Rio de Janeiro Weather

2025 (Full Year)

Average Temperature
27.2 °C
High
/
20.7 °C
Low
624.3mm
Rain Volume
39.4°C
Peak Temp
14.8°C
Low Temp
365
Days Count

Seasonal Breakdown

Average temperatures and rainfall by season

Spring

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

Summer

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

Autumn

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

Winter

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

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

✈️ Travel Recommendations

Best visiting months: July, August, June

Based on optimal temperature and rainfall balance from historical weather patterns

Temperature Trends

Daily high, low, and average

Weather Extremes

Most notable conditions during this period

Period High

39.4°C
Monday, February 17
avg daily high: 27.2°C

Coolest Day

19.4°C
Wednesday, July 2
avg daily high: 27.2°C

Period Low

14.8°C
Wednesday, July 16
avg night low: 20.7°C
Progress 0%
0 / 0 years
Analyzing Historical Data

Analyzing 15 years of historical data...

Analysis Period

Years: 15
Location: Rio de Janeiro
Period: 2025-01-01 to 2025-12-31

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).

📅

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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Global Weather Data

Features

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  • Weather trends

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.

© 2025 WeatherWhen. Historical weather data analysis tool.

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