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After Bay (Thermalito Afterbay) kitesurf and wingfoil spot

United States · Californie

Spot currently openIntermediate levelAltitude 40 m 39.5 | -121.67

Overview

Thermalito Afterbay is a kitesurfing spot located on a reservoir near Oroville in Northern California. This body of water offers thermal winds from the north and west in the afternoon, with flat water conditions suited for intermediate riders. A popular spot for kitesurfers from the Sacramento Valley.
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Spot forecast for After Bay (Thermalito Afterbay)

Sunrise 07:22 · Sunset 18:20

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< 7 kn7–12 kn13–20 kn21–30 kn31–40 kn41+ kn Gusts Your minimum: 7 kn

Forecasts provided by Open-Meteo

After Bay (Thermalito Afterbay): when to go?

Rideable days and hours computed for a minimum wind of 7 knots · log in to set your own (foil, twin-tip…)

Season · peak

97h

in May · 9 rideable days

Wind is uneven from month to month: the best months are May, January and April, at 7 rideable days and 22 °C. The low point is August, at 1.5 days.

Rideable days per month

0 2.5 5 7.5 10 January: 6.5 rideable days J February: 3.5 rideable days F March: 5 rideable days M April: 6.5 rideable days A May: 9 rideable days9 d M June: 5 rideable days J July: 3 rideable days J August: 1.5 rideable days1.5 d A September: 2 rideable days S October: 5.5 rideable days O November: 5 rideable days N December: 4 rideable days D 0 2.5 5 7.5 10 January: 6.5 rideable days J February: 3.5 rideable days F March: 5 rideable days M April: 6.5 rideable days A May: 9 rideable days9 d M June: 5 rideable days J July: 3 rideable days J August: 1.5 rideable days1.5 d A September: 2 rideable days S October: 5.5 rideable days O November: 5 rideable days N December: 4 rideable days D

Wind strength when it is rideable

7-12 knots · 78%13-20 knots · 22%

When the spot works, wind sits mostly between 7 and 12 knots — 78% of rideable hours. Big-kite territory. The coldest month is December, at 12 °C. The wettest month is February, with 163 mm.

Monthly averages: After Bay (Thermalito Afterbay)
Monthly averages — After Bay (Thermalito Afterbay) — averaged over 2 years of records — Weather data by Open-Meteo.com — How it is calculated
Month Rideable days Usable wind Temperature Rain
January 6.5 59 h 14 °C 50 mm
February 3.5 31 h 15 °C 163 mm
March 5.0 35 h 17 °C 70 mm
April 6.5 50 h 24 °C 6 mm
May 9.0 97 h 29 °C 17 mm
June 5.0 54 h 34 °C 0 mm
July 3.0 23 h 36 °C 0 mm
August 1.5 9 h 35 °C 1 mm
September 2.0 14 h 31 °C 1 mm
October 5.5 41 h 26 °C 29 mm
November 5.0 35 h 16 °C 142 mm
December 4.0 26 h 12 °C 140 mm

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Technical details of After Bay (Thermalito Afterbay) spot

N: Rideable NNE: Not rideable NE: Not rideable ENE: Not rideable E: Not rideable ESE: Not rideable SE: Not rideable SSE: Not rideable S: Not rideable SSW: Not rideable SW: Depending on conditions WSW: Rideable W: Rideable WNW: Depending on conditions NW: Depending on conditions NNW: Depending on conditions N E S W

The spot works with winds from N, WSW, W.

Depending on conditions: SW, WNW, NW, NNW.

RideableDepending on conditions Not rideable
Spot opening date · Required level
Spot opening date
Open all year round
Required level
Intermediate

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Oroville Municipal Airport4.4 kmsource noaa

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Nearby spots

All spots: Californie

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