Rio de Janeiro Weather

2024 (Full Year)

Historical data
Average Temperature
29.5 °C
High
/
20.6 °C
Low
1109.0mm
Precipitation
39.3°C
Peak Temp
12.5°C
Low Temp
366
Days Count

Seasonal Breakdown

Average temperatures and precipitation by season

Spring

92 days
30.3°C
Avg High
/
21.8°C
Avg Low
Precipitation
339.3mm

Summer

92 days
27.2°C
Avg High
/
17.2°C
Avg Low
Precipitation
121.9mm

Autumn

91 days
29.5°C
Avg High
/
20.2°C
Avg Low
Precipitation
218.6mm

Winter

91 days
30.9°C
Avg High
/
23.3°C
Avg Low
Precipitation
429.2mm

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
30.8°C / 23.5°C
Avg High / Low
Precipitation
203.8mm

February

29 days
31.6°C / 23.9°C
Avg High / Low
Precipitation
83.8mm

March

31 days
30.7°C / 23.1°C
Avg High / Low
Precipitation
288.8mm

April

30 days
30.2°C / 21.1°C
Avg High / Low
Precipitation
15.1mm

May

31 days
30.2°C / 21.0°C
Avg High / Low
Precipitation
35.4mm

June

30 days
28.6°C / 17.8°C
Avg High / Low
Precipitation
14.5mm

July

31 days
25.8°C / 17.6°C
Avg High / Low
Precipitation
38.6mm

August

31 days
27.3°C / 16.4°C
Avg High / Low
Precipitation
68.8mm

September

30 days
30.9°C / 19.5°C
Avg High / Low
Precipitation
12.9mm

October

31 days
28.6°C / 20.1°C
Avg High / Low
Precipitation
98.6mm

November

30 days
29.0°C / 20.9°C
Avg High / Low
Precipitation
107.1mm

December

31 days
30.4°C / 22.5°C
Avg High / Low
Precipitation
141.6mm

Temperature Trends

Daily high, low, and average

Weather Extremes

Most notable conditions during this period

Period High

39.3°C
Wednesday, October 2

Coolest Day

18.5°C
Monday, August 26

Period Low

12.5°C
Wednesday, August 14

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 29.5°C but 34 very hot days (39.3°C peak).

High Rainfall Climate

Worth noting

Rio de Janeiro has a high rainfall climate with 1109mm annual precipitation (3.0mm daily average). Wettest months: March (289mm), January (204mm), December (142mm).

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Seasonal Weather Patterns

Info
Rainfall Patterns:
Wettest: March (289mm), January (204mm)
Driest: September (13mm), June (15mm)

Temperature Patterns (Monthly Averages):
Hottest months: February (31.6°C), September (30.9°C)
Coolest months: July (25.8°C), August (27.3°C)

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

33 Exceptional Weather Events (showing top 3)

Info

The 3 most extreme of 33 notable days in this period:

Oct 2 Heat

Hottest day: 39.3°C

Nov 28 Heat

Very hot day: 38.8°C

Mar 17 Heat

Very hot day: 38.6°C

113 Extreme Heat Index Days

Worth noting

113 days with dangerous heat index levels (46.3°C average). Temperature 33.6°C combined with 72% humidity creates hazardous conditions.

High Humidity Levels

Info

Average humidity of 76% indicates persistently moist air conditions. Heat sensation amplified during warm periods (29.5°C average temperature). Humidity varied significantly (43%-98% 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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