Sea · Hawaii · United States
Rainbows
Best for kiting from March to August and from November to December, with 50 to 72 % kite days. Water 24 to 27 °C.
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 highHourly model data, 2017 to 2025, checked against the season shape of a nearby weather station, a regional model or a documented season.
Month by month
- Kite days
- 35 % Possibleabout 11 of 31 days
- Too light, kiteable, too strong
- Too light 65 %
- Kiteable 35 %
- Too strong 0 %
- 10 day trip
- 4 in 10 trips got at least 5 kite days, about 3.6 expected
- Best hours
- 10:00 to 13:00when the wind is most often 12 to 35 knots
- Daylight
- 11.7 h
- Water
- 27 °C, boardshorts
- Air
- 25 °Cdaily maximum, 25 °C during kite hours
- Rain
- 24 of 31with 1 mm or more
- In one sentence
In October, Rainbows averaged 11 kite days out of 31 (35 %). Water 27 °C, boardshorts. 4 in 10 trips of 10 days starting in October got at least 5 kite days.
| Kite days% of days | 41 | 49 | 52 | 53 | 56 | 58 | 72 | 52 | 41 | 35 | 52 | 50 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Verdictshare plus good years | Good | Good | Good | Good | Good | Good | Prime | Good | Good | Possible | Good | Good |
| 10 day tripof 10 trips, 5+ kite days | 4 in 10 | 6 in 10 | 6 in 10 | 6 in 10 | 6 in 10 | 7 in 10 | 9 in 10 | 5 in 10 | 4 in 10 | 4 in 10 | 6 in 10 | 6 in 10 |
| Good yearsof 0, reached 50 % | · | · | · | · | · | · | · | · | · | · | · | · |
| Best hourshour of day, most often 12 to 35 kn | 10 to 17 | 10 to 17 | 10 to 18 | 10 to 18 | 10 to 18 | 10 to 18 | 10 to 13 | 10 to 13 | 10 to 12 | 10 to 13 | 10 to 17 | 10 to 17 |
| Daylighth | 11.0 | 11.4 | 12.0 | 12.6 | 13.2 | 13.4 | 13.3 | 12.9 | 12.3 | 11.7 | 11.1 | 10.9 |
| Water°C at the surface | 25 | 24 | 24 | 25 | 25 | 26 | 26 | 27 | 27 | 27 | 26 | 25 |
| Air°C, daily maximum | 23 | 23 | 23 | 23 | 24 | 24 | 25 | 25 | 25 | 25 | 25 | 24 |
| Rain days1 mm or more | 17 of 31 | 20 of 28 | 24 of 31 | 26 of 30 | 27 of 31 | 28 of 30 | 30 of 31 | 29 of 31 | 26 of 30 | 24 of 31 | 24 of 30 | 23 of 31 |
| Wetsuitfor that water and the air on kite days, + boots and gloves | shorty | shorty | shorty | shorty | shorty | shorty | shorty | shorts | shorts | shorts | shorty | shorty |
- In January, Rainbows averaged 13 kite days out of 31 (41 %). Water 25 °C, shorty. 4 in 10 trips of 10 days starting in January got at least 5 kite days.
- In February, Rainbows averaged 14 kite days out of 28 (49 %). Water 24 °C, shorty. 6 in 10 trips of 10 days starting in February got at least 5 kite days.
- In March, Rainbows averaged 16 kite days out of 31 (52 %). Water 24 °C, shorty. 6 in 10 trips of 10 days starting in March got at least 5 kite days.
- In April, Rainbows averaged 16 kite days out of 30 (53 %). Water 25 °C, shorty. 6 in 10 trips of 10 days starting in April got at least 5 kite days.
- In May, Rainbows averaged 17 kite days out of 31 (56 %). Water 25 °C, shorty. 6 in 10 trips of 10 days starting in May got at least 5 kite days.
- In June, Rainbows averaged 17 kite days out of 30 (58 %). Water 26 °C, shorty. 7 in 10 trips of 10 days starting in June got at least 5 kite days.
- In July, Rainbows averaged 22 kite days out of 31 (72 %). Water 26 °C, shorty. 9 in 10 trips of 10 days starting in July got at least 5 kite days.
- In August, Rainbows averaged 16 kite days out of 31 (52 %). Water 27 °C, boardshorts. 5 in 10 trips of 10 days starting in August got at least 5 kite days.
- In September, Rainbows averaged 12 kite days out of 30 (41 %). Water 27 °C, boardshorts. 4 in 10 trips of 10 days starting in September got at least 5 kite days.
- In October, Rainbows averaged 11 kite days out of 31 (35 %). Water 27 °C, boardshorts. 4 in 10 trips of 10 days starting in October got at least 5 kite days.
- In November, Rainbows averaged 15 kite days out of 30 (52 %). Water 26 °C, shorty. 6 in 10 trips of 10 days starting in November got at least 5 kite days.
- In December, Rainbows averaged 16 kite days out of 31 (50 %). Water 25 °C, shorty. 6 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 Rainbows
How often a trip of your length got at least half its days with kite wind, 2017 to 2025, capped at 9 in 10.
- January4 in 10 trips of 10 days got at least 5 kite days, about 3.9 expected
- February6 in 10 trips of 10 days got at least 5 kite days, about 5.4 expected
- March6 in 10 trips of 10 days got at least 5 kite days, about 5.0 expected
- April6 in 10 trips of 10 days got at least 5 kite days, about 5.6 expected
- May6 in 10 trips of 10 days got at least 5 kite days, about 5.4 expected
- June7 in 10 trips of 10 days got at least 5 kite days, about 5.8 expected
- July9 in 10 trips of 10 days got at least 5 kite days, about 7.4 expected
- August5 in 10 trips of 10 days got at least 5 kite days, about 4.7 expected
- September4 in 10 trips of 10 days got at least 5 kite days, about 4.0 expected
- October (now)4 in 10 trips of 10 days got at least 5 kite days, about 3.6 expected
- November6 in 10 trips of 10 days got at least 5 kite days, about 5.0 expected
- December6 in 10 trips of 10 days got at least 5 kite days, about 5.3 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
- 3
- 3
- 4
- 4
- 5
- 4
- 6
- 8
- 7
- 6
- 6
- 5
- 5
- 7
- 5
- 6
- 6
- 7
- 5
- 6
- 5
- 7
- 7
- 7
- 7
- 7
- 8
- 9
- 9
- 9
- 8
- 6
- 6
- 5
- 3
- 3
- 7
- 3
- 3
- 1
- 5
- 4
- 4
- 6
- 7
- 8
- 5
- 4
- 5
- 7
- 7
- 7
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
7 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: 2 in 10
about 5.6 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 July, the windiest month
- Too light 28 %
- Kiteable 72 %
- Too strong 0 %
Too light on 28 %, kiteable on 72 %, too strong on 0 % of days.
Best hours: 10:00 to 13:00, when the wind is most often 12 to 35 knots.
Share of kite days by wind direction, 16 sectors
Wind steadily from ENE (68°).
Kitesurfing at Rainbows: quick answers
When is the best time to kitesurf at Rainbows?
The best months are March to August and November to December: from 2017 to 2025, 50 to 72 % of days in those months were kite days.
Is Rainbows windy in October?
Sometimes. 35 % of days in October were kite days from 2017 to 2025, about 11 days in a typical October. 4 in 10 trips of 10 days starting in October got at least 5 kite days, 2017 to 2025.
What is the water temperature at Rainbows?
The water ranges from 24 °C in February to 27 °C in August. In October it is about 27 °C (wetsuit: boardshorts).
How many kite days does Rainbows get in a year?
About 186 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 Rainbows 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
- Hawaii
- Country
- United States
- Water body
- Sea, from Natural Earth map data
- Nearest airport
- Daniel K. Inouye International Airport (HNL), 24 km straight line. Flights are not sold here; this is for planning only.
- Time zone
- UTC-10:00 in October
- Coordinates
- 21.5138, -157.8360
- 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 Hawaii
Kite days in October, % of days
- Kailua
United States · 9 points more kite days than Rainbows in October
44 %Kite days by month at Kailua: Jan 48 %, Feb 59 %, Mar 60 %, Apr 62 %, May 70 %, Jun 73 %, Jul 88 %, Aug 77 %, Sep 60 %, Oct 44 %, Nov 62 %, Dec 60 % - Kim's
United States · 22 points more kite days than Rainbows in October
57 %Kite days by month at Kim's: Jan 49 %, Feb 56 %, Mar 62 %, Apr 70 %, May 74 %, Jun 87 %, Jul 97 %, Aug 88 %, Sep 76 %, Oct 57 %, Nov 67 %, Dec 63 % - Sunset
United States · 12 points more kite days than Rainbows in October
47 %Kite days by month at Sunset: Jan 46 %, Feb 56 %, Mar 58 %, Apr 67 %, May 68 %, Jun 78 %, Jul 92 %, Aug 80 %, Sep 67 %, Oct 47 %, Nov 62 %, Dec 57 % - Kahala
United States · 15 points more kite days than Rainbows in October
50 %Kite days by month at Kahala: Jan 43 %, Feb 50 %, Mar 56 %, Apr 67 %, May 66 %, Jun 77 %, Jul 93 %, Aug 82 %, Sep 67 %, Oct 50 %, Nov 59 %, Dec 58 % - Mokuleia
United States · 10 points more kite days than Rainbows in October
45 %Kite days by month at Mokuleia: Jan 40 %, Feb 50 %, Mar 53 %, Apr 58 %, May 63 %, Jun 75 %, Jul 89 %, Aug 82 %, Sep 67 %, Oct 45 %, Nov 54 %, Dec 48 % - Papohaku Beach
United States · 27 points more kite days than Rainbows in October
62 %Kite days by month at Papohaku Beach: Jan 53 %, Feb 60 %, Mar 59 %, Apr 67 %, May 72 %, Jun 83 %, Jul 94 %, Aug 89 %, Sep 80 %, Oct 62 %, Nov 67 %, Dec 61 % - Shipwreck Beach
United States · 31 points more kite days than Rainbows in October
66 %Kite days by month at Shipwreck Beach: Jan 49 %, Feb 53 %, Mar 62 %, Apr 68 %, May 83 %, Jun 96 %, Jul 99 %, Aug 94 %, Sep 87 %, Oct 66 %, Nov 73 %, Dec 63 % - Kahana
United States · 33 points more kite days than Rainbows in October
68 %Kite days by month at Kahana: Jan 56 %, Feb 62 %, Mar 67 %, Apr 72 %, May 83 %, Jun 93 %, Jul 98 %, Aug 92 %, Sep 87 %, Oct 68 %, Nov 73 %, Dec 67 %
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: high.
Cite this
In October, 35 % of days at Rainbows 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/rainbows
Numbers on this page are free to reuse under CC BY 4.0: name kiteCOMPASS and link to this page.