Surf Forecasts:
Kellys Cove surf forecast from 18 Aug 2026:
- Most powerful swell: Thursday 20 Aug, 2AM (local time) - 5ft (1.6m), 8s period, WNW swell with 294 kJ wave energy.
Best Forecast Surf Conditions for Kellys Cove this week:
The most powerful waves expected at Kellys Cove in the next 16 days are 1.6m 8s and forecast to arrive on Thursday (Aug 20) at 2AM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2AM (Thu 20th Aug) | 5ft (1.6m) 8s |
Table - best surf conditions forecast for Kellys Cove over the next 16 days.
The Lowdown
Alright, let’s be real about the next two weeks. It’s gonna be a grind. Kellys Cove (Ireland) is looking at a long stretch of poor waves and shitty wind. The swell energy is there, but the wind’s got other plans, and it’s gonna be choppy and messy from the 18th all the way through the end of the month.
We got nothing but onshore and cross-on slop until the end of the month, with a couple of days of slightly bigger, but still messy, surf around the 29th and 30th. That’s a week and a half of fighting the wind for a few close-outs. Not fun.
The one beacon of hope is the morning of Wednesday, September 2nd, and it’s a week and a half away. That’s your window. For a few hours, we get a glassy ocean, a light offshore breeze, and a clean 5ft of west-northwest swell. It’s got a short 8-second period so it might be a bit walled, but that clean surface will make it rideable and fun. The water's a warm 63°F, which is a few degrees warmer than usual, so you might get away with a thinner suit.
Saturday the 29th will see some size, with morning waves around 6ft, but that northwest swell is short-period and the wind is cross-onshore, so expect a bumpy, less organized mess.
So, sure, the next two weeks are mostly a bust. But that Wednesday the 2nd morning is a real gem. Set your alarm, be there early, and you’ll get the best waves of the period.
Rusty.
Short Range ForecastMostly dry. Very mild (max 16°C on Wed morning, min 13°C on Tue morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 17°C on Sat afternoon, min 13°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | SW 15 | SW 16 | WNW 7 | SW 15 | SW 15 | WNW 8 | SSW 14 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 6 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | SW 18 | WNW 9 | SW 18 | SW 18 | SW 17 |
Wave Graph  | |||||||||||||||||||||
 kJ | 220 | 208 | 149 | 217 | 223 | 294 | 134 | 158 | 249 | 192 | 186 | 181 | 128 | 142 | 146 | 130 | 114 | 113 | 157 | 120 | 145 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | cross-on | on | on | cross-on | on | on | on | on | on | cross-on | on | on | cross-on | on | on | cross-on | on | on |
High Tide | 3:35PM1.75m | 5:17AM1.17m | 4:18PM1.74m | 7:24AM1.19m | 5:08PM1.73m | 8:52AM1.28m | 6:06PM1.74m | 9:41AM1.36m | 7:05PM1.76m | 10:17AM1.41m | 8:01PM1.80m | 10:45AM1.43m | 8:50PM1.83m | ||||||||
Low Tide | 9:05AM0.70m | 10:35PM0.35m | 9:59AM0.90m | 11:43PM0.32m | 11:13AM1.04m | 00:48AM0.28m | 12:32PM1.10m | 1:48AM0.21m | 1:37PM1.09m | 2:38AM0.13m | 2:30PM1.03m | 3:21AM0.05m | 3:14PM0.95m | 3:58AM-0.02m | |||||||
 | |  |  | | | | | | | |  | | | | | | | | | | |
 | 6:26 | — | — | 6:28 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:31 | — | — | 6:33 | — | — |
 | — | 7:59 | — | — | 7:58 | — | — | 7:55 | — | — | 7:54 | — | — | 7:53 | — | — | 7:52 | — | — | 7:51 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 15 | 13 | 16 | 16 | 14 | 15 | 16 | 14 | 15 | 16 | 14 | 15 | 17 | 15 | 15 | 16 | 15 | 15 | 16 | 14 |
Feels °C | 12 | 13 | 11 | 15 | 14 | 12 | 14 | 13 | 12 | 12 | 12 | 12 | 14 | 15 | 13 | 14 | 14 | 13 | 14 | 12 | 11 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 16 | WNW 7 | WNW 7 | SW 15 | W 11 | W 12 | W 12 | SSW 14 | W 11 | WNW 10 | SSW 13 | WNW 8 | SW 17 | WNW 8 | WNW 8 | SW 18 | WNW 9 | WNW 8 | WNW 8 | WNW 7 |
| kJ | 220 | 208 | 144 | 134 | 223 | 89 | 134 | 132 | 138 | 57 | 37 | 68 | 128 | 74 | 146 | 128 | 114 | 86 | 51 | 49 | 30 |
Swell 2 Height (m) Direction Period (s) | WNW 6 | SSW 13 | SW 14 | SW 15 | W 12 | SW 15 | SSW 14 | SSW 14 | W 11 | SW 14 | SSW 13 | SW 18 | SW 13 | SW 13 | SW 16 | SW 19 | SW 12 | SSW 15 | SSW 14 | SSW 14 | SW 17 |
| kJ | 35 | 66 | 149 | 217 | 74 | 183 | 129 | 136 | 62 | 93 | 68 | 48 | 44 | 43 | 63 | 130 | 38 | 85 | 120 | 120 | 145 |
Swell 3 Height (m) Direction Period (s) | WNW 8 | NW 7 | SW 17 | W 13 | SW 21 | — | WSW 19 | SW 19 | SW 20 | SW 18 | SW 18 | W 13 | SW 17 | W 12 | SSW 12 | SSW 16 | SSW 16 | SW 18 | SW 18 | SW 18 | SSW 14 |
| kJ | 22 | 16 | 70 | 82 | 18 | — | 37 | 14 | 15 | 51 | 49 | 14 | 47 | 12 | 14 | 50 | 50 | 113 | 157 | 111 | 71 |
Wind waves Height (m) Direction Period (s) | — | WNW 8 | — | — | WNW 8 | WNW 8 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 6 | — | WNW 8 | — | — | WNW 8 | — | — | — | — |
| kJ | — | 107 | — | — | 142 | 294 | 117 | 158 | 249 | 192 | 186 | 181 | — | 142 | — | — | 75 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 46 | 101 | 5 | 5 | 101 | 5 | 5 | 101 | 5 | 5 | 101 | 5 | 5 | 74 | 5 | 5 | 46 | 5 | 5 | 46 | 5 |
Best forecast wave conditions in Marin County | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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Information about the Kellys Cove Surf forecast
The above surf forecast table for Kellys Cove provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Kellys Cove can be found by selecting the local surf guide option on the grey menu. Our Kellys Cove 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 (Kellys Cove) 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 Kellys Cove 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.
Kellys Cove is 6 km (4 miles) from the city of San Francisco. If you plan a vacation in Marin County, look for hotels and other accommodation in San Francisco. San Francisco has rooms for a wide range of budgets as well as car hire and transport links.
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