Suðurland, Iceland
Irminger Sea63.40°N, 19.07°WStation IC-SUU-REY

Reynisfjara Sea Water Temperature

A cool beach on the Irminger Sea, warmest around August at about 11.8°C. Today's reading, 7-day forecast, and monthly averages below.

Live readings · auto-updating
Water Temperature NowBuoy & Sentinel-3 SST

Reynisfjara water temperature

10.8
51.4°FVery Cold (< 16°C)

Wetsuit strongly recommended. Sudden entry may cause cold shock. Suitable only for brief, brisk plunges.

+0°vs Sep avgIrminger Sea63.40°N, 19.07°W
Activity Index:SwimmingSnorkelingSurfingTypical conditions
Marine Atmosphere Grid Live Marine Feed
Coastal Air
12°C
54.1°F onshore
Wind Speed
12 km/h
Surface wind
Wave Height
0.8 m
Slight shore chop
Swell
0.6 m
Deep water swell
Wave Period
6 s
Peak interval
UV Index
—
Daily maximum
Sunrise
—
First morning light
Sunset
—
Golden hour close

7-Day Water Temperature Forecast

Open-Meteo ocean model
Today
WedSep 30
10.8°C
51.4°F
Waves: 1m
Very Cold
ThuOct 1
11.1°C
52°F
Waves: 0.9m
Very Cold
FriOct 2
11.2°C
52.2°F
Waves: 0.7m
Very Cold
SatOct 3
11.1°C
52°F
Waves: 0.6m
Very Cold
SunOct 4
10.8°C
51.4°F
Waves: 0.7m
Very Cold
MonOct 5
10.5°C
50.9°F
Waves: 0.9m
Very Cold
TueOct 6
10.4°C
50.7°F
Waves: 1m
Very Cold
Forecast cooling trend: -0.4°C over 7 days at Reynisfjara.
Confidence: High

Reynisfjara Monthly Water Temperature Averages

Historical monthly climatology. The warmest water in Reynisfjara occurs inJune, July, August, September — peaking at11.8°C (53.2°F) in August.

Year-Round Water Temperature Curve (°C / °F)

Hover a bar for details
Current month Comfortable (20–24°C) Warm (24°C+) Cool (<20°C)
8
Jan
8
Feb
8
Mar
8
Apr
8
May
10
Jun
11
Jul
12
Aug
Current
11
Sep
9
Oct
8
Nov
8
Dec
Full 12-month data table — min / avg / max & swimming comfort
MonthMin Water TempAverage Water TempMax Water TempSwimming Comfort
January4.6°C7.7°C8.8°CVery Cold (< 16°C)
February4.7°C7.5°C8.3°CVery Cold (< 16°C)
March5.4°C7.5°C8.3°CVery Cold (< 16°C)
April4.6°C7.7°C8.5°CVery Cold (< 16°C)
May7.2°C8.3°C9°CVery Cold (< 16°C)
June8.2°C9.8°C11.3°CVery Cold (< 16°C)
July9.5°C11.2°C12.9°CVery Cold (< 16°C)
August10.7°C11.8°C13.6°CVery Cold (< 16°C)
SeptemberCurrent8.5°C10.8°C12.4°CVery Cold (< 16°C)
October7.7°C9.2°C11°CVery Cold (< 16°C)
November7.3°C8.3°C9.1°CVery Cold (< 16°C)
December6.3°C7.9°C8.8°CVery Cold (< 16°C)

Swimming FAQs for Reynisfjara

Is the sea warm enough to swim in Reynisfjara today?

Typical sea surface temperature in Reynisfjara this time of year is 10.8°C (51.4°F) — classified as Very Cold (< 16°C). Wetsuit strongly recommended. Sudden entry may cause cold shock. Suitable only for brief, brisk plunges. Live readings load automatically.

What are the warmest months for swimming in Reynisfjara?

The highest water temperatures in Reynisfjara typically occur duringJune, July, August, September, when monthly averages reach peak seasonal levels.

What is the typical water temperature in Reynisfjara in September?

Historically in September, water temperatures in Reynisfjara average around10.8°C (51.4°F), fluctuating between a recorded minimum of 8.5°C and a maximum of 12.4°C.

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