Swimming in Iceland in may 2025 Sea temperature by city in may
Do you want to go to the beach in Iceland in may 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 may in Iceland by city and our opinion on the chances of enjoying pleasant sea conditions.
Sea temperature in Iceland in may 2025
Here, find the average sea temperature in Iceland in may in several coastal cities.
South West in may
45°F
min: 42°F / max: 48°F
46°F
min: 43°F / max: 49°F
Keflavík
45°F
min: 42°F / max: 48°F
Suðurnesjabær
45°F
min: 42°F / max: 48°F
Kopavogur
45°F
min: 43°F / max: 48°F
Mosfellsbaer
45°F
min: 43°F / max: 48°F
North in may
40°F
min: 34°F / max: 45°F
40°F
min: 33°F / max: 46°F
40°F
min: 34°F / max: 45°F
Húsavík
39°F
min: 33°F / max: 46°F
Hvitserkur
39°F
min: 34°F / max: 45°F
Miðgarðar
39°F
min: 34°F / max: 45°F
West in may
43°F
min: 40°F / max: 47°F
41°F
min: 38°F / max: 45°F
41°F
min: 38°F / max: 45°F
Arnarstapi
41°F
min: 38°F / max: 45°F
Akranes
45°F
min: 42°F / max: 48°F
Westfjords in may
42°F
min: 39°F / max: 44°F
42°F
min: 39°F / max: 45°F
42°F
min: 39°F / max: 44°F
Flatey island
41°F
min: 38°F / max: 45°F
Hornstrandir
42°F
min: 40°F / max: 45°F
East in may
46°F
min: 43°F / max: 48°F
Djúpivogur
46°F
min: 43°F / max: 48°F
46°F
min: 43°F / max: 48°F
South in may
47°F
min: 46°F / max: 49°F
Dyrholaey
48°F
min: 46°F / max: 50°F
Vestmannaeyjar (Vestmann island)
47°F
min: 46°F / max: 50°F
Where should you go swimming in Iceland in the month of may?
Swimming in Iceland in may is freezing
In may in Iceland swimming conditions are generally the same everywhere.
Forget about swimming in Reykjavík, Akureyri, Borgarnes, Djúpavík, Grindavík, Hofn, Ísafjörður, Ólafsvík, Patreksfjörður, Raufarhöfn, Siglufjördur, Snaefellsnes, Vík í Mýrdal, Arnarstapi, Djúpivogur, Dyrholaey, Flatey island, Hornstrandir, Húsavík, Hvitserkur, Jokulsarlon, Keflavík, Miðgarðar, Suðurnesjabær, Þórshöfn, Akranes, Dalvik, Kopavogur, Mosfellsbaer, Seltjarnarnes, Vestmannaeyjar (Vestmann island) and Vogar in may! The water temperature is freezing, reaching as low as 42°F (and only 48°F at the best of times). Our advice: plan on sightseeing, and don't bring your beach towel!
Where to go swimming in Iceland in may: the map of sea temperatures
ideal swimming 
pleasant swimming 
cool swimming 
cold swimming 
freezing swimmingWater temperature and seasonal norms in may
Reykjavík
| May | |||
| Average sea temperature | 45°F | ||
| Minimum sea temperature | 42°F | ||
| Maximum sea temperature | 48°F | ||
| Average outside temperature | 45°F | ||
| Maximum outside temperature | 49°F | ||
| Minimum outside temperature | 41°F | ||
| Precipitation | 3.6in | ||
| Number of days of precipitation | 7 jour(s) (22%) | ||
| Cloud cover | 60% | ||
| Our opinion | freezing swimming |
More information on swimming in Reykjavík in may
Akureyri
| May | |||
| Average sea temperature | 40°F | ||
| Minimum sea temperature | 34°F | ||
| Maximum sea temperature | 45°F | ||
| Average outside temperature | 38°F | ||
| Maximum outside temperature | 45°F | ||
| Minimum outside temperature | 29°F | ||
| Precipitation | 5.1in | ||
| Number of days of precipitation | 8 jour(s) (25%) | ||
| Cloud cover | 65% | ||
| Our opinion | freezing swimming |
More information on swimming in Akureyri in may
Borgarnes
| May | |||
| Average sea temperature | 43°F | ||
| Minimum sea temperature | 40°F | ||
| Maximum sea temperature | 47°F | ||
| Average outside temperature | 45°F | ||
| Maximum outside temperature | 49°F | ||
| Minimum outside temperature | 41°F | ||
| Precipitation | 3.6in | ||
| Number of days of precipitation | 7 jour(s) (22%) | ||
| Cloud cover | 60% | ||
| Our opinion | freezing swimming |
More information on swimming in Borgarnes in may
Djúpavík
| May | |||
| Average sea temperature | 42°F | ||
| Minimum sea temperature | 39°F | ||
| Maximum sea temperature | 44°F | ||
| Average outside temperature | 43°F | ||
| Maximum outside temperature | 47°F | ||
| Minimum outside temperature | 40°F | ||
| Precipitation | 2in | ||
| Number of days of precipitation | 3 jour(s) (9%) | ||
| Cloud cover | 57% | ||
| Our opinion | freezing swimming |
More information on swimming in Djúpavík in may
Grindavík
| May | |||
| Average sea temperature | 46°F | ||
| Minimum sea temperature | 43°F | ||
| Maximum sea temperature | 49°F | ||
| Average outside temperature | 45°F | ||
| Maximum outside temperature | 47°F | ||
| Minimum outside temperature | 43°F | ||
| Precipitation | 5in | ||
| Number of days of precipitation | 8 jour(s) (26%) | ||
| Cloud cover | 58% | ||
| Our opinion | freezing swimming |
More information on swimming in Grindavík in may
List of coastal cities in Iceland
| Reykjavík in may | freezing swimming |
| Akureyri in may | freezing swimming |
| Borgarnes in may | freezing swimming |
| Djúpavík in may | freezing swimming |
| Grindavík in may | freezing swimming |
| Hofn in may | freezing swimming |
| Ísafjörður in may | freezing swimming |
| Ólafsvík in may | freezing swimming |
| Patreksfjörður in may | freezing swimming |
| Raufarhöfn in may | freezing swimming |
| Siglufjördur in may | freezing swimming |
| Snaefellsnes in may | freezing swimming |
| Vík í Mýrdal in may | freezing swimming |
| Arnarstapi in may | freezing swimming |
| Djúpivogur in may | freezing swimming |
| Dyrholaey in may | freezing swimming |
| Flatey island in may | freezing swimming |
| Hornstrandir in may | freezing swimming |
| Húsavík in may | freezing swimming |
| Hvitserkur in may | freezing swimming |
| Jokulsarlon in may | freezing swimming |
| Keflavík in may | freezing swimming |
| Miðgarðar in may | freezing swimming |
| Suðurnesjabær in may | freezing swimming |
| Þórshöfn in may | freezing swimming |
| Akranes in may | freezing swimming |
| Dalvik in may | freezing swimming |
| Kopavogur in may | freezing swimming |
| Mosfellsbaer in may | freezing swimming |
| Seltjarnarnes in may | freezing swimming |
| Vestmannaeyjar (Vestmann island) in may | freezing swimming |
| Vogar in may | freezing swimming |