18 of the 28 destinations the atlas holds in USA are in season in September.
Modelled over half3of the 18 in season, on a spot's own series
Under the 50% bar9riders name the month, the model reads lower
No series6riders' months are all there is
The recorded main wind is a thermal sea breeze at 9 and a trade wind at 4. The highest modelled share of windy days in September is 87% at San Francisco Bay; the share is known for 12 of the 18. 13 of them have a spot that takes beginners.
Level
Water
Showing all 18 destinations.
What modelled windy, riders' months and no series mean
modelled windy
The modelled series at one of the destination's spots puts September at half its days or more with three or more hours over 12 knots. That share is enough on its own: a spot here may or may not also name September among its best months.
riders' months
A spot names September among its best months while the model reads under half. Both figures are drawn and neither is adjusted.
no series
No spot at the destination carries a usable modelled series, so the months are the ones riders and schools name.
Modelled windy in September
3 destinations
A spot's modelled series reaches 50% of September days or more. That share is enough on its own: a destination here may or may not also have a spot naming September among its best months.
Modelled share of windy days by month: Mar 50%, Apr 77%, May 89%, Jun 100%, Jul 100%, Aug 92%, Sep 87%, Oct 37%. No figure for Jan, Feb, Nov, Dec. In season: Mar, Apr, May, Jun, Jul, Aug, Sep, Oct.
Modelled share of windy days by month: Jan 61%, Feb 79%, Mar 71%, Apr 68%, May 60%, Jun 45%, Jul 44%, Aug 42%, Sep 50%, Oct 58%, Nov 68%, Dec 61%. In season: Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec.
617971686045444250586861
5 spots5 in season7 schools
Photo: Ken Lund, CC BY-SA 2.0, via Wikimedia Commons
Modelled share of windy days by month: Jan 63%, Feb 68%, Mar 71%, Apr 85%, May 71%, Jun 85%, Jul 66%, Sep 53%, Oct 55%, Nov 62%, Dec 47%. No figure for Aug. In season: Jan, Feb, Mar, Apr, May, Jun, Jul, Sep, Oct, Nov, Dec.
63687185718566-53556247
3 spots2 in season7 schools
Photo: Brendajane at English Wikipedia / Wikimedia Commons (public domain)
Riders name it; the model does not
9 destinations
A spot lists September among its best months and the modelled share is below half. These are not weaker places: both figures are drawn and neither is adjusted.
Modelled share of windy days by month: May 58%, Jun 65%, Jul 68%, Aug 52%, Sep 48%, Oct 24%. No figure for Jan, Feb, Mar, Apr, Nov, Dec. In season: May, Jun, Jul, Aug, Sep, Oct.
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8 spots8 in season6 schools
USDA Forest Service, Pacific Northwest Region (public domain)
Modelled share of windy days by month: Feb 60%, Mar 60%, Apr 45%, May 50%, Jun 35%, Jul 32%, Aug 35%, Sep 40%, Oct 42%, Nov 53%. No figure for Jan, Dec. In season: Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov.
-60604550353235404253-
6 spots3 in season3 schools
Photo: John Phelan, CC BY-SA 3.0, via Wikimedia Commons
Modelled share of windy days by month: Mar 31%, Apr 33%, May 39%, Jun 35%, Jul 40%, Aug 26%, Sep 28%, Oct 11%, Nov 15%. No figure for Jan, Feb, Dec. In season: Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov.
Modelled share of windy days by month: Apr 2%, May 2%, Jun 0%, Jul 0%, Aug 3%, Sep 0%, Oct 2%, Nov 7%. No figure for Jan, Feb, Mar, Dec. In season: Apr, May, Jun, Jul, Aug, Sep, Oct, Nov.
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6 spots5 in season6 schools
Photo: Kirt Edblom, CC BY-SA 2.0, via Wikimedia Commons
Modelled share of windy days by month: Mar 32%, Apr 23%, May 11%, Jun 25%, Jul 29%, Aug 24%, Sep 13%, Oct 11%, Nov 28%. No figure for Jan, Feb, Dec. In season: Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov.
--322311252924131128-
2 spots2 in seasonno school on the atlas
Steven Pavlov, CC BY-SA 4.0, via Wikimedia Commons
Modelled share of windy days by month: Mar 31%, Apr 32%, May 37%, Sep 17%. No figure for Jan, Feb, Jun, Jul, Aug, Oct, Nov, Dec. In season: Mar, Apr, May, Sep.
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3 spots2 in season4 schools
Antony-22, CC BY-SA 4.0, via Wikimedia Commons
Show all 3 more in Riders name it; the model does not
Modelled share of windy days by month: Mar 23%, Apr 25%, May 29%, Jun 20%, Jul 8%, Aug 15%, Sep 23%. No figure for Jan, Feb, Oct, Nov, Dec. In season: Mar, Apr, May, Jun, Jul, Aug, Sep.
--2325292081523---
2 spots1 in season2 schools
gailhampshire from Cradley, Malvern, U.K / CC BY 2.0 via Wikimedia Commons
Modelled share of windy days by month: Jan 50%, Feb 72%, Mar 61%, Apr 63%, May 37%, Sep 23%, Oct 68%, Nov 77%, Dec 58%. No figure for Jun, Jul, Aug. In season: Jan, Feb, Mar, Apr, May, Sep, Oct, Nov, Dec.
Modelled share of windy days by month: May 5%, Jun 23%, Jul 6%, Aug 11%, Sep 7%, Oct 10%. No figure for Jan, Feb, Mar, Apr, Nov, Dec. In season: May, Jun, Jul, Aug, Sep, Oct.
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2 spots1 in season4 schools
Scott Rettberg from Bergen, Norway, CC BY-SA 2.0, via Wikimedia Commons
No wind series here
6 destinations
In season on riders' months alone: no spot at these destinations carries a usable modelled series.
No figure for Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec. In season: Jan, Feb, Mar, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec.
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2 spots1 in season1 school
Visitor7, CC BY-SA 3.0, via Wikimedia Commons
How this list is ordered, and what puts a destination on it
Ordered by the modelled share of windy days in September where a spot carries a series (12 of 18 here); where a destination groups several spots, the share shown is the best of them, and the spot it was modelled at is printed under the figure on every card.