

Mostly clear · precipitation 36% · wind up to 29 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Sat 8.8

🌦️

💧 75%

+27° +29°

Morning

🌦️

+28°

Day

🌦️

+29°

Evening

🌇

+29°

Night

🌙

+27°

Drizzle · precipitation 75% · wind up to 29 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Sun 9.8

🌦️

💧 61%

+28° +29°

Morning

🌦️

+28°

Day

🌦️

+29°

Evening

🌇

+29°

Night

🌙

+28°

Drizzle · precipitation 61% · wind up to 30 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Mon 10.8

🌦️

💧 57%

+28° +29°

Morning

🌦️

+28°

Day

🌦️

+29°

Evening

🌇

+29°

Night

🌙

+28°

Drizzle · precipitation 57% · wind up to 31 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

🗺️ Precipitation radar

Precipitation radar (RainViewer) over a clean base map — updates every 5–10 minutes. Colours show nearby precipitation; if there is none, the map is simply clear — that is normal. Zoom with + / −.

Rain intensity:lightmoderateheavy

🎯 What to do in this weather — indices of the day

Comfort score from 0 (bad) to 100 (excellent), calculated from the day's weather. For “rain” and “UV” a percentage/risk level is shown.

🏖️ Beach

59 / 100

for sea and sun · Average

🏊 Swimming

43 / 100

water 29° · Average

🏃 Running

4 / 100

comfort for running · Bad

🧴 UV

27%

moderate · low

☂️ Rain

39%

possible · moderate

✨ Stars

61 / 100

evening visibility · Average

🧺 Laundry drying

25 / 100

will dry outside · So-so

🚗 Car wash

48 / 100

no rain expected · Average

🌫️ Air quality

Excellent air

European AQI

PM2.5: 14PM10: 34O₃: 44NO₂: 0

The air is clean — you can walk and exercise outside.

🌅 Sun, moon and sea

Sunrise

06:01

Sunset

19:00

Golden hour

18:30

Daylight

13 h (-1 min vs yesterday)

Sea temperature

+29°

🌊 slight, waves 0.7 m.

San Juan climate by month

Long-term averages. Hover over a bar for details. The forecast for a specific month is a combination of the climate normal and the model forecast for the coming weeks.

+28°

+21°

Jan

+28°

+21°

Feb

+29°

+21°

Mar

+30°

+22°

Apr

+30°

+23°

May

+31°

+24°

Jun

+31°

+25°

Jul

+31°

+25°

Aug

+31°

+24°

Sep

+30°

+24°

Oct

+29°

+23°

Nov

+28°

+22°

Dec

swipe sideways →

Bar color shows temperature:frostcoolcomfortablewarmhot— best months to visit

Month	Day	Night	Sea	Precipitation	What to pack and what makes the month notable (events, nuances)
January	+28°	+21°	+27°	43 mm	Gentle warmth — about +28° daytime, great walking weather. 😊 light summer clothing. Water at +27° — great for swimming. This is the coldest month of the year.
February	+28°	+21°	+27°	31 mm	A comfortable month: +28° by day without exhausting heat. 😊 light summer clothing. Water at +27° — great for swimming. Weather-wise, one of the three best months to visit.
March	+29°	+21°	+27°	41 mm	Warm and comfortable: +29° by day, +21° at night. 😊 light summer clothing. Water at +27° — great for swimming.
April	+30°	+22°	+27°	73 mm	Gentle warmth — about +30° daytime, great walking weather. Frequent rain (73 mm over the month) — keep indoor backup plans. 😊 light summer clothing. Water at +27° — great for swimming.
May	+30°	+23°	+28°	108 mm	A comfortable month: +30° by day without exhausting heat. One of the wettest months (108 mm): downpours can derail plans. 😊 light summer clothing. Water at +28° — great for swimming.
June	+31°	+24°	+29°	62 mm	Warm and comfortable: +31° by day, +24° at night. It's a rainy month (62 mm) — an umbrella is a must. 😊 light summer clothing. Water at +29° — great for swimming. The longest daylight hours of the year — more time for everything.
July	+31°	+25°	+29°	68 mm	Gentle warmth — about +31° daytime, great walking weather. Frequent rain (68 mm over the month) — keep indoor backup plans. 😊 light summer clothing. Water at +29° — great for swimming.
August	+31°	+25°	+30°	82 mm	A comfortable month: +31° by day without exhausting heat. One of the wettest months (82 mm): downpours can derail plans. 😊 light summer clothing. The sea is +30° — like a warm bath. This is the hottest month of the year in San Juan.
September	+31°	+24°	+30°	128 mm	Warm and comfortable: +31° by day, +24° at night. It's a rainy month (128 mm) — an umbrella is a must. 😊 light summer clothing. The sea is +30° — like a warm bath. Statistically the wettest month of the year.
October	+30°	+24°	+30°	114 mm	Gentle warmth — about +30° daytime, great walking weather. Frequent rain (114 mm over the month) — keep indoor backup plans. 😊 light summer clothing. The sea is +30° — like a warm bath. The sea is at its warmest of the year this month.
November	+29°	+23°	+29°	105 mm	A comfortable month: +29° by day without exhausting heat. One of the wettest months (105 mm): downpours can derail plans. 😊 light summer clothing. Water at +29° — great for swimming.
December	+28°	+22°	+28°	48 mm	Warm and comfortable: +28° by day, +22° at night. 😊 light summer clothing. Water at +28° — great for swimming. The shortest daylight of the year — it gets dark early.

When to visit San Juan

✅ Recommended time to visit

🌟 Best time: January, February, December

Daytime air+28…+28°

Sea temperature+27…+28°

Precipitationoften

Why: comfortable +28…+28° by day, little rain, warm sea (+27…28°).

⚠️ Doable, with caveats

🌤️ Shoulder season: March, April, June, July, August, November

Daytime air+29…+31°

Sea temperature+27…+30°

Precipitationoften

Why: noticeable rain risk (41–105 mm/month) — pack an umbrella and backup plans.

🔴 Not the best time

🌤️ Shoulder season: May, September, October

Daytime air+30…+31°

Sea temperature+28…+30°

Precipitationoften

Why: the rainy season (108–128 mm/month) — downpours almost daily.

Bottom line: the best time to visit San Juan is December – February, and the most comfortable months are January, February, December. The toughest months to visit are May, September, October: frequent rain.