Sun, sea & sand

Harlingen weather in May

Temperature, sea and sunshine in May: long-term averages from 30 years of weather data, not a forecast.

25

Holiday weather in May

Poor

Best time to visit: April – August

What is the weather like in Harlingen in May?

In May, Harlingen is cool: daytime highs average 14 °C, and nights cool down to about 10 °C. The sea averages 12.2 °C – swimming is only for the hardy. The sun shines for around 8 hours a day. Rain is frequent, with about 12 rainy days and 66 mm in total. It is often windy, with gusts of around 29 km/h. All in all, May is not an ideal month for a holiday in Harlingen.

May compared

How the weather changes from April to June. Tap a month to open it.

AprilAprMayMayJuneJun
Score252523
Day11°14°17°
Night7°10°13°
Sea9°12°15°
Sun7 h8 h8 h
Rain days101212

More details for May

Daylight
15 h 48 min05:40 – 21:28
UV index
6 · highclear sky, noon (estimate)All months
Muggy days
0 daysdew point 18 °C or moreAll months
Wind
29 km/haverage daily peakAll months
Cloud cover
61 %on averageAll months
Hot days
0 days30 °C or more
Snow days
0 days1 cm or more of fresh snow
Time zone
UTC+2Europe/Amsterdam

How the score comes together

  • Temperatureweight 35 %0 %
  • Seaweight 25 %0 %
  • Sunshineweight 20 %78 %
  • Few rainy daysweight 20 %46 %

Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.

What to pack in May

  • Sunscreen
  • Sunglasses & sun hat
  • A jumper for the evenings
  • Rain jacket or umbrella
  • Windproof jacket

Harlingen in May: quick answers

Is Harlingen hot in May?

No. In May, Harlingen is cool: daytime highs average 14 °C and nights drop to about 10 °C.

Can you swim in Harlingen in May?

Only if you don't mind cold water: in May the sea averages just 12.2 °C. Comfortable swimming temperatures are not reached at any time of year.

Does it rain much in Harlingen in May?

Rain is frequent, with about 12 rainy days and 66 mm in total.

Harlingen month by month

Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences