Swimming in the Netherlands in september 2025 Sea temperature by city in september
Do you want to go to the beach in the Netherlands in september 2025? Is it the right month to go for pleasant temperatures and staying in the water for a long time? The answer is on this page with the sea temperatures in september in the Netherlands by city and our opinion on the chances of enjoying pleasant sea conditions.
Sea temperature in the Netherlands in september 2025
Here, find the average sea temperature in the Netherlands in september in several coastal cities.
Holland in september
65°F
min: 63°F / max: 68°F
65°F
min: 63°F / max: 68°F
65°F
min: 62°F / max: 68°F
65°F
min: 63°F / max: 68°F
65°F
min: 63°F / max: 68°F
Den Helder
65°F
min: 62°F / max: 67°F
North in september
Groningen
65°F
min: 61°F / max: 67°F
Wadden
64°F
min: 61°F / max: 68°F
Delfzijl
64°F
min: 61°F / max: 68°F
Harlingen
64°F
min: 61°F / max: 67°F
Meppel
65°F
min: 62°F / max: 68°F
South in september
Vlissingen
66°F
min: 63°F / max: 68°F
Bergen op Zoom
65°F
min: 63°F / max: 68°F
Central in september
Almere Stad
65°F
min: 63°F / max: 68°F
Emmeloord
65°F
min: 62°F / max: 68°F
Kampen
65°F
min: 62°F / max: 68°F
Lelystad
65°F
min: 62°F / max: 68°F
Urk
65°F
min: 62°F / max: 68°F
Zwolle
65°F
min: 62°F / max: 68°F
Where should you go swimming in the Netherlands in the month of september?
Swimming in the Netherlands in september is cool
In september in the Netherlands swimming conditions are generally the same everywhere.
Swimming in september in Amsterdam, Rotterdam, Den Haag, Volendam, Zandvoort, Den Helder, Groningen, Marken, Wadden, Vlissingen, Alkmaar, Almere Stad, Bergen op Zoom, Delfzijl, Emmeloord, Enkhuizen, Harlingen, Hoorn, Kampen, Katwijk aan Zee, Lelystad, Medemblik, Meppel, Urk and Zwolle is possible but the sea is generally cool. So though the sea temperature may sometimes reach 68°F, it can also go as low as 63°F. Note that the average is 65°F.
Where to go swimming in the Netherlands in september: the map of sea temperatures
ideal swimming 
pleasant swimming 
cool swimming 
cold swimming 
freezing swimmingWater temperature and seasonal norms in september
Amsterdam
| September | |||
| Average sea temperature | 65°F | ||
| Minimum sea temperature | 63°F | ||
| Maximum sea temperature | 68°F | ||
| Average outside temperature | 63°F | ||
| Maximum outside temperature | 67°F | ||
| Minimum outside temperature | 58°F | ||
| Precipitation | 3.8in | ||
| Number of days of precipitation | 7 jour(s) (23%) | ||
| Cloud cover | 43% | ||
| Our opinion | cool swimming |
More information on swimming in Amsterdam in september
Rotterdam
| September | |||
| Average sea temperature | 65°F | ||
| Minimum sea temperature | 63°F | ||
| Maximum sea temperature | 68°F | ||
| Average outside temperature | 63°F | ||
| Maximum outside temperature | 67°F | ||
| Minimum outside temperature | 61°F | ||
| Precipitation | 3.7in | ||
| Number of days of precipitation | 7 jour(s) (23%) | ||
| Cloud cover | 43% | ||
| Our opinion | cool swimming |
More information on swimming in Rotterdam in september
Den Haag
| September | |||
| Average sea temperature | 65°F | ||
| Minimum sea temperature | 62°F | ||
| Maximum sea temperature | 68°F | ||
| Average outside temperature | 63°F | ||
| Maximum outside temperature | 67°F | ||
| Minimum outside temperature | 59°F | ||
| Precipitation | 4.3in | ||
| Number of days of precipitation | 7 jour(s) (25%) | ||
| Cloud cover | 43% | ||
| Our opinion | cool swimming |
More information on swimming in Den Haag in september
Volendam
| September | |||
| Average sea temperature | 65°F | ||
| Minimum sea temperature | 63°F | ||
| Maximum sea temperature | 68°F | ||
| Average outside temperature | 61°F | ||
| Maximum outside temperature | 65°F | ||
| Minimum outside temperature | 58°F | ||
| Precipitation | 2.8in | ||
| Number of days of precipitation | 5 jour(s) (17%) | ||
| Cloud cover | 44% | ||
| Our opinion | cool swimming |
More information on swimming in Volendam in september
Zandvoort
| September | |||
| Average sea temperature | 65°F | ||
| Minimum sea temperature | 63°F | ||
| Maximum sea temperature | 68°F | ||
| Average outside temperature | 63°F | ||
| Maximum outside temperature | 65°F | ||
| Minimum outside temperature | 59°F | ||
| Precipitation | 3.7in | ||
| Number of days of precipitation | 6 jour(s) (22%) | ||
| Cloud cover | 45% | ||
| Our opinion | cool swimming |
More information on swimming in Zandvoort in september
List of coastal cities in the Netherlands
| Amsterdam in september | cool swimming |
| Rotterdam in september | cool swimming |
| Den Haag in september | cool swimming |
| Volendam in september | cool swimming |
| Zandvoort in september | cool swimming |
| Den Helder in september | cool swimming |
| Groningen in september | cool swimming |
| Marken in september | cool swimming |
| Wadden in september | cool swimming |
| Vlissingen in september | cool swimming |
| Alkmaar in september | cool swimming |
| Almere Stad in september | cool swimming |
| Bergen op Zoom in september | cool swimming |
| Delfzijl in september | cool swimming |
| Emmeloord in september | cool swimming |
| Enkhuizen in september | cool swimming |
| Harlingen in september | cool swimming |
| Hoorn in september | cool swimming |
| Kampen in september | cool swimming |
| Katwijk aan Zee in september | cool swimming |
| Lelystad in september | cool swimming |
| Medemblik in september | cool swimming |
| Meppel in september | cool swimming |
| Urk in september | cool swimming |
| Zwolle in september | cool swimming |