Yearly weather

Calculations are based on the last 8 years of historical weather data.

Weather Score #

Heat Seeker Score is a composite score designed for those who crave hot, sunny weather with minimal rainfall. It prioritizes high temperatures and abundant sunshine.

Perfect for sun worshippers, beach lovers, and those seeking warm, dry climates for outdoor activities and relaxation.

Formula optimized for hot weather enthusiasts who prefer temperatures above 25°C (77°F) with maximum sun exposure and minimal precipitation.

Key factors in the calculation:

High temperatures: Favors locations with warm to hot daily highs
Abundant sunshine: Rewards areas with maximum daylight hours
Low precipitation: Penalizes frequent rain and wet conditions
Warm nights: Considers comfortable evening temperatures

Temperatures #

Rio de Janeiro maintains comfortable temperatures throughout the year, with all months falling within the 18.0C to 26.0C range
The warmest months are January and February, with average highs reaching 30.2C and 30.0C respectively, exceeding the upper comfort threshold
July has the lowest temperatures, with a minimum average of 17.8C, which is just below comfortable temperatures
Overall, Rio de Janeiro has very stable and pleasant weather conditions.

Maximum Temperatures

Minimum Temperatures

Maximum/minimum temperature averages are computed by averaging the max/min temperature of each day for a given period.

Conditions #

In Rio de Janeiro, there is a noticeable trend of increasing sun hours from January to July, peaking at 7.5 hours in both July and September, while precipitation levels decrease significantly during this period, with July recording the lowest at 0.75mm.
In contrast, from October to December, sun hours drop again, notably in December with only 3.7 hours, alongside a moderate increase in precipitation during these months, highlighting a seasonal shift towards cloudier, wetter conditions at the end of the year.

Sunny Weather

Period	Rio de Janeiro
Jan	5.2 hours/day
Feb	5.2 hours/day
Mar	6.1 hours/day
Apr	5.7 hours/day
May	6.4 hours/day
Jun	6.7 hours/day
Jul	7.5 hours/day
Aug	6.6 hours/day
Sep	7.4 hours/day
Oct	4.2 hours/day
Nov	4.5 hours/day
Dec	4.6 hours/day
Average	5.8 hours/day

Sun hours are computed from the number of hours of direct sunlight. The length of the day can affect these measurements; for example, northern cities have longer days in summer.

Precipitation Levels

Average amount of precipitation that falls in a form of a rain, snow, sleet or hail.

Wind Speed

Humidity

Daylight Hours #

In Rio de Janeiro, the earliest sunrise occurs in November at 05:01, while the latest sunrise is observed in July at 06:32.
The city experiences its earliest sunset in June at 17:16 and its latest sunset in January at 18:42, leading to notable variations in day length.
The shortest day is recorded in June at 10 hours and 45 minutes, contrasted by the longest day in December at 13 hours and 30 minutes, indicating a significant seasonal shift in daylight hours.

Sunrise Time

Sunrise times are output in the local timezone of each place.

Sunset Time

Sunset times are output in the local timezone of each place.

Useful Day Length

Period	Rio de Janeiro
Jan	11:58 hours
Feb	11:40 hours
Mar	11:07 hours
Apr	10:40 hours
May	10:20 hours
Jun	10:16 hours
Jul	10:26 hours
Aug	10:38 hours
Sep	10:47 hours
Oct	11:02 hours
Nov	11:29 hours
Dec	11:49 hours
Average	11:00 hours

Discards daylight hours before 7 AM. In places that are located to the west of the timezone, the sun rises and sets later compared to the cities that are located to the east. This means that the useful day length is longer in the cities located to the west of the time zone.

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