The Frontier Gazette & Almanack
“Fair Warning for Every Town Under the Sky” · Est. 1881
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Bonn Weather in August

Bonn in August

The short of it: Bonn in August averages a high of 25 °C (77 °F) and a low of 14 °C (57 °F), with 74 mm (2.9 in) of rain and about 14 h 31 min of daylight. Rated 3 of 5 for a visit; the best months are April and June. Source: TerraClimate climate normals, 1991–2020.

Average high 25° · low 14° · rain 74 mm · daylight 14 h 31 min

✦✦✦ Fair for a visit · best months: April & June

August in Bonn brings afternoons near 25° and nights around 14°, with about 74 mm of rain over the month. Much like July: highs about 25°, nights near 14°. Easy travelling weather. Wet spells are common — about 74 mm, the 2nd wettest month.

The sun is up for about 14 h 31 min in mid-August, 93 minutes less than a month before.

For the traveller: pack light clothes and a jacket for the evening, and an oilskin besides. The Almanac rates August 3 of 5 for a visit; the finest months here are April and June.

Against its neighbours, Bonn runs warmer than most and drier than most in August. Bornheim, 8 km to the WNW, is 1° cooler by day.

August in Bonn, by the numbers

Warmth rank
2nd warmest of 12
Rain rank
2nd wettest of 12
Versus July
1° colder, 9.0 mm less rain
Versus September
4° warmer
Day–night spread
11°
Snow season
seldom any
Daylight, mid-month
14 h 31 min
Average wind
9 km/h

Neighbouring Towns

August averages · distance by the crow’s flight
TownDistanceHighLowRain
BornheimNorth Rhine-Westphalia8 km WNW25°14°77 mm
Sankt AugustinNorth Rhine-Westphalia8 km ENE25°13°77 mm
TroisdorfNorth Rhine-Westphalia9 km NNE25°13°77 mm
Hennef (Sieg)North Rhine-Westphalia14 km ENE24°13°80 mm
BrühlNorth Rhine-Westphalia17 km NW24°14°78 mm
Porz am RheinNorth Rhine-Westphalia17 km N25°14°80 mm
RodenkirchenNorth Rhine-Westphalia19 km NNW24°15°80 mm
HürthNorth Rhine-Westphalia22 km NW24°14°78 mm

The Almanac · Bonn Month by Month

Climate normals 1991–2020 · pick a month
PrecipitationAverage highAverage low
Fair
The Almanac Speaks
August
✦✦✦✦✦

Much like July: highs about 25°, nights near 14°. Easy travelling weather. Wet spells are common — about 74 mm, the 2nd wettest month.

Climate of Bonn by month
MonthHighLowRainWindDaylightVisit
January6°1°55 mm13 km/h8 h 25 min✦✦
February8°1°48 mm12 km/h9 h 57 min✦✦
March12°3°50 mm12 km/h11 h 43 min✦✦✦
April16°6°42 mm10 km/h13 h 45 min✦✦✦✦✦
May20°9°62 mm10 km/h15 h 29 min✦✦✦✦
June24°12°70 mm10 km/h16 h 28 min✦✦✦✦
July26°14°83 mm9 km/h16 h 4 min✦✦✦
August25°14°74 mm9 km/h14 h 31 min✦✦✦
September21°11°58 mm9 km/h12 h 32 min✦✦✦✦
October16°7°59 mm10 km/h10 h 35 min✦✦✦
November10°4°57 mm11 km/h8 h 51 min✦✦✦
December7°2°64 mm12 km/h7 h 59 min✦✦

Questions Readers Ask about Bonn in August

Answered from the wire & the Almanac

What is the weather like in Bonn in August?

Days average 25 °C (77 °F) and nights 14 °C (57 °F), with about 74 mm (2.9 in) of rain over the month. Much like July: highs about 25°, nights near 14°. Easy travelling weather. Wet spells are common — about 74 mm, the 2nd wettest month.

Is August a good time to visit Bonn?

The Almanac gives August 3 of 5 (fair). The best months are April and June.

How long are the days in Bonn in August?

In mid-August the sun is up for about 14 h 31 min. The days are shortening — from 7 h 59 min in December to 16 h 28 min in June.

Does it snow in Bonn in August?

Hardly — August nights average 14 °C (57 °F), above freezing.

What should I pack for Bonn in August?

Light clothes and a jacket for the evening, plus a good raincoat — it is a wet month.

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The Editor’s Remark

“Weather is the only news that never grows stale. Each morning the sky writes its own front page, and we at Wanted Weather are but its telegraph operators.”— J. Whitmore, Editor
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