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 #

In Bonn, temperatures show a clear seasonal variation, with the lowest averages in January (1.6°C min, 6.0°C max) and the highest in July (14.4°C min, 24.3°C max).
The warmest months are June to August, reaching peak temperatures near 25°C, while temperatures drop significantly in late autumn and winter.

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 Bonn, the overall trend shows that sun hours peak during the summer months, particularly in June with an average of 6.1 hours, while precipitation levels tend to be relatively stable throughout the year, hovering between 1.78mm and 3.12mm.
Notably, April has the best balance of sun and low precipitation, while January and December feature the least sun hours, indicating a more overcast and rainy climate during the winter months.

Sunny Weather

Period	Bonn
Jan	1.5 hours/day
Feb	3.0 hours/day
Mar	3.8 hours/day
Apr	4.2 hours/day
May	4.8 hours/day
Jun	6.1 hours/day
Jul	5.9 hours/day
Aug	5.4 hours/day
Sep	5.0 hours/day
Oct	2.9 hours/day
Nov	2.2 hours/day
Dec	1.3 hours/day
Average	3.8 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 Bonn, the earliest sunrise occurs in June at 05:19, while the latest sunrise is seen in December at 08:25.
Conversely, the latest sunset is also in June at 21:45, with the earliest sunset in December at 16:28, highlighting significant seasonal differences in daylight hours.
The shortest day occurs in December, lasting 8 hours and 2 minutes, compared to the longest day in June, which spans 16 hours and 25 minutes, indicating a drastic change in day length throughout the year.

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

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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Weather in Bonn

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