Bonn
May
Weather in Bonn for May 2025
Your guide to Bonn weather in May - trends and predictions
In general, the average temperature in Bonn at the beginning of May is 17.9 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 20.4 °C by the end of May.
The climate of Bonn in May is notably wet, with an average of 13 rainy days.
Is May a good time to visit Bonn? check out the best time to travel to Bonn page.
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18
Dry days
13
Rainy days
0
Snow days
20°/7°
Temperatures
13 km/h
Avg max wind
76 %
Avg humidity
Bonn in May average weather
Move between months or click on a day
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  21° | 2 16° | 3  15° | 4 19° | |||
| 5  19° | 6  17° | 7 18° | 8 16° | 9 18° | 10 19° | 11 19° |
| 12 20° | 13 21° | 14 22° | 15 19° | 16 15° | 17 16° | 18 16° |
| 19  19° | 20 19° | 21 24° | 22 20° | 23 18° | 24 14° | 25 20° |
| 26 21° | 27 21° | 28 22° | 29 19° | 30 18° | 31  22° |
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Temperatures trend during May in Bonn
See the weather trend as well as the moving average line
May weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May | Patchy rain possible | 21° /8° | 2.1 mm | 5 | |
| 2 May | Patchy rain possible | 16° /7° | 2.9 mm | 4 | |
| 3 May | Overcast | 15° /3° | 5.1 mm | 4 | |
| 4 May | Overcast | 19° /5° | 0.1 mm | 5 | |
| 5 May | Moderate or heavy rain shower | 19° /9° | 3.8 mm | 5 | |
| 6 May | Cloudy | 17° /9° | 7.2 mm | 4 | |
| 7 May | Moderate or heavy rain shower | 18° /9° | 10.1 mm | 4 | |
| 8 May | Moderate rain at times | 16° /9° | 3.1 mm | 4 | |
| 9 May | Moderate or heavy rain shower | 18° /9° | 8.9 mm | 5 | |
| 10 May | Moderate rain at times | 19° /8° | 5.7 mm | 5 | |
| 11 May | Patchy rain possible | 19° /8° | 1.9 mm | 5 | |
| 12 May | Moderate rain at times | 20° /10° | 2.7 mm | 5 | |
| 13 May | Patchy rain possible | 21° /9° | 0.9 mm | 5 | |
| 14 May | Patchy rain possible | 22° /9° | 0.4 mm | 5 | |
| 15 May | Patchy rain possible | 19° /10° | 0.9 mm | 5 | |
| 16 May | Patchy rain possible | 15° /9° | 4.9 mm | 4 | |
| 17 May | Patchy rain possible | 16° /8° | 4.8 mm | 4 | |
| 18 May | Overcast | 16° /6° | 3.3 mm | 4 | |
| 19 May | Partly cloudy | 19° /6° | 3 mm | 5 | |
| 20 May | Patchy rain possible | 19° /9° | 1.4 mm | 5 | |
| 21 May | Patchy rain possible | 24° /10° | 4.7 mm | 5 | |
| 22 May | Patchy rain possible | 20° /13° | 3.9 mm | 5 | |
| 23 May | Patchy rain possible | 18° /9° | 2.9 mm | 4 | |
| 24 May | Overcast | 14° /8° | 4.6 mm | 4 | |
| 25 May | Partly cloudy | 20° /7° | 0.7 mm | 5 | |
| 26 May | Partly cloudy | 21° /8° | 2.9 mm | 6 | |
| 27 May | Overcast | 21° /8° | 2.5 mm | 5 | |
| 28 May | Partly cloudy | 22° /7° | 3.2 mm | 6 | |
| 29 May | Cloudy | 19° /10° | 10.3 mm | 5 | |
| 30 May | Cloudy | 18° /8° | 5.5 mm | 4 | |
| 31 May | Sunny | 22° /9° | 0.5 mm | 6 | |
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Important Notice
Our weather forecast for Bonn in May is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Bonn forecast closer to your planned date for the most up-to-date weather information.
Bonn in May - FAQ
What are the expected maximum and minimum temperatures in Bonn during May?
Enjoy moderate daytime temperatures of up to 20° and cooler nights around 7°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Bonn during May?
Significant rainfall exceeding 178.6 mm is expected in Bonn during May, occurring over more than 13 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Bonn during May?
The average wind speed in Bonn during May is 13 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Bonn in May?
As you prepare for your trip to Bonn in May, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Bonn, during May, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Warm Clothing: Sweaters, hoodies, long pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Scarves: To protect you from the cold wind
- Gloves/Mittens: Essential for cold weather
- Warm Hats: Warm hats for insulation in cold weather
- Umbrellas/Raincoats: For rainy days
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