Weather in Rio de Janeiro

Calculated from weather data of Santos Dumont Airport (SBRJ) between 2020 and 2024.

Maximum temperatures (°C)

Month	Average	2024	2023	2022	2021	2020
January	30.8	29.5	28.8	29.1	30.8	29.1
February	30.2	30.1	30.1	28.3	28.8	29.3
March	30.0	28.8	29.3	30.3	30.3	27.3
April	28.2		27.0	27.6	27.3	26.3
May	26.5		25.5	25.8	25.5	25.5
June	25.8		25.1	23.8	24.8	26.1
July	25.6		24.8	26.1	23.5	25.8
August	25.5		25.6	24.6	25.1	25.3
September	26.9		28.1	24.1	26.1	27.3
October	27.2		26.8	27.0	24.1	26.8
November	27.5		28.5	26.1	25.3	26.3
December	28.8		28.8	27.8	27.3	28.1
Average	28.0	29.4	27.3	26.7	26.6	26.9

87th highest temperature of Brazil

Average highest temperature per day

The maximum temperature is typically observed some hours after noon.

Minimum temperatures (°C)

Month	Average	2024	2023	2022	2021	2020
January	23.8	24	24	24	25	23
February	23.5	25	24	24	24	23
March	23.3	24	24	24	25	23
April	22.4		23	23	22	22
May	20.9		21	21	21	20
June	19.9		20	19	20	21
July	19.2		19	20	18	20
August	19.1		20	19	20	20
September	20.7		22	19	21	23
October	21.7		22	22	20	23
November	21.4		23	21	21	22
December	22.9		24	22	23	24
Average	21.9	24.3	22.0	21.4	21.5	21.8

67th lowest temperature of Brazil

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Cold and hot days

Number of days	2024	2023	2022	2021	2020
30 °C or warmer	28	51	48	47	44
25 °C or warmer	84	254	224	220	248
20 °C or warmer	91	363	350	358	364
0 °C or colder	0	0	0	0	0

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	6.3	10	13	10	1	8
February	5.2	3	2	6	5	12
March	4.2	7	1	2	2	8
April	4.3		9	4	3	3
May	4.8		8	4	5	6
June	4.2		1	8	4	3
July	3.7		6	2	2	6
August	8.2		13	9	5	5
September	6.7		4	17	1	5
October	8.0		12	4	14	7
November	8.0		6	8	11	3
December	6.7		5	7	10	12
Average	6.0	6.9	6.5	6.6	5.2	6.7

Precipitation during daylight period

Percentage of observations with observed rain, drizzle, snow or hail. Only observations between sunrise and sunset are taken into account.

Wind speed (km/h)

Month	Average	2024	2023	2022	2021	2020
January	14.4	15	14	14	15	14
February	13.9	14	15	14	14	13
March	14.1	14	15	15	15	14
April	13.2		14	14	15	12
May	12.1		12	13	12	13
June	11.3		12	12	12	12
July	12.5		13	13	14	13
August	12.7		13	14	14	14
September	14.3		14	14	15	15
October	14.6		15	15	14	16
November	14.8		16	16	15	15
December	15.4		17	15	16	15
Average	13.8	14.4	14.2	14.1	14.4	13.8

36th highest wind speed of Brazil

Average wind speed

Excluding wind gusts. Only observations between sunrise and sunset are taken into account.

Prevailing wind direction

Month	2024	2023	2022	2021	2020
January	S	SE	S	SE	S
February	SE	SE	S	SE	S
March	S	SE	SE	SE	S
April		S	S	S	S
May		S	SW	SE	S
June		SE	S	S	E
July		S	S	S	SE
August		SE	S	SE	S
September		S	S	S	SE
October		S	S	SE	S
November		S	SE	S	S
December		S	SE	S	S

Prevailing wind direction

Average wind direction, weighed by wind speed. Only observations between sunrise and sunset are taken into account.

Rio de Janeiro weather Q&A

What is the warmest month in Rio de Janeiro?

The warmest month is January with an average temperature of 31 °C over the past years.

What is the coldest month in Rio de Janeiro?

The coldest month is August with an average daytime temperature of 26 °C in the past few years.

Which month is the wettest in Rio de Janeiro?

Chance of precipitation is the highest in August with a probability of around 8.2 %.

Which month is the driest in Rio de Janeiro?

The least rainfall and snow can be expected in July. The probability is about 3.7 %.