Click on a day for an hourly weather forecast
The temperatures in Haarlem in May are usually low and can range between 10°C and 15°C.
You can expect about 3 to 8 days of rain in Haarlem during the month of May. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Haarlem in May 2026.
If you’re planning to visit Haarlem in the near future, we highly recommend that you review the 14 day weather forecast for Haarlem before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 6° / 3° | 9 | 18 | 4 | 74 mm | Awful | Haarlem in January |
| February | 6° / 3° | 8 | 16 | 4 | 57 mm | Awful | Haarlem in February |
| March | 9° / 5° | 6 | 24 | 1 | 48 mm | Ok | Haarlem in March |
| April | 13° / 7° | 3 | 27 | 1 | 35 mm | Ok | Haarlem in April |
| May | 15° / 10° | 5 | 26 | 0 | 64 mm | Good | Haarlem in May |
| June | 18° / 13° | 4 | 26 | 0 | 77 mm | Good | Haarlem in June |
| July | 20° / 16° | 6 | 25 | 0 | 96 mm | Good | Haarlem in July |
| August | 21° / 16° | 6 | 25 | 0 | 116 mm | Good | Haarlem in August |
| September | 18° / 14° | 5 | 25 | 0 | 90 mm | Good | Haarlem in September |
| October | 15° / 11° | 7 | 24 | 0 | 97 mm | Ok | Haarlem in October |
| November | 11° / 8° | 7 | 22 | 1 | 89 mm | Bad | Haarlem in November |
| December | 8° / 5° | 8 | 20 | 3 | 87 mm | Awful | Haarlem in December |