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Grotta surfForecast / Reykjanes Peninsula / Iceland
12 Day Weather and Surf, issued 11 pm Wednesday 30 Apr 2025 GMT
Best Forecast Surf Conditions for Grotta this week:
The surf forecast for Grotta over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (May 02) at 9PM. The primary swell is predicted to be 1.1m and 10s period. The wind is predicted to be cross-shore as the swell arrives.
The most powerful waves expected at Grotta in the next 12 days are 3.0m 10s and forecast to arrive on Wednesday (May 07) at 3AM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (GMT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Fri 2nd May) | 3.5ft (1.1m) 10s |
| Best Surf | 9PM (Tue 6th May) | 10ft (3.0m) 10s |
| Most Powerful | 3AM (Wed 7th May) | 10ft (3.0m) 10s |
Table - best surf conditions forecast for Grotta over the next 12 days.
Thursday 01 | Friday 02 | Saturday 03 | Sunday 04 | Monday 05 | Tuesday 06 | Wednesday 07 | Thursday 08 | Friday 09 | Saturday 10 | Sunday 11 | Mon 12 | |||||||||||||||||||||||||
| Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  |  |  |  |  |  | |||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 13 | 12 | 11 | 9 | 10 | 10 | 10 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 7 | 8 | 9 | 10 | 11 | 10 | 11 | 10 | 10 | 9 | 12 | 12 | 12 | 11 | 10 | 9 | 8 | 7 | 7 | 6 | 6 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 649 | 285 | 337 | 161 | 346 | 320 | 205 | 80 | 65 | 38 | 25 | 33 | 33 | 33 | 53 | 78 | 277 | 339 | 1967 | 1850 | 569 | 705 | 458 | 307 | 430 | 2702 | 4001 | 2314 | 1185 | 640 | 263 | 101 | 55 | 23 | 13 | 7 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | on | on | cross- on | cross- off | cross- off | glass | cross | cross- off | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- on | cross- on | cross | cross- off | cross- off | cross- off | cross- on | cross- on | cross- on | cross | cross | cross | cross- on | glass | cross | cross | cross- on |
High Tide / height (m) | 8:46AM 3.72 | 9:08PM 4.04 | 9:39AM 3.42 | 10:03PM 3.73 | 10:36AM 3.12 | 11:03PM 3.42 | 11:42AM 2.87 | 12:13AM 3.17 | 1:02PM 2.75 | 1:36AM 3.07 | 2:32PM 2.82 | 2:52AM 3.11 | 3:36PM 3.02 | 3:46AM 3.22 | 4:20PM 3.23 | 4:28AM 3.32 | 4:57PM 3.42 | 5:04AM 3.41 | 5:29PM 3.58 | 5:37AM 3.47 | 5:59PM 3.68 | 6:08AM 3.49 | ||||||||||||||
Low Tide / height (m) | 2:37AM 0.29 | 2:48PM 0.42 | 3:29AM 0.59 | 3:38PM 0.75 | 4:26AM 0.93 | 4:34PM 1.08 | 5:31AM 1.21 | 5:43PM 1.35 | 6:50AM 1.37 | 7:10PM 1.47 | 8:18AM 1.35 | 8:40PM 1.39 | 9:23AM 1.20 | 9:42PM 1.20 | 10:08AM 1.02 | 10:27PM 1.00 | 10:44AM 0.87 | 11:05PM 0.84 | 11:16AM 0.75 | 11:38PM 0.73 | 11:46AM 0.68 | 12:10AM 0.67 | 12:15PM 0.65 | |||||||||||||
Thursday 01 | Friday 02 | Saturday 03 | Sunday 04 | Monday 05 | Tuesday 06 | Wednesday 07 | Thursday 08 | Friday 09 | Saturday 10 | Sunday 11 | Mon 12 | |||||||||||||||||||||||||
| Sunrise | - | 5:01 | - | - | 4:58 | - | - | 4:54 | - | - | 4:50 | - | - | 4:48 | - | - | 4:45 | - | - | 4:41 | - | - | 4:37 | - | - | 4:33 | - | - | 4:31 | - | - | 4:28 | - | - | 4:24 | - |
| Sunset | - | - | 9:50 | - | - | 9:52 | - | - | 9:57 | - | - | 10:00 | - | - | 10:02 | - | - | 10:06 | - | - | 10:09 | - | - | 10:13 | - | - | 10:15 | - | - | 10:20 | - | - | 10:22 | - | - | 10:25 |
 |  | |  |  | |  | | |  | | | |  |  |  | | |  |  | | | | | | | |  | | | | | | | | | |
Rain (mm) | 1 | - | - | 2 | - | - | - | - | - | - | - | - | - | 2 | 6 | - | - | - | 7 | - | - | - | 1 | - | 7 | 1 | 2 | 5 | - | 1 | 2 | 8 | 2 | - | 2 | 1 |
| Temp. °C | 6 | 5 | 5 | 6 | 6 | 7 | 8 | 8 | 9 | 8 | 8 | 9 | 9 | 9 | 8 | 8 | 8 | 9 | 9 | 7 | 7 | 6 | 10 | 9 | 9 | 6 | 7 | 7 | 9 | 9 | 9 | 4 | 3 | 5 | 6 | 6 |
| Feels °C (?) | 3 | -2 | -1 | 2 | 0 | 2 | 4 | 6 | 7 | 5 | 5 | 7 | 7 | 3 | 5 | 4 | 3 | 5 | 4 | 0 | 0 | 0 | 3 | 1 | -1 | -4 | -2 | -1 | 3 | 3 | 4 | -1 | 1 | 1 | 0 | 0 |
Short Range Forecast: Light rain (total 3mm), mostly falling on Wed night. Mild temperatures (max 9°C on Sat afternoon, min 4°C on Thu morning). Winds decreasing (fresh winds from the WNW on Wed night, calm by Sat morning). | Days 3-6 Weather Summary Light rain (total 8mm), mostly falling on Mon afternoon. Mild temperatures (max 9°C on Sun afternoon, min 7°C on Sat night). Wind will be generally light. | Days 6-9 Weather Summary Moderate rain (total 18mm), heaviest on Thu night. Very mild (max 10°C on Thu morning, min 4°C on Thu night). Winds increasing (light winds from the SSE on Wed night, near gales from the SSE by Thu night). | Long Range Forecast: Heavy rain (total 22mm), heaviest during Fri night. Mild temperatures (max 9°C on Sat morning, min 2°C on Sun morning). Winds decreasing (fresh winds from the SSW on Fri night, calm by Sun afternoon). | |||||||||||||||||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Grotta surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Grotta Surf forecast
The above surf forecast table for Grotta provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Grotta can be found by selecting the local surf guide option on the grey menu. Our Grotta 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 (Grotta) 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 Grotta 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.
Grotta is 3 km (2 miles) from Reykjavik. If you plan a holiday in Reykjanes Peninsula, look for hotels and other accommodation in Reykjavik. Reykjavik has rooms for a wide range of budgets as well as car hire and transport links.
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