Sea · California · United States
Half Moon Bay
Kite days peak in April at 44 %.
A kite day has at least 3 hours of 12 to 35 knots (gusts up to 45) between 10:00 and 19:00, in daylight. Percentages are the share of such days in each month, counted over 9 years.
- Prime 60 % and more
- Good 40 to 59 %
- Possible 20 to 39 %
- Off under 20 %
- No data hatched
- Ringed: this month
Prime also needs a good month in at least 7 of the 9 years, so one freak year cannot make a month Prime. A month with 60 %+ but fewer good years shows as Good.
Confidence mediumThe nearest model grid cell is 10 km away.
Month by month
- Kite days
- 23 % Possibleabout 7 of 31 days
- Too light, kiteable, too strong
- Too light 77 %
- Kiteable 23 %
- Too strong 0 %
- 10 day trip
- 1 in 10 trips got at least 5 kite days, about 2.4 expected
- Best hours
- 14:00 to 16:00when the wind is most often 12 to 35 knots
- Daylight
- 11.3 h
- Water
- 15 °C, 4/3
- Air
- 16 °Cdaily maximum, 15 °C during kite hours
- Rain
- 3 of 31with 1 mm or more
- In one sentence
In October, Half Moon Bay averaged 7 kite days out of 31 (23 %). Water 15 °C, 4/3. 1 in 10 trips of 10 days starting in October got at least 5 kite days.
| Kite days% of days | 30 | 41 | 43 | 44 | 42 | 32 | 10 | 8 | 14 | 23 | 24 | 31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Verdictshare plus good years | Possible | Good | Good | Good | Good | Possible | Off | Off | Off | Possible | Possible | Possible |
| 10 day tripof 10 trips, 5+ kite days | 2 in 10 | 4 in 10 | 5 in 10 | 5 in 10 | 4 in 10 | 2 in 10 | under 1 in 10 | under 1 in 10 | 1 in 10 | 1 in 10 | 1 in 10 | 3 in 10 |
| Good yearsof 0, reached 50 % | · | · | · | · | · | · | · | · | · | · | · | · |
| Best hourshour of day, most often 12 to 35 kn | 10 to 16 | 13 to 17 | 11 to 18 | 14 to 18 | 12 to 17 | 14 to 16 | 12 to 16 | · | 15 to 16 | 14 to 16 | 12 to 16 | 12 to 15 |
| Daylighth | 9.9 | 10.8 | 11.9 | 13.1 | 14.2 | 14.7 | 14.5 | 13.6 | 12.5 | 11.3 | 10.2 | 9.6 |
| Water°C at the surface | 13 | 12 | 12 | 12 | 12 | 13 | 14 | 15 | 16 | 15 | 14 | 14 |
| Air°C, daily maximum | 13 | 13 | 12 | 12 | 12 | 13 | 14 | 15 | 16 | 16 | 14 | 13 |
| Rain days1 mm or more | 10 of 31 | 9 of 28 | 12 of 31 | 5 of 30 | 3 of 31 | 0 of 30 | 1 of 31 | 1 of 31 | 2 of 30 | 3 of 31 | 7 of 30 | 11 of 31 |
| Wetsuitfor that water and the air on kite days, + boots and gloves | 6/5+ | 6/5+ | 6/5+ | 5/4 | 5/4 | 5/4 | 4/3 | 4/3 | 4/3 | 4/3 | 5/4 | 5/4 |
- In January, Half Moon Bay averaged 9 kite days out of 31 (30 %). Water 13 °C, 6/5 with boots and gloves. 2 in 10 trips of 10 days starting in January got at least 5 kite days.
- In February, Half Moon Bay averaged 11 kite days out of 28 (41 %). Water 12 °C, 6/5 with boots and gloves. 4 in 10 trips of 10 days starting in February got at least 5 kite days.
- In March, Half Moon Bay averaged 13 kite days out of 31 (43 %). Water 12 °C, 6/5 with boots and gloves. 5 in 10 trips of 10 days starting in March got at least 5 kite days.
- In April, Half Moon Bay averaged 13 kite days out of 30 (44 %). Water 12 °C, 5/4. 5 in 10 trips of 10 days starting in April got at least 5 kite days.
- In May, Half Moon Bay averaged 13 kite days out of 31 (42 %). Water 12 °C, 5/4. 4 in 10 trips of 10 days starting in May got at least 5 kite days.
- In June, Half Moon Bay averaged 10 kite days out of 30 (32 %). Water 13 °C, 5/4. 2 in 10 trips of 10 days starting in June got at least 5 kite days.
- In July, Half Moon Bay averaged 3 kite days out of 31 (10 %). Water 14 °C, 4/3. under 1 in 10 trips of 10 days starting in July got at least 5 kite days.
- In August, Half Moon Bay averaged 2 kite days out of 31 (8 %). Water 15 °C, 4/3. under 1 in 10 trips of 10 days starting in August got at least 5 kite days.
- In September, Half Moon Bay averaged 4 kite days out of 30 (14 %). Water 16 °C, 4/3. 1 in 10 trips of 10 days starting in September got at least 5 kite days.
- In October, Half Moon Bay averaged 7 kite days out of 31 (23 %). Water 15 °C, 4/3. 1 in 10 trips of 10 days starting in October got at least 5 kite days.
- In November, Half Moon Bay averaged 7 kite days out of 30 (24 %). Water 14 °C, 5/4. 1 in 10 trips of 10 days starting in November got at least 5 kite days.
- In December, Half Moon Bay averaged 10 kite days out of 31 (31 %). Water 14 °C, 5/4. 3 in 10 trips of 10 days starting in December got at least 5 kite days.
Good years are not shown here: this spot has no complete per year values, because the two models drift apart over the years. x in 10 reads: of all 10 day trips that started in that month between 2017 and 2025, x in 10 got at least 5 kite days. We cap the figure at 9 in 10 because wind is never a promise. Best hours: the hours from 10:00 on when the wind most often reaches 12 to 35 knots. Rain day: 1 mm or more of rain.
Source: ECMWF IFS 9 km via Open-Meteo, hourly model wind, 2017 to 2025; water temperature 2023 to 2025. How we count kite days and trip odds
Trip odds at Half Moon Bay
How often a trip of your length got at least half its days with kite wind, 2017 to 2025, capped at 9 in 10.
- January2 in 10 trips of 10 days got at least 5 kite days, about 3.0 expected
- February4 in 10 trips of 10 days got at least 5 kite days, about 4.1 expected
- March5 in 10 trips of 10 days got at least 5 kite days, about 4.4 expected
- April5 in 10 trips of 10 days got at least 5 kite days, about 4.3 expected
- May4 in 10 trips of 10 days got at least 5 kite days, about 3.9 expected
- June2 in 10 trips of 10 days got at least 5 kite days, about 3.0 expected
- Julyunder 1 in 10 trips of 10 days got at least 5 kite days, about 0.7 expected
- Augustunder 1 in 10 trips of 10 days got at least 5 kite days, about 0.8 expected
- September1 in 10 trips of 10 days got at least 5 kite days, about 1.7 expected
- October (now)1 in 10 trips of 10 days got at least 5 kite days, about 2.4 expected
- November1 in 10 trips of 10 days got at least 5 kite days, about 2.3 expected
- December3 in 10 trips of 10 days got at least 5 kite days, about 3.4 expected
x in 10 reads: of all 10 day trips that started in that month between 2017 and 2025, x in 10 got at least 5 kite days. We cap the figure at 9 in 10 because wind is never a promise.
Trip odds by start week
Pick your start week and trip length. Each cell: of all trips of that length that started in that week between 2017 and 2025, how many in 10 got at least half their days with kite wind.
Trip odds by start week, 10 day trips, 2017 to 2025
- 4
- 1
- 0
- 2
- 4
- 2
- 4
- 4
- 4
- 3
- 6
- 7
- 6
- 6
- 3
- 3
- 5
- 3
- 5
- 6
- 1
- 3
- 4
- 4
- 1
- 1
- 0
- 0
- 0
- 0
- 0
- 0
- 0
- 1
- 0
- 1
- 0
- 0
- 1
- 1
- 0
- 1
- 1
- 0
- 0
- 2
- 1
- 1
- 1
- 3
- 3
- 5
Colours as in the kite year: 6 in 10 and more like Prime · 4 to 5 in 10 like Good · 2 to 3 in 10 like Possible · under 2 in 10 like Off · No data hatched (fewer than 30 trips) · Ringed: this week · Raised: your start week
x in 10 reads: of all 10 day trips that started in that week between 2017 and 2025, x in 10 got at least 5 kite days. We cap the figure at 9 in 10 because wind is never a promise.
Source: hourly wind from the ECMWF IFS model via Open-Meteo, 2017 to 2025, kiteCOMPASS method v1. How we count
under 1 in 10
trips of 10 days starting in week 45 (e.g. 5 to 11 November) got at least 5 kite days in 2017 to 2025 (63 trips).
Zero wind trips: 1 in 10
about 2.1 kite days expected out of 10
Kite days per trip, 63 trips
Bars right of the line are good trips (5 kite days or more).
How the wind behaves
In April, the windiest month
- Too light 56 %
- Kiteable 44 %
- Too strong 0 %
Too light on 56 %, kiteable on 44 %, too strong on 0 % of days.
Best hours: 14:00 to 18:00, when the wind is most often 12 to 35 knots.
Share of kite days by wind direction, 16 sectors
Wind mostly from NW (315°), fairly steady direction.
Kitesurfing at Half Moon Bay: quick answers
When is the best time to kitesurf at Half Moon Bay?
No month reaches 50 % kite days. The windiest month is April, when 44 % of days were kite days from 2017 to 2025.
Is Half Moon Bay windy in October?
Sometimes. 23 % of days in October were kite days from 2017 to 2025, about 7 days in a typical October. 1 in 10 trips of 10 days starting in October got at least 5 kite days, 2017 to 2025.
What is the water temperature at Half Moon Bay?
The water ranges from 12 °C in February to 16 °C in September. In October it is about 15 °C (wetsuit: 4/3).
How many kite days does Half Moon Bay get in a year?
About 103 days a year were kite days from 2017 to 2025, out of 365. A kite day has at least 3 hours of 12 to 35 kn model wind between 10:00 and 19:00 in daylight, with gusts up to 45 kn.
Live forecast
The numbers above are long term averages. The forecast shows the next days.
Live forecast from Windy
The forecast map for Half Moon Bay comes from windy.com (Windyty SE, Prague, Czech Republic) and opens right here on this page. Once you load it, your browser contacts Windy, which receives your IP address and may set its own cookies. Nothing is loaded before you click.
Spot facts
- Region
- California
- Country
- United States
- Water body
- Sea, from Natural Earth map data
- Nearest airport
- San Francisco International Airport (SFO), 17 km straight line. Flights are not sold here; this is for planning only.
- Time zone
- UTC-07:00 in October
- Coordinates
- 37.4785, -122.4500
- Model
- ECMWF IFS 9 km via Open-Meteo, hourly
Conditions, checked against kite guides
Water state, flat areas, waves and whether schools teach here, from kite sources, not from satellite images.
Not yet checked against kite guides. We research spot conditions one by one and show only what a kite source says.
Nearby kite spots in California
Kite days in October, % of days
- 3rd Ave
United States · 1 point fewer kite days than Half Moon Bay in October
22 %Kite days by month at 3rd Ave: Jan 10 %, Feb 29 %, Mar 35 %, Apr 57 %, May 77 %, Jun 83 %, Jul 78 %, Aug 68 %, Sep 48 %, Oct 22 %, Nov 11 %, Dec 10 % - Ocean Beach
United States · 16 points more kite days than Half Moon Bay in October
39 %Kite days by month at Ocean Beach: Jan 27 %, Feb 43 %, Mar 56 %, Apr 72 %, May 88 %, Jun 95 %, Jul 95 %, Aug 91 %, Sep 72 %, Oct 39 %, Nov 22 %, Dec 27 % - Alameda Beach
United States · 15 points fewer kite days than Half Moon Bay in October
8 %Kite days by month at Alameda Beach: Jan 15 %, Feb 30 %, Mar 29 %, Apr 39 %, May 48 %, Jun 44 %, Jul 19 %, Aug 19 %, Sep 14 %, Oct 8 %, Nov 10 %, Dec 15 % - Crissy Fields
United States · 12 points fewer kite days than Half Moon Bay in October
11 %Kite days by month at Crissy Fields: Jan 14 %, Feb 24 %, Mar 30 %, Apr 39 %, May 60 %, Jun 69 %, Jul 60 %, Aug 51 %, Sep 34 %, Oct 11 %, Nov 10 %, Dec 13 % - Berkeley Marina Kite Launch
United States · 14 points fewer kite days than Half Moon Bay in October
9 %Kite days by month at Berkeley Marina Kite Launch: Jan 13 %, Feb 22 %, Mar 25 %, Apr 26 %, May 44 %, Jun 48 %, Jul 39 %, Aug 32 %, Sep 15 %, Oct 9 %, Nov 7 %, Dec 11 % - Waddell Creek
United States · 11 points more kite days than Half Moon Bay in October
34 %Kite days by month at Waddell Creek: Jan 36 %, Feb 50 %, Mar 46 %, Apr 56 %, May 56 %, Jun 54 %, Jul 42 %, Aug 41 %, Sep 41 %, Oct 34 %, Nov 34 %, Dec 31 % - Stinson Beach
United States · 9 points more kite days than Half Moon Bay in October
32 %Kite days by month at Stinson Beach: Jan 30 %, Feb 48 %, Mar 52 %, Apr 64 %, May 70 %, Jun 68 %, Jul 57 %, Aug 56 %, Sep 48 %, Oct 32 %, Nov 26 %, Dec 32 % - Davenport
United States · 17 points more kite days than Half Moon Bay in October
40 %Kite days by month at Davenport: Jan 36 %, Feb 53 %, Mar 48 %, Apr 62 %, May 63 %, Jun 60 %, Jul 50 %, Aug 52 %, Sep 47 %, Oct 40 %, Nov 33 %, Dec 30 %
Plan your trip
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kiteCOMPASS · method k3h-10to19-v1 · 2017 to 2025
Model wind: ECMWF IFS 9 km via Open-Meteo, hourly, 2017 to 2025. Water temperature: 2023 to 2025. Kite day: at least 3 hours of 12 to 35 kn model wind between 10:00 and 19:00 in daylight, with gusts up to 45 kn. Confidence: medium.
Cite this
In October, 23 % of days at Half Moon Bay met the kiteCOMPASS kite day rule: at least 3 hours of 12 to 35 kn model wind between 10:00 and 19:00 in daylight, with gusts up to 45 kn (ECMWF IFS 9 km via Open-Meteo, hourly, 2017 to 2025). https://kitecompass.app/spot/half-moon-bay
Numbers on this page are free to reuse under CC BY 4.0: name kiteCOMPASS and link to this page.