Grindavik Lighthouse ( Hopsnesta) surfForecast / Reykjanes Peninsula / Iceland

information circle12 Day Weather and Surf, issued 5 am Monday 18 Aug 2025 GMT
Forecast update in hr  min  s Forecast update imminent
Grindavik Lighthouse ( Hopsnesta) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Grindavik Lighthouse ( Hopsnesta) sea temperature is
12.1° C
(Which is slightly warmer than usual)


Best Forecast Surf Conditions for Grindavik Lighthouse ( Hopsnesta) this week:

The surf forecast for Grindavik Lighthouse ( Hopsnesta) over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 18) at 9PM. The primary swell is predicted to be 0.6m and 9s period with a secondary swell of 0.8m and 7s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Grindavik Lighthouse ( Hopsnesta) in the next 12 days are 2.2m 11s and forecast to arrive on Friday (Aug 22) at 3AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 6s period and expected on Thursday (Aug 21) at 3PM.

Wave TypeTime (GMT) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Mon 18th Aug)2.5ft (0.8m) 7s
Best Surf 3PM (Sat 23rd Aug)5ft (1.6m) 6s
Most Powerful 3AM (Fri 22nd Aug)7ft (2.2m) 11s

Table - best surf conditions forecast for Grindavik Lighthouse ( Hopsnesta) over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Very mild (max 12°C on Mon morning, min 10°C on Mon night). Wind will be generally light.

Days 3-6 Weather Summary Heavy rain (total 29mm), heaviest during Fri night. Very mild (max 12°C on Fri morning, min 10°C on Thu morning). Mainly fresh winds.

Monday
18
Tuesday
19
Wednesday
20
Thursday
21
Friday
22
Saturday
23
Sunday
24
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1
WSW
0.9
WSW
0.7
SSW
0.3
SSW
0.4
SW
0.4
SSE
0.4
SE
0.4
SE
0.4
SE
0.3
SW
0.4
SSW
1.9
S
2
S
1.7
S
1.5
S
1.3
SSE
1.6
SE
1.9
SSE
1.4
SE
1.7
SSE
2
SSE
Period(s) (?)8781310766714141111109768777
Wave
Graph
(?)Metric surfscale
Energy (?)15114213688633626252346100946936567451266337495376448532
Wind
(km/h)
15
NNW
15
NW
15
SSE
15
SE
10
SE
5
N
10
N
5
WNW
10
ESE
20
ESE
30
SE
30
SE
30
ESE
25
ESE
30
ESE
30
SE
10
SE
10
SSW
25
E
30
SE
50
SSE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
cross-
on
cross-
off
cross-
off
cross-
off
glasscrosscross-
on
cross-
off
cross-
off
cross-
off
cross-
off
offcross-
off
cross-
off
cross-
off
cross-
off
crossoffcross-
off
cross-
off
High Tide
/ height (m)
1:46PM
2.52
2:30AM
2.23
3:16PM
2.65
3:52AM
2.38
4:22PM
2.86
4:49AM
2.58
5:13PM
3.07
5:34AM
2.77
5:54PM
3.23
6:13AM
2.93
6:31PM
3.31
6:47AM
3.03
7:04PM
3.32
Low Tide
/ height (m)
8:22PM
0.99
8:40AM
0.90
9:46PM
0.83
9:54AM
0.73
10:45PM
0.61
10:50AM
0.50
11:31PM
0.40
11:34AM
0.30
12:09AM
0.23
12:13PM
0.15
12:43AM
0.13
12:49PM
0.08
1:15AM
0.09
Monday
18
Tuesday
19
Wednesday
20
Thursday
21
Friday
22
Saturday
23
Sunday
24
Sunrise5:30--5:33--5:35--5:39--5:41--5:45--5:48--
Sunset-9:34--9:30--9:27--9:23--9:21--9:16--9:14-
part cloudpart cloudcloudpart cloudclearclearpart cloudpart cloudpart cloudpart cloudcloudcloudcloudcloudheavy rainmod rainlight raincloudlight rainlight rainmod rain
Rain (mm)
--------------1874-448
Temp. °C121211101111111111111011121212121211121212
Feels °C (?)99117101110996457887119563
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Eyeball surf reportRecent Eyeball Surf Reports for Reykjanes Peninsula

  1. weather stationWind Update The wind is still cross-on at Grindavik Lighthouse ( Hopsnesta) (light winds from the NW at Sléttan 14 km from Grindavik Lighthouse ( Hopsnesta)). 0.9m 8s swell from the WSW with a 0.2m 12s groundswell from the S and a 0.2m 13s groundswell, also from the S. 3 swells combining to make bigger set waves.

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1 h 1 min ago

13 km/h
NW
Cross-On
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Information about the Grindavik Lighthouse ( Hopsnesta) Surf forecast

The above surf forecast table for Grindavik Lighthouse ( Hopsnesta) provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Grindavik Lighthouse ( Hopsnesta) can be found by selecting the local surf guide option on the grey menu. Our Grindavik Lighthouse ( Hopsnesta) surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Grindavik Lighthouse ( Hopsnesta)) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Grindavik Lighthouse ( Hopsnesta) may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Grindavik Lighthouse ( Hopsnesta) is 3 km (2 miles) from Grindavik. If you plan a holiday in Reykjanes Peninsula, look for hotels and other accommodation in Grindavik. Grindavik has rooms for a wide range of budgets as well as car hire and transport links.

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