Rio de Janeiro · Brazil

Rio de Janeiro in January: every year compared

In January, Rio de Janeiro averages highs of 31.9 °C and lows of 23.9 °C, with 265 mm of precipitation. The warmest January was 2019 (29.6 °C), the coldest 1979 (24.3 °C).

Avg. highAvg. high 31.9 °C

Avg. lowAvg. low 23.9 °C

PrecipitationPrecipitation 265 mm

Rainy daysRainy days 21

Day by day through January

Normal high and low for each day of January in Rio de Janeiro.

Normal high and low, day by dayNormal 1991–2020

Every January in Rio de Janeiro, ranked

86 months of January since 1940. The last one, 2025, ranks 32 of 86 (−0.1 °C vs normal).

194019832025

2025 · 27.3 °C · −0.1 °C vs normal · rank 32 of 86

Warmest years

1201929.6 °C
2201529.5 °C
3195629.4 °C
4201429.0 °C
5201728.9 °C

Coldest years

1197924.3 °C
2196424.4 °C
3195524.7 °C
4194524.8 °C
5198225.0 °C

All 86 years in a table

Year	Mean temperature	Daytime highs	Night lows	Precipitation	Hot days (30 °C+)	Rainy days
2025	27.3 °C	31.8 °C	24.0 °C	185 mm	21 days	21 days
2024	27.2 °C	31.4 °C	23.9 °C	306 mm	18 days	24 days
2023	26.5 °C	31.1 °C	23.1 °C	331 mm	21 days	23 days
2022	27.1 °C	31.5 °C	23.8 °C	268 mm	23 days	17 days
2021	28.3 °C	33.4 °C	24.0 °C	167 mm	29 days	14 days
2020	26.8 °C	31.1 °C	23.5 °C	302 mm	17 days	20 days
2019	29.6 °C	35.0 °C	25.0 °C	91 mm	31 days	16 days
2018	27.6 °C	32.2 °C	24.2 °C	288 mm	24 days	26 days
2017	28.9 °C	33.7 °C	25.1 °C	187 mm	30 days	24 days
2016	26.9 °C	30.9 °C	23.6 °C	320 mm	19 days	21 days
2015	29.5 °C	34.7 °C	24.7 °C	125 mm	30 days	13 days
2014	29.0 °C	34.5 °C	24.1 °C	72 mm	29 days	13 days
2013	26.2 °C	30.1 °C	23.2 °C	517 mm	16 days	24 days
2012	25.7 °C	29.9 °C	22.4 °C	335 mm	16 days	21 days
2011	28.0 °C	32.9 °C	24.2 °C	210 mm	26 days	16 days
2010	28.7 °C	33.9 °C	24.9 °C	216 mm	30 days	16 days
2009	26.4 °C	30.9 °C	23.3 °C	360 mm	21 days	26 days
2008	25.8 °C	30.1 °C	22.3 °C	245 mm	17 days	23 days
2007	26.2 °C	29.5 °C	23.5 °C	315 mm	12 days	26 days
2006	27.7 °C	32.6 °C	23.9 °C	286 mm	26 days	17 days
2005	26.8 °C	30.6 °C	24.1 °C	272 mm	18 days	25 days
2004	26.0 °C	29.9 °C	22.9 °C	202 mm	16 days	18 days
2003	27.5 °C	31.8 °C	24.5 °C	367 mm	21 days	24 days
2002	27.1 °C	31.4 °C	23.8 °C	218 mm	23 days	19 days
2001	28.2 °C	33.4 °C	24.1 °C	148 mm	28 days	22 days
2000	27.1 °C	31.7 °C	23.4 °C	216 mm	22 days	19 days
1999	27.5 °C	31.8 °C	24.3 °C	290 mm	26 days	25 days
1998	28.3 °C	33.0 °C	24.7 °C	324 mm	28 days	24 days
1997	26.8 °C	31.3 °C	23.5 °C	378 mm	23 days	28 days
1996	28.5 °C	33.8 °C	24.5 °C	196 mm	26 days	19 days
1995	28.8 °C	34.3 °C	25.0 °C	292 mm	26 days	20 days
1994	26.5 °C	30.8 °C	23.5 °C	366 mm	18 days	30 days
1993	27.9 °C	32.7 °C	24.1 °C	178 mm	24 days	17 days
1992	26.6 °C	30.5 °C	23.4 °C	336 mm	16 days	24 days
1991	25.9 °C	29.4 °C	22.9 °C	312 mm	12 days	24 days
1990	28.7 °C	33.4 °C	24.8 °C	89 mm	27 days	16 days
1989	27.3 °C	31.1 °C	24.3 °C	166 mm	20 days	18 days
1988	28.8 °C	33.1 °C	25.4 °C	196 mm	26 days	20 days
1987	27.7 °C	31.7 °C	24.6 °C	280 mm	21 days	24 days
1986	27.5 °C	31.7 °C	24.2 °C	235 mm	24 days	22 days
1985	25.3 °C	28.4 °C	23.1 °C	527 mm	7 days	29 days
1984	28.3 °C	33.0 °C	24.3 °C	148 mm	23 days	17 days
1983	26.8 °C	30.4 °C	24.1 °C	388 mm	16 days	26 days
1982	25.0 °C	28.1 °C	22.4 °C	351 mm	6 days	25 days
1981	26.9 °C	30.7 °C	24.2 °C	366 mm	18 days	23 days
1980	25.7 °C	29.3 °C	22.9 °C	267 mm	13 days	22 days
1979	24.3 °C	28.0 °C	21.5 °C	375 mm	6 days	26 days
1978	27.5 °C	32.0 °C	24.0 °C	164 mm	23 days	14 days
1977	27.1 °C	31.6 °C	23.6 °C	226 mm	26 days	21 days
1976	27.6 °C	32.6 °C	23.7 °C	121 mm	27 days	21 days
1975	25.8 °C	29.5 °C	22.6 °C	451 mm	16 days	27 days
1974	26.8 °C	31.1 °C	23.5 °C	247 mm	20 days	22 days
1973	28.0 °C	32.5 °C	24.7 °C	282 mm	23 days	24 days
1972	27.3 °C	32.3 °C	23.3 °C	157 mm	23 days	19 days
1971	28.5 °C	33.5 °C	24.2 °C	114 mm	24 days	13 days
1970	26.5 °C	30.6 °C	23.1 °C	192 mm	16 days	21 days
1969	27.7 °C	32.0 °C	24.3 °C	230 mm	20 days	24 days
1968	26.8 °C	31.1 °C	23.3 °C	137 mm	25 days	21 days
1967	26.1 °C	30.2 °C	23.0 °C	344 mm	15 days	27 days
1966	26.3 °C	30.6 °C	23.1 °C	338 mm	17 days	23 days
1965	25.1 °C	29.6 °C	21.8 °C	383 mm	18 days	23 days
1964	24.4 °C	27.8 °C	21.8 °C	492 mm	6 days	27 days
1963	26.8 °C	31.4 °C	23.5 °C	205 mm	21 days	23 days
1962	25.1 °C	28.5 °C	22.8 °C	499 mm	9 days	28 days
1961	26.1 °C	30.1 °C	23.3 °C	345 mm	16 days	25 days
1960	25.3 °C	29.3 °C	22.4 °C	211 mm	9 days	25 days
1959	26.4 °C	31.0 °C	22.9 °C	332 mm	20 days	20 days
1958	27.5 °C	32.2 °C	24.0 °C	177 mm	26 days	18 days
1957	26.1 °C	30.6 °C	22.9 °C	235 mm	18 days	22 days
1956	29.4 °C	35.5 °C	24.2 °C	77 mm	30 days	9 days
1955	24.7 °C	28.6 °C	21.7 °C	487 mm	12 days	27 days
1954	28.1 °C	33.4 °C	23.9 °C	75 mm	27 days	20 days
1953	27.0 °C	32.1 °C	23.0 °C	102 mm	22 days	16 days
1952	25.6 °C	29.5 °C	22.9 °C	449 mm	12 days	28 days
1951	26.7 °C	31.7 °C	22.9 °C	165 mm	25 days	12 days
1950	25.6 °C	29.6 °C	22.9 °C	460 mm	16 days	28 days
1949	25.7 °C	30.0 °C	22.6 °C	273 mm	11 days	25 days
1948	27.9 °C	33.5 °C	23.6 °C	104 mm	26 days	14 days
1947	28.7 °C	34.1 °C	24.8 °C	169 mm	29 days	17 days
1946	27.1 °C	32.0 °C	23.7 °C	247 mm	28 days	26 days
1945	24.8 °C	28.6 °C	22.0 °C	310 mm	13 days	27 days
1944	25.7 °C	29.7 °C	22.3 °C	382 mm	16 days	27 days
1943	25.1 °C	30.1 °C	21.2 °C	160 mm	19 days	20 days
1942	25.4 °C	29.6 °C	22.4 °C	341 mm	12 days	24 days
1941	26.3 °C	30.6 °C	23.0 °C	273 mm	15 days	21 days
1940	25.8 °C	29.9 °C	23.0 °C	499 mm	12 days	27 days

January records

Hottest day

39.7 °C

January 17, 1995 estimate

Coldest night

18.0 °C

January 4, 1945 estimate

Wettest day

161 mm

January 3, 2013 estimate

The weather on your birthday in Rio de Janeiro

Any day since 1940: high, low, rain, snow, and how warm it was compared with the same date in every other year.

Questions & answers

How warm is Rio de Janeiro in January?

Highs average 31.9 °C and lows 23.9 °C. A typical January brings 22 hot days (30 °C or more) and 0 frost days.

Does it rain a lot in Rio de Janeiro in January?

About 265 mm falls in January, over some 21 days with at least 1 mm. The wettest January was 1985 (527 mm), the driest 2014 (72 mm).

What was the warmest January in Rio de Janeiro?

2019, with a mean temperature of 29.6 °C. The coldest was 1979 (24.3 °C). The last one, 2025, ranks 32 of 86.