Today, 12 September, Saturday, in Rio de Janeiro (Brazil): cloudy, light rain in places, hot. During the day the air will warm up to +30°, at night around +22°. Due to the wind it feels like +26°. Wind up to 24 km/h. High chance of rain — be sure to take an umbrella or a raincoat. 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 05:52 and set at 17:45 — daylight lasts 12 hours.
Hourly weather in Rio de Janeiro
8%03
9%04
8%05
8%06
7%07
6%08
6%09
8%10
12%11
18%12
29%13
43%14
55%15
65%16
74%17
80%18
82%19
82%20
82%21
82%22
83%23
82%00
80%01
78%02
💧 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 Rio de Janeiro 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
🌦️
💧 83%
+22°+30°
Morning
🌤️
+25°
Day
🌦️
+30°
Evening
🌇
+22°
Night
🌙
+22°
Rain showers · precipitation 83% · wind up to 24 km/h. 😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.
▶
Tomorrow 13.9
🌦️
💧 96%
+20°+22°
Morning
🌦️
+21°
Day
🌦️
+22°
Evening
🌇
+20°
Night
🌙
+20°
Drizzle · precipitation 96% · wind up to 15 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Mon 14.9
🌦️
💧 92%
+20°+22°
Morning
🌦️
+21°
Day
🌦️
+22°
Evening
🌇
+22°
Night
🌙
+20°
Rain showers · precipitation 92% · wind up to 12 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Tue 15.9
🌦️
💧 86%
+19°+21°
Morning
🌦️
+20°
Day
🌦️
+21°
Evening
🌇
+21°
Night
🌙
+19°
Rain showers · precipitation 86% · wind up to 16 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Wed 16.9
🌦️
💧 65%
+19°+22°
Morning
🌦️
+20°
Day
🌦️
+22°
Evening
🌇
+21°
Night
🌙
+19°
Drizzle · precipitation 65% · wind up to 16 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Thu 17.9
🌦️
💧 73%
+18°+21°
Morning
🌦️
+19°
Day
🌦️
+21°
Evening
🌇
+20°
Night
🌙
+18°
Drizzle · precipitation 73% · wind up to 16 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Fri 18.9
🌦️
💧 31%
+19°+23°
Morning
🌦️
+20°
Day
🌦️
+23°
Evening
🌇
+22°
Night
🌙
+19°
Drizzle · precipitation 31% · wind up to 15 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Sat 19.9
⛅
💧 18%
+20°+26°
Morning
⛅
+22°
Day
⛅
+26°
Evening
🌇
+25°
Night
🌙
+20°
Partly cloudy · precipitation 18% · wind up to 18 km/h. 😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.
▶
Sun 20.9
☁️
💧 37%
+21°+28°
Morning
☁️
+24°
Day
☁️
+28°
Evening
🌇
+26°
Night
🌙
+21°
Overcast · precipitation 37% · wind up to 12 km/h. 😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.
▶
Mon 21.9
🌦️
💧 34%
+23°+30°
Morning
🌦️
+26°
Day
🌦️
+30°
Evening
🌇
+28°
Night
🌙
+23°
Rain showers · precipitation 34% · wind up to 21 km/h. 😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.
▶
Tue 22.9
🌦️
💧 42%
+21°+25°
Morning
🌦️
+22°
Day
🌦️
+25°
Evening
🌇
+24°
Night
🌙
+21°
Drizzle · precipitation 42% · wind up to 22 km/h. 😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.
▶
Wed 23.9
🌦️
💧 51%
+18°+21°
Morning
🌦️
+19°
Day
🌦️
+21°
Evening
🌇
+20°
Night
🌙
+18°
Drizzle · precipitation 51% · wind up to 30 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Thu 24.9
⛅
💧 46%
+17°+24°
Morning
⛅
+20°
Day
⛅
+24°
Evening
🌇
+22°
Night
🌙
+17°
Partly cloudy · precipitation 46% · wind up to 11 km/h. 😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.
▶
Fri 25.9
☀️
💧 36%
+19°+26°
Morning
☀️
+22°
Day
☀️
+26°
Evening
🌇
+24°
Night
🌙
+19°
Clear · precipitation 36% · wind up to 13 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
29 / 100
for sea and sun · So-so
🏊 Swimming
0 / 100
water 23° · Bad
🏃 Running
0 / 100
comfort for running · Bad
🧴 UV
0%
moderate · low
☂️ Rain
83%
likely · high
✨ Stars
30 / 100
evening visibility · So-so
🧺 Laundry drying
0 / 100
will dry outside · Bad
🚗 Car wash
0 / 100
better to wait · Bad
🌫️ Air quality
40
Good air
European AQI
PM2.5: 15PM10: 16O₃: 33NO₂: 25
The air is clean — you can walk and exercise outside.
🌅 Sun, moon and sea
Sunrise
05:52
Sunset
17:45
Golden hour
17:15
Daylight
12 h (+1 min vs yesterday)
Sea temperature
+23°
🌊 slight, waves 0.7 m.
Rio de Janeiro 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.
+31°
+24°
Jan
+31°
+24°
Feb
+30°
+23°
Mar
+28°
+22°
Apr
+26°
+19°
May
+25°
+18°
Jun
+25°
+17°
Jul
+26°
+18°
Aug
+27°
+19°
Sep
+28°
+20°
Oct
+28°
+21°
Nov
+29°
+23°
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
+31°
+24°
+26°
253 mm
Gentle warmth — about +31° daytime, great walking weather. Frequent rain (253 mm over the month) — keep indoor backup plans. 😊 light summer clothing. Water at +26° — great for swimming. Statistically the wettest month of the year.
February
+31°
+24°
+28°
187 mm
A comfortable month: +31° by day without exhausting heat. One of the wettest months (187 mm): downpours can derail plans. 😊 light summer clothing. Water at +28° — great for swimming. This is the hottest month of the year in Rio de Janeiro.
March
+30°
+23°
+26°
210 mm
Warm and comfortable: +30° by day, +23° at night. It's a rainy month (210 mm) — an umbrella is a must. 😊 light summer clothing. Water at +26° — great for swimming.
April
+28°
+22°
+25°
103 mm
Gentle warmth — about +28° daytime, great walking weather. Frequent rain (103 mm over the month) — keep indoor backup plans. 😊 light summer clothing. Water at +25° — great for swimming.
May
+26°
+19°
+24°
76 mm
The most pleasant season: +26° by day, comfortable all day long. One of the wettest months (76 mm): downpours can derail plans. 😊 light summer clothing. Water at +24° — great for swimming.
June
+25°
+18°
+23°
47 mm
One of the best times to visit: +25° by day, fresh nights. 😊 light summer clothing. Water at +23° — great for swimming. The shortest daylight of the year — it gets dark early.
July
+25°
+17°
+22°
49 mm
Ideal weather: +25° daytime — neither hot nor cold. 😊 light summer clothing. Water at +22° — great for swimming. This is the coldest month of the year.
August
+26°
+18°
+22°
44 mm
The most pleasant season: +26° by day, comfortable all day long. 😊 light summer clothing. Water at +22° — great for swimming. Weather-wise, one of the three best months to visit.
September
+27°
+19°
+23°
88 mm
Warm and comfortable: +27° by day, +19° at night. It's a rainy month (88 mm) — an umbrella is a must. 😊 light summer clothing. Water at +23° — great for swimming.
October
+28°
+20°
+22°
115 mm
Gentle warmth — about +28° daytime, great walking weather. Frequent rain (115 mm over the month) — keep indoor backup plans. 😊 light summer clothing. Water at +22° — great for swimming.
November
+28°
+21°
+23°
205 mm
A comfortable month: +28° by day without exhausting heat. One of the wettest months (205 mm): downpours can derail plans. 😊 light summer clothing. Water at +23° — great for swimming.
December
+29°
+23°
+24°
225 mm
Warm and comfortable: +29° by day, +23° at night. It's a rainy month (225 mm) — an umbrella is a must. 😊 light summer clothing. Water at +24° — great for swimming. The longest daylight hours of the year — more time for everything.
When to visit Rio de Janeiro
✅ Recommended time to visit
🌟 Best time: June, July, August
Daytime air+25…+26°
Sea temperature+22…+23°
Precipitationoften
Why: comfortable +25…+26° by day, little rain, warm sea (+22…23°).
⚠️ Doable, with caveats
🌤️ Shoulder season: February, April, May, September, October, November
Daytime air+26…+31°
Sea temperature+22…+28°
Precipitationoften
Why: noticeable rain risk (76–205 mm/month) — pack an umbrella and backup plans.
🔴 Not the best time
🌤️ Shoulder season: January, March, December
Daytime air+29…+31°
Sea temperature+24…+26°
Precipitationoften
Why: the rainy season (210–253 mm/month) — downpours almost daily.
Bottom line: the best time to visit Rio de Janeiro is June – August, and the most comfortable months are June, July, August. The toughest months to visit are January, March, December: frequent rain.
🌡️ Today vs the climate normal
Today's high
+30°
Normal for September
+27°
Deviation
3° warmer than normal
A year ago on this day
+23°
Record for this date
+38° (1961)
The normal, “a year ago” and the record come from the weather archive since 1940 (Open-Meteo / ERA5).
Weather archive for Rio de Janeiro
📅 See what the weather was like on any day since 1940. For example: “what was the weather on March 2, 2021”.