Tomorrow in Rio de Janeiro: Hot, with showers possible, high of 28°

Sunday 1 November at Rio de Janeiro Galeão – Tom Jobim International Airport (GIG), Brazil

Tomorrow at GIG

High28°

Likely 26°–30°

Showers possible

Low 21°, likely 20°–22°

42% chance of rain
Wind up to 25 km/h
Humidity 79%

Through the day

Times are local; night hours are shaded. The line is a sketch, not an hour-by-hour forecast: this airport's typical daily temperature cycle, scaled to tomorrow's high and low.

Tomorrow's high should be 1° warmer than today's, and close to the normal high for 1 November. Rain is less likely than usual: 42% against a normal 54% for the date.

How sure we are

Shaded: the likely range (an 80% range). In our tests, eight days in ten ended inside it.

Right now at GIG

27°, mostly cloudy, wind from the southwest at 9 km/h.

Latest airport report, 14:00 local time.

The details

Chance of rain: 42% normal 54%
Chance of thunder: 7%
Chance of fog: 1% or less
Strongest wind: 25 km/h
Strongest gust: 26 km/h
Average humidity: 79%
Daytime sky: Showers possible

Chances are for the local day. Rain means rain, drizzle or snow in at least one hourly airport report; fog means fog or visibility under 1 km in at least one. "Normal" is this airport's usual chance for the date. Wind and gust are the strongest of the day.

How our forecasts did here

Each band is the forecast high ±2°, each dot what the airport measured. Highs more than 2° off are in bold. Rained means rain or snow was reported that day.
Day	High forecast	High measured	Low forecast	Low measured	Rain chance	Rained
Fri 30 Oct	27°	26°	21°	21°	97%	Yes
Thu 29 Oct	25°	26°	20°	21°	94%	Yes
Wed 28 Oct	25°	27°	19°	20°	6%	No
Tue 27 Oct	22°	24°	18°	18°	64%	Yes
Sun 25 Oct	32°	29°	22°	22°	69%	Yes
Fri 23 Oct	26°	25°	20°	20°	68%	Yes
Thu 22 Oct	24°	24°	19°	20°	68%	Yes
Wed 21 Oct	25°	25°	19°	20°	31%	Yes
Tue 20 Oct	24°	23°	18°	18°	43%	Yes
Sun 18 Oct	25°	26°	20°	21°	64%	No
Sat 17 Oct	28°	24°	22°	21°	65%	Yes
Fri 16 Oct	27°	30°	22°	23°	76%	Yes
Thu 15 Oct	29°	29°	23°	24°	64%	Yes
Tue 13 Oct	30°	29°	22°	22°	61%	No

The forecast high was within 2° on 11 of the last 14 scored days. Days that could not be scored are left out. Forecasts before 27 October did not yet use ECMWF and were less accurate on average.

"Measured" is the highest and lowest hourly airport report of the local day. Official daily highs and lows can differ a little: at US airports the official high averages about 0.4° higher and the official low about 0.5° lower. More

Not for aviation or safety decisions. Disclaimer