Swimming in Iceland in august 2025 Sea temperature by city in august

Do you want to go to the beach in Iceland in august 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 august in Iceland by city and our opinion on the chances of enjoying pleasant sea conditions.

Sea temperature in Iceland in august 2025

Here, find the average sea temperature in Iceland in august in several coastal cities.

South West in august

Reykjavík

on average:

53°F

min: 50°F / max: 56°F

Grindavík

on average:

53°F

min: 51°F / max: 56°F

Keflavík

on average:

53°F

min: 50°F / max: 55°F

Suðurnesjabær

on average:

53°F

min: 50°F / max: 55°F

Kopavogur

on average:

53°F

min: 50°F / max: 55°F

Mosfellsbaer

on average:

53°F

min: 50°F / max: 56°F

North in august

Akureyri

on average:

49°F

min: 47°F / max: 52°F

Raufarhöfn

on average:

50°F

min: 47°F / max: 53°F

Siglufjördur

on average:

49°F

min: 46°F / max: 52°F

Húsavík

on average:

50°F

min: 47°F / max: 53°F

Hvitserkur

on average:

49°F

min: 46°F / max: 52°F

Miðgarðar

on average:

49°F

min: 46°F / max: 52°F

West in august

Borgarnes

on average:

52°F

min: 49°F / max: 54°F

Ólafsvík

on average:

51°F

min: 49°F / max: 53°F

Snaefellsnes

on average:

51°F

min: 49°F / max: 53°F

Arnarstapi

on average:

51°F

min: 49°F / max: 53°F

Akranes

on average:

53°F

min: 50°F / max: 56°F

Westfjords in august

Djúpavík

on average:

48°F

min: 46°F / max: 51°F

Ísafjörður

on average:

48°F

min: 45°F / max: 50°F

Patreksfjörður

on average:

48°F

min: 45°F / max: 50°F

Flatey island

on average:

51°F

min: 49°F / max: 53°F

Hornstrandir

on average:

48°F

min: 46°F / max: 51°F

East in august

Hofn

on average:

52°F

min: 49°F / max: 53°F

Djúpivogur

on average:

52°F

min: 49°F / max: 53°F

Jokulsarlon

on average:

51°F

min: 50°F / max: 54°F

South in august

Vík í Mýrdal

on average:

53°F

min: 52°F / max: 55°F

Dyrholaey

on average:

54°F

min: 52°F / max: 55°F

Vestmannaeyjar (Vestmann island)

on average:

54°F

min: 52°F / max: 55°F

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Sea temperature in july in Iceland

Sea temperature in september in Iceland

Where should you go swimming in Iceland in the month of august?

Swimming in Iceland in august is freezing

In august 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 august! The water temperature is freezing, reaching as low as 50°F (and only 56°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 august: the map of sea temperatures

ideal swimming

pleasant swimming

cool swimming

cold swimming

freezing swimming

Water temperature and seasonal norms in august

Reykjavík

	July	August	September
Average sea temperature	53°F	53°F	50°F
Minimum sea temperature	50°F	50°F	47°F
Maximum sea temperature	56°F	56°F	52°F
Average outside temperature	56°F	54°F	49°F
Maximum outside temperature	58°F	58°F	52°F
Minimum outside temperature	52°F	50°F	47°F
Precipitation	3.2in	3.9in	5.4in
Number of days of precipitation	6 jour(s) (18%)	7 jour(s) (22%)	10 jour(s) (33%)
Cloud cover	63%	60%	66%
Our opinion	freezing swimming	freezing swimming	freezing swimming

More information on swimming in Reykjavík in august

Akureyri

	July	August	September
Average sea temperature	48°F	49°F	46°F
Minimum sea temperature	45°F	47°F	43°F
Maximum sea temperature	52°F	52°F	49°F
Average outside temperature	49°F	47°F	41°F
Maximum outside temperature	58°F	56°F	49°F
Minimum outside temperature	41°F	40°F	34°F
Precipitation	6.1in	6.5in	8.2in
Number of days of precipitation	10 jour(s) (32%)	10 jour(s) (33%)	11 jour(s) (37%)
Cloud cover	65%	65%	65%
Our opinion	freezing swimming	freezing swimming	freezing swimming

More information on swimming in Akureyri in august

Borgarnes

	July	August	September
Average sea temperature	51°F	52°F	49°F
Minimum sea temperature	49°F	49°F	46°F
Maximum sea temperature	54°F	54°F	51°F
Average outside temperature	56°F	54°F	49°F
Maximum outside temperature	58°F	58°F	52°F
Minimum outside temperature	52°F	50°F	47°F
Precipitation	3.2in	3.9in	5.4in
Number of days of precipitation	6 jour(s) (18%)	7 jour(s) (22%)	10 jour(s) (33%)
Cloud cover	63%	60%	66%
Our opinion	freezing swimming	freezing swimming	freezing swimming

More information on swimming in Borgarnes in august

Djúpavík

	July	August	September
Average sea temperature	48°F	48°F	46°F
Minimum sea temperature	44°F	46°F	43°F
Maximum sea temperature	52°F	51°F	49°F
Average outside temperature	52°F	50°F	47°F
Maximum outside temperature	56°F	54°F	50°F
Minimum outside temperature	49°F	47°F	43°F
Precipitation	2.5in	2.6in	3.8in
Number of days of precipitation	4 jour(s) (13%)	4 jour(s) (12%)	6 jour(s) (20%)
Cloud cover	60%	61%	64%
Our opinion	freezing swimming	freezing swimming	freezing swimming

More information on swimming in Djúpavík in august

Grindavík

	July	August	September
Average sea temperature	53°F	53°F	51°F
Minimum sea temperature	50°F	51°F	48°F
Maximum sea temperature	57°F	56°F	53°F
Average outside temperature	54°F	54°F	50°F
Maximum outside temperature	56°F	56°F	52°F
Minimum outside temperature	52°F	52°F	49°F
Precipitation	4in	4.9in	8in
Number of days of precipitation	6 jour(s) (18%)	7 jour(s) (24%)	13 jour(s) (42%)
Cloud cover	60%	60%	64%
Our opinion	freezing swimming	freezing swimming	freezing swimming

More information on swimming in Grindavík in august

List of coastal cities in Iceland

Reykjavík in august	freezing swimming
Akureyri in august	freezing swimming
Borgarnes in august	freezing swimming
Djúpavík in august	freezing swimming
Grindavík in august	freezing swimming
Hofn in august	freezing swimming
Ísafjörður in august	freezing swimming
Ólafsvík in august	freezing swimming
Patreksfjörður in august	freezing swimming
Raufarhöfn in august	freezing swimming
Siglufjördur in august	freezing swimming
Snaefellsnes in august	freezing swimming
Vík í Mýrdal in august	freezing swimming
Arnarstapi in august	freezing swimming
Djúpivogur in august	freezing swimming
Dyrholaey in august	freezing swimming
Flatey island in august	freezing swimming
Hornstrandir in august	freezing swimming
Húsavík in august	freezing swimming
Hvitserkur in august	freezing swimming
Jokulsarlon in august	freezing swimming
Keflavík in august	freezing swimming
Miðgarðar in august	freezing swimming
Suðurnesjabær in august	freezing swimming
Þórshöfn in august	freezing swimming
Akranes in august	freezing swimming
Dalvik in august	freezing swimming
Kopavogur in august	freezing swimming
Mosfellsbaer in august	freezing swimming
Seltjarnarnes in august	freezing swimming
Vestmannaeyjar (Vestmann island) in august	freezing swimming
Vogar in august	freezing swimming