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Weather in San Diego — today

Heat warning

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

Now in San Diego

⛅

+22°

Partly cloudy

Feels like +25° · humidity 93%

Tomorrow 12.9: +25° / +20°

🕐 22:25

Wind

9 km/h

UV index

Air (AQI)

35 · Good

Precipitation

Humidity

93%

Pressure

1011 hPa

Sunrise / sunset

06:30 / 18:58

Sea temperature

🌊 +23°

👕 What to wear today

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

Feels warmer by 3°

Weather for an activity:

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

Detailed weather information for San Diego

Tomorrow, 12 September, Saturday, in San Diego (United States): partly cloudy, warm. During the day the air will warm up to +25°, at night around +20°. Wind up to 12 km/h. No precipitation expected, you won't need an umbrella. Light summer clothing will do — a T-shirt and shorts or light trousers. The sea has warmed up to +23° — great for swimming. The sun will rise at 06:30 and set at 18:58 — daylight lasts 12 hours.

Hourly weather in San Diego

💧 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 Diego 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).

▶

Tomorrow 12.9

🌫️

💧 1%

+20° +25°

Morning

🌫️

+21°

Day

🌫️

+25°

Evening

🌇

+21°

Night

🌙

+20°

Fog · precipitation 1% · wind up to 12 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Sun 13.9

☁️

💧 2%

+19° +26°

Morning

⛅

+20°

Day

☁️

+26°

Evening

🌇

+23°

Night

🌙

+19°

Overcast · precipitation 2% · wind up to 13 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Mon 14.9

☀️

💧 1%

+21° +24°

Morning

☀️

+22°

Day

☀️

+24°

Evening

🌇

+23°

Night

🌙

+21°

Clear · precipitation 1% · wind up to 16 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Tue 15.9

☀️

+20° +23°

Morning

☀️

+21°

Day

☀️

+23°

Evening

🌇

+22°

Night

🌙

+20°

Clear · precipitation 0% · wind up to 16 km/h.
🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.

▶

Wed 16.9

☀️

+21° +24°

Morning

☀️

+22°

Day

☀️

+24°

Evening

🌇

+23°

Night

🌙

+21°

Clear · precipitation 0% · wind up to 15 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Thu 17.9

☀️

+21° +25°

Morning

☀️

+22°

Day

☀️

+25°

Evening

🌇

+24°

Night

🌙

+21°

Clear · precipitation 0% · wind up to 18 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Fri 18.9

☀️

💧 1%

+22° +27°

Morning

☀️

+24°

Day

☀️

+27°

Evening

🌇

+26°

Night

🌙

+22°

Clear · precipitation 1% · wind up to 18 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Sat 19.9

☀️

💧 1%

+22° +26°

Morning

☀️

+23°

Day

☀️

+26°

Evening

🌇

+25°

Night

🌙

+22°

Clear · precipitation 1% · wind up to 13 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Sun 20.9

☀️

💧 1%

+22° +26°

Morning

☀️

+23°

Day

☀️

+26°

Evening

🌇

+25°

Night

🌙

+22°

Clear · precipitation 1% · wind up to 13 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Mon 21.9

☀️

💧 5%

+22° +26°

Morning

☀️

+23°

Day

☀️

+26°

Evening

🌇

+25°

Night

🌙

+22°

Clear · precipitation 5% · wind up to 13 km/h.
😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.

▶

Tue 22.9

☁️

💧 11%

+21° +23°

Morning

☁️

+22°

Day

☁️

+23°

Evening

🌇

+23°

Night

🌙

+21°

Overcast · precipitation 11% · wind up to 15 km/h.
🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.

▶

Wed 23.9

☁️

💧 9%

+21° +23°

Morning

☁️

+22°

Day

☁️

+23°

Evening

🌇

+23°

Night

🌙

+21°

Overcast · precipitation 9% · wind up to 16 km/h.
🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.

▶

Thu 24.9

☁️

💧 10%

+21° +24°

Morning

☁️

+22°

Day

☁️

+24°

Evening

🌇

+23°

Night

🌙

+21°

Overcast · precipitation 10% · wind up to 15 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

79 / 100

for sea and sun · Good

🏊 Swimming

81 / 100

water 23° · Excellent

🏃 Running

69 / 100

comfort for running · Good

🧴 UV

moderate · low

☂️ Rain

unlikely · low

✨ Stars

87 / 100

evening visibility · Excellent

🧺 Laundry drying

53 / 100

will dry outside · Average

🚗 Car wash

94 / 100

no rain expected · Excellent

🌫️ Air quality

Good air

European AQI

PM2.5: 12PM10: 17O₃: 54NO₂: 20

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

🌅 Sun, moon and sea

Sunrise

06:30

Sunset

18:58

Golden hour

18:25

Daylight

12 h (-2 min vs yesterday)

Sea temperature

+23°

🌊 slight, waves 0.9 m.

San Diego 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.

+17°

+9°

Jan

+17°

+9°

Feb

+18°

+11°

Mar

+19°

+12°

Apr

+20°

+14°

May

+22°

+15°

Jun

+24°

+17°

Jul

+25°

+18°

Aug

+25°

+18°

Sep

+23°

+15°

Oct

+20°

+12°

Nov

+17°

+9°

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	+17°	+9°	+15°	58 mm	A fresh month — +17° daytime, take a jacket for walks. 🙂 a sweater for the evening. The water is cold (+15°) — swimming is for the brave.
February	+17°	+9°	+15°	73 mm	Cool weather: +17° by day, noticeably colder in the evening. One of the wettest months (73 mm): downpours can derail plans. 🙂 a sweater for the evening. The water is cold (+15°) — swimming is for the brave. This is the coldest month of the year.
March	+18°	+11°	+16°	48 mm	Cool: around +18° by day, you'll need a warm layer. 🙂 a sweater for the evening. The water is cold (+16°) — swimming is for the brave.
April	+19°	+12°	+17°	24 mm	Ideal weather: +19° daytime — neither hot nor cold. 🙂 a sweater for the evening. The water is cold (+17°) — swimming is for the brave.
May	+20°	+14°	+18°	10 mm	The most pleasant season: +20° by day, comfortable all day long. 🙂 a sweater for the evening. Sea at +18° — swimmable, refreshing.
June	+22°	+15°	+19°	2 mm	One of the best times to visit: +22° by day, fresh nights. 🙂 a sweater for the evening. Sea at +19° — swimmable, refreshing. One of the driest months — rain is very unlikely.
July	+24°	+17°	+21°	2 mm	Ideal weather: +24° daytime — neither hot nor cold. 😊 light summer clothing. Sea at +21° — swimmable, refreshing. Weather-wise, one of the three best months to visit.
August	+25°	+18°	+21°	2 mm	The most pleasant season: +25° by day, comfortable all day long. 😊 light summer clothing. Sea at +21° — swimmable, refreshing. This is the hottest month of the year in San Diego.
September	+25°	+18°	+21°	4 mm	One of the best times to visit: +25° by day, fresh nights. 😊 light summer clothing. Sea at +21° — swimmable, refreshing. Weather-wise, one of the three best months to visit.
October	+23°	+15°	+19°	15 mm	Ideal weather: +23° daytime — neither hot nor cold. 🙂 a sweater for the evening. Sea at +19° — swimmable, refreshing.
November	+20°	+12°	+17°	23 mm	The most pleasant season: +20° by day, comfortable all day long. 🙂 a sweater for the evening. The water is cold (+17°) — swimming is for the brave.
December	+17°	+9°	+16°	49 mm	Cool: around +17° by day, you'll need a warm layer. 🙂 a sweater for the evening. The water is cold (+16°) — swimming is for the brave. The shortest daylight of the year — it gets dark early.

When to visit San Diego

✅ Recommended time to visit

🌟 Best time: July, August, September

Daytime air+24…+25°

Sea temperature+21…+21°

Precipitationalmost none

Why: comfortable +24…+25° by day, little rain.

⚠️ Doable, with caveats

🌤️ Shoulder season: March, April, May, June, October, November

Daytime air+18…+23°

Sea temperature+16…+19°

Precipitationrare

Why: cool (+18…+23°) — not beach season, but great for city sights and museums.

🔴 Not the best time

🌤️ Shoulder season: January, February, December

Daytime air+17…+17°

Sea temperature+15…+16°

Precipitationoften

Bottom line: the best time to visit San Diego is July – September, and the most comfortable months are July, August, September. The toughest months to visit are January, February, December: cool and damp.