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Weather in Rio de Janeiro - 14-day forecast

Detailed weather forecast for Rio de Janeiro, Brazil: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Rio de Janeiro
today🌧️ 24°💧 1.1 mm
Sun🌧️ 18°💧 18.7 mm
Mon🌧️ 16°💧 15.2 mm
Tue🌧️ 21°💧 0.9 mm
Wed🌧️ 21°💧 7.3 mm
Thu🌧️ 25°💧 0.8 mm
Fri🌧️ 27°💧 3.3 mm
Sat🌧️ 33°💧 12 mm
Forecast vs 1991-2020 climate normal

How does the current forecast compare with normal?

We compare the coming days with weather usually observed at this time of year.

NASA POWER

Sunday 6 Sept in Rio de Janeiro, the forecast high is 18°C. Typical daytime temperatures at this time of year range from 23°C to 29°C, so it will be exceptionally cool. It is cooler than 99% of similar days.

24°Cnear normal
usually 23°C–29°C
night: exceptionally warm rain: more rain than usual wind: typical
18°Cexceptionally cool
usually 23°C–29°C
cooler than 99% of similar days
night: cooler than usual rain: exceptionally wet wind: typical
16°Cexceptionally cool
usually 23°C–29°C
cooler than 99% of similar days
night: exceptionally cool rain: exceptionally wet wind: lighter than usual
21°Ccooler than usual
usually 23°C–29°C
cooler than 89% of similar days
night: warmer than usual rain: typical rainfall wind: exceptionally light
21°Cexceptionally cool
usually 23°C–29°C
cooler than 91% of similar days
night: warmer than usual rain: more rain than usual wind: exceptionally light
25°Cnear normal
usually 23°C–29°C
night: exceptionally warm rain: typical rainfall wind: exceptionally light
27°Cwarmer than usual
usually 23°C–29°C
warmer than 72% of similar days
night: exceptionally warm rain: more rain than usual wind: exceptionally light

How warm was this week in previous years?

Each bar shows the average daily high during the same 7-day period in each year.

swipe to see more years →
15°25°35° 1981: 26°C1982: 23°C1983: 23°C1984: 24°C1985: 23°C1986: 23°C1987: 24°C1988: 25°C1989: 26°C1990: 23°C1991: 23°C1992: 21°C1993: 26°C1994: 23°C1995: 28°C1996: 21°C1997: 27°C1998: 26°C1999: 27°C2000: 23°C2001: 25°C2002: 25°C2003: 26°C2004: 25°C2005: 27°C2006: 24°C2007: 27°C2008: 27°C2009: 29°C2010: 23°C2011: 28°C2012: 28°C2013: 24°C2014: 27°C2015: 25°C2016: 26°C2017: 27°C2018: 23°C2019: 27°C2020: 28°C2021: 26°C2022: 26°C2023: 27°C2024: 30°C2025: 26°C 2026 forecast: 22°C current forecast 22°C 198119902000201020202026
cooler yearstypical rangewarmer years2026 forecastcurrent forecast

From 1981 to 2025, the 5-11 Sept period averaged 25°C by day. The coolest year was 1996 (21°C) and the warmest was 2024 (30°C). The current forecast averages 22°C - lower than in 96% of historical years.

Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.

14-day forecast - Rio de Janeiro

Rio de Janeiro - 14-day weather forecast infographic

Rio de Janeiro 30 & 45-day weather - long-range outlook

Next 15 days · forecast
23°
around 21° at night · days with rain: 11
Weeks 3-4 · avg for September
27°
around 20° at night · rain chance 30%
Weeks 5-7 · avg for October
28°
around 21° at night · rain chance 31%
The 30 & 45-day outlook for Rio de Janeiro: the next 15 days are a numerical forecast updated daily - on average 23° by day and 21° at night. Further out we rely on multi-year climate averages: around 27° in September, and about 28° in October. Forecasts beyond two weeks are indicative only.

Day-by-day forecast for Rio de Janeiro

Saturday5 September 2026
🌧️24°light rain
sunrise 06:00 · sunset 17:44 · night 26° · evening 25° · rain 1.12 mm · humidity 64% · wind 5 m/s · clouds 34%
Sunday6 September 2026
🌧️18°moderate rain
sunrise 05:59 · sunset 17:44 · night 17° · evening 18° · rain 18.68 mm · humidity 90% · wind 6 m/s · clouds 100%
Monday7 September 2026
🌧️16°moderate rain
sunrise 05:58 · sunset 17:44 · night 16° · evening 16° · rain 15.21 mm · humidity 84% · wind 4 m/s · clouds 100%
Tuesday8 September 2026
🌧️21°light rain
sunrise 05:57 · sunset 17:45 · night 20° · evening 22° · rain 0.88 mm · humidity 63% · wind 3 m/s · clouds 50%
Wednesday9 September 2026
🌧️21°moderate rain
sunrise 05:56 · sunset 17:45 · night 21° · evening 21° · rain 7.3 mm · humidity 87% · wind 4 m/s · clouds 100%
Thursday10 September 2026
🌧️25°light rain
sunrise 05:55 · sunset 17:45 · night 22° · evening 23° · rain 0.84 mm · humidity 72% · wind 3 m/s · clouds 100%
Friday11 September 2026
🌧️27°light rain
sunrise 05:54 · sunset 17:45 · night 23° · evening 23° · rain 3.3 mm · humidity 64% · wind 3 m/s · clouds 89%
Saturday12 September 2026
🌧️33°moderate rain
sunrise 05:53 · sunset 17:46 · night 23° · evening 23° · rain 12.03 mm · humidity 43% · wind 6 m/s · clouds 5%
Sunday13 September 2026
🌧️19°light rain
sunrise 05:52 · sunset 17:46 · night 17° · evening 18° · rain 8.82 mm · humidity 77% · wind 5 m/s · clouds 100%
Monday14 September 2026
🌧️16°light rain
sunrise 05:51 · sunset 17:46 · night 16° · evening 16° · rain 9.24 mm · humidity 86% · wind 2 m/s · clouds 100%
Tuesday15 September 2026
🌧️20°light rain
sunrise 05:50 · sunset 17:47 · night 20° · evening 20° · rain 1.5 mm · humidity 70% · wind 2 m/s · clouds 73%
Wednesday16 September 2026
☁️22°broken clouds
sunrise 05:49 · sunset 17:47 · night 21° · evening 21° · rain 33.54 mm · humidity 74% · wind 4 m/s · clouds 73%
Thursday17 September 2026
☁️26°broken clouds
sunrise 05:48 · sunset 17:47 · night 23° · evening 23° · rain 7.98 mm · humidity 64% · wind 4 m/s · clouds 80%
Friday18 September 2026
🌧️25°light rain
sunrise 05:47 · sunset 17:48 · night 23° · evening 24° · rain 0.12 mm · humidity 75% · wind 4 m/s · clouds 100%
Saturday19 September 2026
🌧️29°light rain
sunrise 05:46 · sunset 17:48 · night 24° · evening 24° · rain 0.39 mm · humidity 52% · wind 4 m/s · clouds 49%

UV index in Rio de Janeiro - is it safe to sunbathe?

UV INDEX · 16-DAY FORECASTRio de Janeiro03681111+7.4UV HIGHtoday, daily maxSPF 30-50, a hat and sunglasses are a must. Betterstay in shade between 11:00 and 15:00.Unprotected fair skin may burn in about 25 min7Sat5.091Sun6.091Mon7.098Tue8.095Wed9.097Thu10.097Fri11.098Sat12.091Sun13.092Mon14.097Tue15.098Wed16.094Thu17.098Fri18.096Sat19.098Sun20.090-2 low3-5 moderate6-7 high8-10 very high11+ extremeworld-prices.com · 2026-09-05
Today the UV index in Rio de Janeiro is 7 (high) - unprotected fair skin can burn in about 25 minutes. SPF 30-50, a hat and sunglasses are a must. Better stay in shade between 11:00 and 15:00.

Sea temperature - Rio de Janeiro

Water today
23°C
Week avg
23°C
Waves today
0.5 m
How's the water?
pleasant
16-day sea temperature forecast:
5.09 23°C6.09 23°C7.09 23°C8.09 23°C9.09 23°C10.09 23°C11.09 23°C12.09 23°C13.09 23°C
Average sea temperature through the year:
Jan 26°CFeb 28°CMar 26°CApr 25°CMay 24°CJun 23°CJul 22°CAug 22°CSep 23°COct 23°CNov 24°CDec 25°C
Sea-surface temperature from marine models, updated daily. See also: where the sea is warmest right now.

Air quality and smog in Rio de Janeiro

Air quality in Rio de Janeiro is currently moderate. Fine particulate PM2.5: 54.8 µg/m³, PM10: 58.3 µg/m³.
CityPM2.5 (µg/m³)PM10 (µg/m³)Air quality
Rio de Janeiro54.858.3moderate
Based on PM2.5 thresholds. Station readings, updated daily (last reading: 2026-09-04, 22:00).

Rio de Janeiro weather through the year

Rio de Janeiro - annual climate

Warmest, driest months on average: May, June, July, August.

Upcoming public holidays in Brazil: Independence Day — 7 September · Our Lady of Aparecida — 12 October · All Souls' Day — 2 November.

Nearby and related places

São PauloCampinasBrasíliaSão LuísManausGoiâniaTeresinaCampo Grande

FAQ - Rio de Janeiro weather

What is the weather like in Rio de Janeiro today?
Today it is about 24° during the day and 26° at night, light rain.
How far ahead can I check the forecast for Rio de Janeiro?
This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.