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Coldest sea in Netherlands

68 coastal locations in Netherlands ranked by year-round average sea temperature, coldest first. The regional average is 12.4°C. The top of the list is where the water stays cold all year. The contrast list at the bottom shows the warmest coasts for context.

Coldest location

Groningen

Year-round average 11.5°C in Netherlands

Regional average

12.4°C

across all 68 Netherlands coastal locations

Coldest month

February

6.1°C region-wide average

Netherlands monthly average 6.1°C to 19.5°C
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  • Warmest month August 19.5°C
  • Coldest month February 6.1°C
  • Annual mean 12.4°C
  • Months above 20°C 0 of 12

Month by month across Netherlands

Sea temperatures in Netherlands swing from 6.1°C in February to 19.5°C in August on average across every coast we track. That spread of 13°C hides much bigger swings at individual locations.

Want a specific month? Pick one for a dedicated ranking:

Netherlands sea temperature map

Today's pin colours show the latest daily reading at every Netherlands location we track. Cool blues cluster around the high-latitude coasts.

Zoom in to see individual locations. Click a pin for water temperatures. View list →
°C -2 0 1 3 5 7 9 11 13 15 17 19 21 24 27 30 35

Top 50 coldest locations in Netherlands

Coastal locations across Netherlands sorted by year-round average, coldest first. Honest cold-water swimming country. Click any place for its 30-day chart, monthly profile, and 10-year history.

# Location Annual mean
1 Groningen 11.5°C
2 Huibertgat Groningen 11.9°C
3 Nes 12.0°C
4 Almere Stad 12.0°C
5 Enkhuizen 12.0°C
6 Lemmer 12.0°C
7 Urk 12.0°C
8 Harlingen 12.1°C
9 Makkum 12.1°C
10 Den Oever 12.1°C
11 Hoorn 12.1°C
12 Medemblik 12.1°C
13 Terschelling Noordzee Terschelling 12.2°C
14 Den Helder 12.2°C
15 Texel 12.2°C
16 K13 Alpha North Holland 12.2°C
17 Castricum 12.3°C
18 Egmond Aan Zee 12.3°C
19 Amsterdam 12.3°C
20 Bloemendaal aan Zee 12.3°C
21 Holland 12.3°C
22 IJmuiden 12.3°C
23 Marken 12.3°C
24 Monnickendam 12.3°C
25 Volendam 12.3°C
Show 25 more ▸
26 Wijk aan Zee 12.3°C
27 Zandvoort 12.3°C
28 Texel Noordzee Texel 12.4°C
29 Petten zuid North Holland 12.4°C
30 Delft 12.5°C
31 Katwijk 12.5°C
32 Noordwijk 12.5°C
33 Scheveningen 12.5°C
34 The Hague 12.5°C
35 Wassenaar 12.5°C
36 Kijkduin 12.5°C
37 Hoek Van Holland 12.6°C
38 Rotterdam 12.6°C
39 Willemstad 12.6°C
40 Grevelingen 12.6°C
41 Ouddorp 12.6°C
42 Bruinisse 12.6°C
43 Renesse 12.6°C
44 Scharendijke 12.6°C
45 Tholen 12.6°C
46 Yerseke 12.6°C
47 Meetpost Noordwijk South Holland 12.6°C
48 Borssele 12.6°C
49 Middelburg 12.6°C
50 Vlissingen 12.6°C

Warmest 10 in Netherlands for contrast

Same data flipped. Useful if you want to know which Netherlands coasts stay warmest year-round before you commit to a cold-water swim trip.

# Location Annual mean
1 Lichteiland Goeree South Holland 12.8°C
2 Bath Zeeland 12.8°C
3 Bergse Diepsluis west Zeeland 12.8°C
4 Hansweert Zeeland 12.8°C
5 Haringvliet 10 South Holland 12.8°C
6 Krammersluizen west Zeeland 12.8°C
7 Roompot binnen Zeeland 12.8°C
8 Roompot buiten Zeeland 12.8°C
9 Stavenisse Zeeland 12.8°C
10 Terneuzen Zeeland 12.8°C

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