Today, 12 September, Saturday, in Constanţa (Romania): partly cloudy, warm. During the day the air will warm up to +25°, at night around +21°. Wind up to 15 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 +24° — great for swimming. The sun will rise at 06:40 and set at 19:21 — daylight lasts 13 hours.
Hourly weather in Constanţa
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0%11
0%12
0%13
0%14
0%15
0%16
0%17
0%18
0%19
0%20
0%21
0%22
0%23
0%00
0%01
0%02
0%03
20%04
58%05
80%06
💧 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 Constanţa 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 12.9
☁️
+21°+25°
Morning
🌤️
+21°
Day
☁️
+25°
Evening
🌇
+23°
Night
🌙
+21°
Overcast · precipitation 0% · wind up to 15 km/h. 😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.
▶
Tomorrow 13.9
🌦️
💧 98%
+16°+21°
Morning
🌦️
+17°
Day
🌦️
+21°
Evening
🌇
+18°
Night
🌙
+16°
Rain showers · precipitation 98% · wind up to 18 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Mon 14.9
☁️
💧 3%
+15°+22°
Morning
☁️
+18°
Day
☁️
+22°
Evening
🌇
+20°
Night
🌙
+15°
Overcast · precipitation 3% · wind up to 24 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Tue 15.9
☁️
+16°+22°
Morning
☁️
+18°
Day
☁️
+22°
Evening
🌇
+21°
Night
🌙
+16°
Overcast · precipitation 0% · wind up to 11 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Wed 16.9
☁️
+17°+23°
Morning
☁️
+19°
Day
☁️
+23°
Evening
🌇
+22°
Night
🌙
+17°
Overcast · precipitation 0% · wind up to 11 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Thu 17.9
☁️
💧 2%
+14°+24°
Morning
☁️
+18°
Day
☁️
+24°
Evening
🌇
+22°
Night
🌙
+14°
Overcast · precipitation 2% · wind up to 14 km/h. 😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.
▶
Fri 18.9
⛅
💧 5%
+17°+24°
Morning
⛅
+20°
Day
⛅
+24°
Evening
🌇
+22°
Night
🌙
+17°
Partly cloudy · precipitation 5% · wind up to 16 km/h. 😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.
▶
Sat 19.9
☁️
💧 21%
+18°+24°
Morning
☁️
+20°
Day
☁️
+24°
Evening
🌇
+23°
Night
🌙
+18°
Overcast · precipitation 21% · wind up to 15 km/h. 😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.
▶
Sun 20.9
🌦️
💧 11%
+20°+24°
Morning
🌦️
+21°
Day
🌦️
+24°
Evening
🌇
+23°
Night
🌙
+20°
Drizzle · precipitation 11% · wind up to 17 km/h. 😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.
▶
Mon 21.9
⛅
💧 7%
+19°+24°
Morning
⛅
+21°
Day
⛅
+24°
Evening
🌇
+23°
Night
🌙
+19°
Partly cloudy · precipitation 7% · wind up to 11 km/h. 😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.
▶
Tue 22.9
☀️
💧 8%
+18°+24°
Morning
☀️
+20°
Day
☀️
+24°
Evening
🌇
+23°
Night
🌙
+18°
Clear · precipitation 8% · wind up to 18 km/h. 😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.
▶
Wed 23.9
🌤️
💧 4%
+19°+24°
Morning
🌤️
+21°
Day
🌤️
+24°
Evening
🌇
+23°
Night
🌙
+19°
Mostly clear · precipitation 4% · wind up to 22 km/h. 😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.
▶
Thu 24.9
🌦️
💧 11%
+14°+25°
Morning
🌦️
+18°
Day
🌦️
+25°
Evening
🌇
+22°
Night
🌙
+14°
Drizzle · precipitation 11% · wind up to 25 km/h. 😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.
▶
Fri 25.9
🌦️
💧 14%
+13°+19°
Morning
🌦️
+15°
Day
🌦️
+19°
Evening
🌇
+18°
Night
🌙
+13°
Drizzle · precipitation 14% · wind up to 22 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
80 / 100
for sea and sun · Excellent
🏊 Swimming
88 / 100
water 24° · Excellent
🏃 Running
68 / 100
comfort for running · Good
🧴 UV
0%
moderate · low
☂️ Rain
0%
unlikely · low
✨ Stars
88 / 100
evening visibility · Excellent
🧺 Laundry drying
57 / 100
will dry outside · Average
🚗 Car wash
95 / 100
no rain expected · Excellent
🌫️ Air quality and pollen
22
Good air
European AQI
PM2.5: 5PM10: 8O₃: 64NO₂: 9pollen: low
The air is clean — you can walk and exercise outside.
🌅 Sun, moon and sea
Sunrise
06:40
Sunset
19:21
Golden hour
18:43
Daylight
13 h (-3 min vs yesterday)
Sea temperature
+24°
🌊 calm, waves 0.5 m.
Constanţa 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.
+5°
-1°
Jan
+6°
+0°
Feb
+10°
+3°
Mar
+14°
+7°
Apr
+20°
+12°
May
+24°
+17°
Jun
+27°
+20°
Jul
+27°
+20°
Aug
+22°
+16°
Sep
+17°
+11°
Oct
+11°
+6°
Nov
+6°
+1°
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
+5°
-1°
+8°
41 mm
Cold: +5° by day, down to -1° at night — dress warmly. ❄️ a warm jacket, a hat, non-slip shoes. The water is cold (+8°) — swimming is for the brave. This is the coldest month of the year.
February
+6°
+0°
+6°
33 mm
Winter weather: about +6° daytime, you need a warm coat and hat. 🧣 a warmer jacket. The water is cold (+6°) — swimming is for the brave.
March
+10°
+3°
+7°
42 mm
A cold month: +10° by day, long walks get uncomfortable. 🧥 a warm jacket. The water is cold (+7°) — swimming is for the brave.
April
+14°
+7°
+11°
39 mm
Cool: around +14° by day, you'll need a warm layer. 🧥 a warm jacket. The water is cold (+11°) — swimming is for the brave.
May
+20°
+12°
+15°
49 mm
Ideal weather: +20° daytime — neither hot nor cold. 🙂 a sweater for the evening. The water is cold (+15°) — swimming is for the brave.
June
+24°
+17°
+21°
58 mm
The most pleasant season: +24° by day, comfortable all day long. 😊 light summer clothing. Sea at +21° — swimmable, refreshing. The longest daylight hours of the year — more time for everything.
July
+27°
+20°
+25°
41 mm
Warm and comfortable: +27° by day, +20° at night. 😊 light summer clothing. Water at +25° — great for swimming. Weather-wise, one of the three best months to visit.
August
+27°
+20°
+25°
36 mm
Gentle warmth — about +27° daytime, great walking weather. 😊 light summer clothing. Water at +25° — great for swimming. This is the hottest month of the year in Constanţa.
September
+22°
+16°
+24°
50 mm
The most pleasant season: +22° by day, comfortable all day long. 🙂 a sweater for the evening. Water at +24° — great for swimming.
October
+17°
+11°
+19°
44 mm
Cool: around +17° by day, you'll need a warm layer. 🙂 a sweater for the evening. Sea at +19° — swimmable, refreshing.
November
+11°
+6°
+14°
42 mm
A fresh month — +11° daytime, take a jacket for walks. 🧥 a warm jacket. The water is cold (+14°) — swimming is for the brave.
December
+6°
+1°
+10°
43 mm
A cold month: +6° by day, long walks get uncomfortable. 🧣 a warmer jacket. The water is cold (+10°) — swimming is for the brave. The shortest daylight of the year — it gets dark early.
When to visit Constanţa
✅ Recommended time to visit
🌟 Best time: June, July, August
Daytime air+24…+27°
Sea temperature+21…+25°
Precipitationoften
Why: comfortable +24…+27° by day, little rain.
⚠️ Doable, with caveats
🌤️ Shoulder season: January, April, May, September, October, November
Daytime air+5…+22°
Sea temperature+8…+24°
Precipitationoften
Why: cool (+5…+22°) — not beach season, but great for city sights and museums.
🔴 Not the best time
❄️ Cold season: February, March, December
Daytime air+6…+10°
Sea temperature+6…+10°
Precipitationoften
Why: cold and dark (+6…+10° by day, 9 h of daylight) — only if frost and short days don’t put you off.
Bottom line: the best time to visit Constanţa is June – August, and the most comfortable months are June, July, August. The toughest months to visit are February, March, December: cold and short days.
🌡️ Today vs the climate normal
Today's high
+25°
Normal for September
+22°
Deviation
3° warmer than normal
A year ago on this day
+23°
Record for this date
+29° (2017)
The normal, “a year ago” and the record come from the weather archive since 1940 (Open-Meteo / ERA5).
Weather archive for Constanţa
📅 See what the weather was like on any day since 1940. For example: “what was the weather on March 2, 2021”.