Rio de Janeiro Weather

2025 (Full Year)

Historical data
Average Temperature
27.2 °C
High
/
20.7 °C
Low
624.3mm
Precipitation
39.4°C
Peak Temp
14.8°C
Low Temp
365
Days Count

Seasonal Breakdown

Average temperatures and precipitation by season

Spring

92 days
27.5°C
Avg High
/
21.7°C
Avg Low
Precipitation
196.9mm

Summer

92 days
23.9°C
Avg High
/
17.8°C
Avg Low
Precipitation
88.8mm

Autumn

91 days
26.0°C
Avg High
/
19.4°C
Avg Low
Precipitation
191.9mm

Winter

90 days
31.4°C
Avg High
/
23.8°C
Avg Low
Precipitation
146.7mm

Seasons based on meteorological calendar: Spring (Mar-May), Summer (Jun-Aug), Autumn (Sep-Nov), Winter (Dec-Feb)

Monthly Breakdown

Average temperatures and precipitation by month

January

31 days
31.0°C / 23.9°C
Avg High / Low
Precipitation
66.2mm

February

28 days
33.2°C / 24.8°C
Avg High / Low
Precipitation
4.7mm

March

31 days
29.5°C / 23.4°C
Avg High / Low
Precipitation
55.7mm

April

30 days
27.0°C / 21.7°C
Avg High / Low
Precipitation
122.4mm

May

31 days
26.0°C / 19.8°C
Avg High / Low
Precipitation
18.8mm

June

30 days
25.0°C / 18.4°C
Avg High / Low
Precipitation
18.0mm

July

31 days
22.8°C / 17.2°C
Avg High / Low
Precipitation
48.1mm

August

31 days
24.0°C / 17.8°C
Avg High / Low
Precipitation
22.7mm

September

30 days
25.9°C / 18.6°C
Avg High / Low
Precipitation
33.4mm

October

31 days
25.8°C / 19.3°C
Avg High / Low
Precipitation
83.1mm

November

30 days
26.4°C / 20.2°C
Avg High / Low
Precipitation
75.4mm

December

31 days
30.2°C / 22.9°C
Avg High / Low
Precipitation
75.8mm

Temperature Trends

Daily high, low, and average

Weather Extremes

Most notable conditions during this period

Period High

39.4°C
Monday, February 17

Coolest Day

19.4°C
Wednesday, July 2

Period Low

14.8°C
Wednesday, July 16

Compare with historical weather

Load the same period from the previous 15 years.

Weather Insights

Key findings from analysis for selected period

Variable with Hot Extremes

Worth noting

Average of 27.2°C but 13 very hot days (39.4°C peak).

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Seasonal Weather Patterns

Info
Rainfall Patterns:
Wettest: April (122mm), October (83mm)
Driest: February (5mm), June (18mm)

Temperature Patterns (Monthly Averages):
Hottest months: February (33.2°C), January (31.0°C)
Coolest months: July (22.8°C), August (24.0°C)

Travel Recommendations:
Best visiting months: July, August, June (optimal temperature and rainfall balance).
⚠️

14 Exceptional Weather Events (showing top 3)

Info

The 3 most extreme of 14 notable days in this period:

Feb 17 Heat

Hottest day: 39.4°C

Jan 18 Heat

Very hot day: 38.2°C

Feb 18 Heat

Very hot day: 37.6°C

62 Extreme Heat Index Days

Worth noting

62 days with dangerous heat index levels (45.6°C average). Temperature 33.7°C combined with 70% humidity creates hazardous conditions.

High Humidity Levels

Info

Average humidity of 78% indicates persistently moist air conditions. Heat sensation amplified during warm periods (27.2°C average temperature). Humidity varied significantly (46%-94% range).

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Data Source

Weather data provided by Open-Meteo, offering reliable historical weather information from meteorological stations worldwide.

Data accuracy and availability may vary by location and time period.

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