Climate of Rio de Janeiro, Brazil

Af

Köppen-Geiger climate classification: Af — Tropical, rainforest.

Rio de Janeiro has a mean annual temperature of 24.2 °C and receives 1306 mm of precipitation per year (1991–2020 climate normals). The warmest month is February with a mean temperature of 27.2 °C, while July is the coldest month at 21.5 °C. Most precipitation falls in March (169 mm); the driest month is July (50 mm).

Climate Diagram

Climate diagram for Rio de Janeiro: monthly mean temperature (red line, left axis, °C) and monthly precipitation (blue bars, right axis, mm), 1991–2020 0 0 10 20 20 40 30 60 40 80 50 100 60 120 70 140 80 160 90 180 °C mm J F M A M J J A S O N D

Walter–Lieth diagram: blue bars show monthly precipitation (right axis, mm), the red line shows monthly mean temperature (left axis, °C). Scale: 1 °C ≡ 2 mm.

Climate Table

MonthMean temperature (°C)Precipitation (mm)
January26.8168.1
February27.2150.2
March26.3168.7
April25.1109.4
May22.990.8
June22.153.5
July21.549.9
August21.955.5
September22.870.1
October23.899.6
November24.6130.9
December25.9159.6
Year24.21306.2

Live Forecast

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Data Source

Climate normals and Köppen-Geiger classification: Beck et al. (2023), Scientific Data 10, 724, CC BY 4.0. Period 1991–2020. Classification resolution ≈ 1 km; monthly climate data resolution ≈ 1 km (0.01°, Original 2023 release; predates the January 2026 correction), sampled at the grid cell containing the city coordinates (-22.91°, -43.17°). Climate normals describe the long-term average, not current weather.