Click on a day for an hourly weather forecast
The weather in Harlingen in May is very hot. The average temperatures are between 23°C and 31°C, drinking water regularly is advisable.
You can expect about 3 to 8 days of rain in Harlingen 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 Harlingen in May 2025.
If you’re planning to visit Harlingen in the near future, we highly recommend that you review the 14 day weather forecast for Harlingen before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 21° / 14° | 2 | 29 | 0 | 30 mm | Good | Harlingen in January |
| February | 23° / 15° | 1 | 27 | 0 | 17 mm | Perfect | Harlingen in February |
| March | 26° / 18° | 1 | 30 | 0 | 20 mm | Perfect | Harlingen in March |
| April | 29° / 21° | 2 | 28 | 0 | 20 mm | Good | Harlingen in April |
| May | 31° / 23° | 3 | 28 | 0 | 34 mm | Good | Harlingen in May |
| June | 34° / 25° | 4 | 26 | 0 | 59 mm | Ok | Harlingen in June |
| July | 35° / 26° | 3 | 28 | 0 | 37 mm | Ok | Harlingen in July |
| August | 35° / 27° | 3 | 28 | 0 | 30 mm | Ok | Harlingen in August |
| September | 33° / 26° | 5 | 25 | 0 | 78 mm | Good | Harlingen in September |
| October | 30° / 23° | 2 | 29 | 0 | 32 mm | Good | Harlingen in October |
| November | 25° / 18° | 1 | 29 | 0 | 28 mm | Perfect | Harlingen in November |
| December | 22° / 15° | 2 | 29 | 0 | 24 mm | Good | Harlingen in December |