Today, 9 September, Wednesday, in Saint Petersburg (Russia): cloudy, light rain in places, moderately warm. During the day the air will warm up to +21°, at night around +15°. Due to the wind it feels like +14°. Wind up to 18 km/h. High chance of rain — be sure to take an umbrella or a raincoat. A T-shirt is comfortable during the day, but take a light sweater or windbreaker for the evening. The water is cold, +17° — too chilly for swimming. The sun will rise at 06:12 and set at 19:38 — daylight lasts 13 hours.
Hourly weather in Saint Petersburg
38%05
12%06
10%07
18%08
24%09
21%10
16%11
18%12
36%13
61%14
76%15
70%16
54%17
43%18
42%19
46%20
53%21
65%22
80%23
88%00
82%01
69%02
55%03
39%04
💧 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 Saint Petersburg 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 9.9
🌦️
💧 92%
+15°+21°
Morning
🌦️
+15°
Day
🌦️
+21°
Evening
🌇
+20°
Night
🌙
+15°
Light rain · precipitation 92% · wind up to 18 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Tomorrow 10.9
🌦️
💧 100%
+14°+19°
Morning
🌦️
+17°
Day
🌦️
+19°
Evening
🌇
+15°
Night
🌙
+14°
Light rain · precipitation 100% · wind up to 15 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Fri 11.9
🌦️
💧 79%
+12°+15°
Morning
🌦️
+13°
Day
🌦️
+15°
Evening
🌇
+14°
Night
🌙
+12°
Rain showers · precipitation 79% · wind up to 18 km/h. 🧥 Cool. You'll need a warm jacket; it can get chilly in the evening.
▶
Sat 12.9
🌦️
💧 43%
+12°+16°
Morning
🌦️
+13°
Day
🌦️
+16°
Evening
🌇
+15°
Night
🌙
+12°
Drizzle · precipitation 43% · wind up to 20 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Sun 13.9
🌦️
💧 39%
+13°+16°
Morning
🌦️
+14°
Day
🌦️
+16°
Evening
🌇
+15°
Night
🌙
+13°
Drizzle · precipitation 39% · wind up to 20 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Mon 14.9
🌦️
💧 38%
+13°+16°
Morning
🌦️
+14°
Day
🌦️
+16°
Evening
🌇
+15°
Night
🌙
+13°
Drizzle · precipitation 38% · wind up to 15 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Tue 15.9
🌦️
💧 33%
+12°+19°
Morning
🌦️
+15°
Day
🌦️
+19°
Evening
🌇
+17°
Night
🌙
+12°
Drizzle · precipitation 33% · wind up to 8 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Wed 16.9
🌦️
💧 24%
+12°+20°
Morning
🌦️
+15°
Day
🌦️
+20°
Evening
🌇
+18°
Night
🌙
+12°
Drizzle · precipitation 24% · wind up to 8 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Thu 17.9
🌦️
💧 38%
+12°+15°
Morning
🌦️
+13°
Day
🌦️
+15°
Evening
🌇
+14°
Night
🌙
+12°
Drizzle · precipitation 38% · wind up to 7 km/h. 🧥 Cool. You'll need a warm jacket; it can get chilly in the evening.
▶
Fri 18.9
🌦️
💧 31%
+10°+17°
Morning
🌦️
+13°
Day
🌦️
+17°
Evening
🌇
+15°
Night
🌙
+10°
Drizzle · precipitation 31% · wind up to 4 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Sat 19.9
🌦️
💧 22%
+10°+16°
Morning
🌦️
+12°
Day
🌦️
+16°
Evening
🌇
+15°
Night
🌙
+10°
Drizzle · precipitation 22% · wind up to 6 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Sun 20.9
🌦️
💧 20%
+10°+14°
Morning
🌦️
+11°
Day
🌦️
+14°
Evening
🌇
+13°
Night
🌙
+10°
Drizzle · precipitation 20% · wind up to 17 km/h. 🧥 Cool. You'll need a warm jacket; it can get chilly in the evening.
▶
Mon 21.9
🌦️
💧 20%
+12°+15°
Morning
🌦️
+13°
Day
🌦️
+15°
Evening
🌇
+14°
Night
🌙
+12°
Drizzle · precipitation 20% · wind up to 21 km/h. 🧥 Cool. You'll need a warm jacket; it can get chilly in the evening.
▶
Tue 22.9
🌦️
💧 25%
+9°+17°
Morning
🌦️
+12°
Day
🌦️
+17°
Evening
🌇
+15°
Night
🌙
+9°
Drizzle · precipitation 25% · wind up to 9 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
🗺️ 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
0 / 100
for sea and sun · Bad
🏊 Swimming
0 / 100
water 17° · Bad
🏃 Running
0 / 100
comfort for running · Bad
🧴 UV
0%
moderate · low
☂️ Rain
92%
likely · high
✨ Stars
24 / 100
evening visibility · So-so
🧺 Laundry drying
0 / 100
will dry outside · Bad
🚗 Car wash
0 / 100
better to wait · Bad
🌫️ Air quality and pollen
33
Good air
European AQI
PM2.5: 8PM10: 11O₃: 48NO₂: 20pollen: low
The air is clean — you can walk and exercise outside.
🌅 Sun, moon and sea
Sunrise
06:12
Sunset
19:38
Golden hour
18:43
Daylight
13 h (-6 min vs yesterday)
Sea temperature
+17°
🌊 calm, waves 0.2 m.
🌌 Northern lights: Kp index 6 — faint aurora possible outside the city after midnight. Data: NOAA SWPC.
Saint Petersburg 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.
-4°
-8°
Jan
-4°
-8°
Feb
+0°
-5°
Mar
+7°
+0°
Apr
+14°
+6°
May
+19°
+11°
Jun
+22°
+15°
Jul
+20°
+13°
Aug
+14°
+9°
Sep
+7°
+3°
Oct
+2°
-1°
Nov
-2°
-5°
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
-4°
-8°
+0°
42 mm
Freezing: -4° by day, -8° at night — full winter gear, ice underfoot is common. ❄️ a warm jacket, a hat, non-slip shoes. The water is cold (+0°) — swimming is for the brave. Christmas markets; the Hermitage without summer queues.
February
-4°
-8°
+0°
33 mm
Proper winter: -4° daytime, frost and short days. ❄️ a warm jacket, a hat, non-slip shoes. The water is cold (+0°) — swimming is for the brave. This is the coldest month of the year. Snowiest month; short walks, long museums.
March
+0°
-5°
+0°
36 mm
The coldest stretch: +0° by day, full winter clothing required. ❄️ a warm jacket, a hat, non-slip shoes. The water is cold (+0°) — swimming is for the brave. Winter retreats; the Neva still under ice.
April
+7°
+0°
+3°
40 mm
Cold: +7° by day, down to +0° at night — dress warmly. 🧣 a warmer jacket. The water is cold (+3°) — swimming is for the brave. Ice drift on the Neva; the city thaws.
May
+14°
+6°
+11°
51 mm
A fresh month — +14° daytime, take a jacket for walks. 🧥 a warm jacket. The water is cold (+11°) — swimming is for the brave. City Day on 27 May; bright evenings begin.
June
+19°
+11°
+19°
65 mm
The most pleasant season: +19° by day, comfortable all day long. One of the wettest months (65 mm): downpours can derail plans. 🙂 a sweater for the evening. Sea at +19° — swimmable, refreshing. The longest daylight hours of the year — more time for everything. White Nights and the Scarlet Sails show late in June — peak season.
July
+22°
+15°
+22°
67 mm
One of the best times to visit: +22° by day, fresh nights. It's a rainy month (67 mm) — an umbrella is a must. 🙂 a sweater for the evening. Water at +22° — great for swimming. This is the hottest month of the year in Saint Petersburg. Bridges rise under pale skies; Peterhof fountains.
August
+20°
+13°
+22°
73 mm
Ideal weather: +20° daytime — neither hot nor cold. Frequent rain (73 mm over the month) — keep indoor backup plans. 🙂 a sweater for the evening. Water at +22° — great for swimming. Statistically the wettest month of the year. Warm late summer; suburban palaces quieter on weekdays.
September
+14°
+9°
+18°
55 mm
Cool weather: +14° by day, noticeably colder in the evening. 🧥 a warm jacket. Sea at +18° — swimmable, refreshing. Golden autumn in Pushkin and Pavlovsk parks.
October
+7°
+3°
+9°
62 mm
Cold: +7° by day, down to +3° at night — dress warmly. It's a rainy month (62 mm) — an umbrella is a must. 🧣 a warmer jacket. The water is cold (+9°) — swimming is for the brave. Rainy season and theatre premieres.
November
+2°
-1°
+3°
57 mm
Proper winter: +2° daytime, frost and short days. ❄️ a warm jacket, a hat, non-slip shoes. The water is cold (+3°) — swimming is for the brave. Darkest month — Hermitage and Mariinsky time.
December
-2°
-5°
+0°
49 mm
The coldest stretch: -2° by day, full winter clothing required. ❄️ a warm jacket, a hat, non-slip shoes. The water is cold (+0°) — swimming is for the brave. The shortest daylight of the year — it gets dark early. Nevsky Prospekt aglow before New Year.
When to visit Saint Petersburg
✅ Recommended time to visit
🌟 Best time: June, July, August
Daytime air+19…+22°
Sea temperature+19…+22°
Precipitationoften
Featurewhite nights
Why: comfortable +19…+22° by day, little rain.
⚠️ Doable, with caveats
🌤️ Shoulder season: January, February, March, April, May, September
Daytime air-4…+14°
Sea temperature+0…+18°
Precipitationoften
Why: cool (-4…+14°) — not beach season, but great for city sights and museums.
🔴 Not the best time
❄️ Cold season: October, November, December
Daytime air-2…+7°
Sea temperature+0…+9°
Precipitationoften
Why: cold and dark (-2…+7° by day, 6 h of daylight) — only if frost and short days don’t put you off.
Bottom line: the best time to visit Saint Petersburg is June – August, and the most comfortable months are June, July, August. The toughest months to visit are October, November, December: cold and short days.
🌡️ Today vs the climate normal
Today's high
+21°
Normal for September
+14°
Deviation
7° warmer than normal
A year ago on this day
+23°
Record for this date
+24° (2024)
The normal, “a year ago” and the record come from the weather archive since 1940 (Open-Meteo / ERA5).
Weather archive for Saint Petersburg
📅 See what the weather was like on any day since 1940. For example: “what was the weather on March 2, 2021”.