North Bay Weather
Marin, Sonoma, Napa, Solano, and the warmer valleys north of the Golden Gate. Across the 90 places we track here, summer afternoons range from 55°F at Point Reyes Lighthouse to 93°F at Winters, a 38°F spread.
Standouts
Warmest summer afternoons
93°F
Winters has the warmest summer afternoons, averaging 93°F at the warmest hour.
Coolest summer afternoons
55°F
Point Reyes Lighthouse has the coolest summer afternoons, averaging 55°F.
Foggiest summer mornings
52%
Point Reyes Lighthouse is the foggiest, with fog in about 52% of summer morning hours.
Windiest summer afternoons
16 mph
Sausalito is the windiest on summer afternoons, averaging 16 mph.
Most rain
55 in.
Cobb Mountain Area is the wettest, with about 55 in. of rain a year.
Least rain
16 in.
Birds Landing is the driest, with about 16 in. of rain a year.
Compare all 90 places
| Place | Summer afternoons | Winter lows | Summer morning fog | Summer afternoon wind | Rain per year |
|---|---|---|---|---|---|
| WintersTown · 131 ft | 93°F | 39°F | 1% | 7 mph | 24 in. |
| DavisTown · 52 ft | 92°F | 40°F | 1% | 7 mph | 19 in. |
| CloverdaleTown · 328 ft | 91°F | 38°F | 18% | 9 mph | 40 in. |
| Pope ValleyTown · 620 ft | 91°F | 38°F | 19% | 9 mph | 34 in. |
| DixonTown · 49 ft | 91°F | 40°F | 1% | 8 mph | 20 in. |
| VacavilleTown · 180 ft | 91°F | 40°F | 1% | 9 mph | 23 in. |
| Lake BerryessaTown · 440 ft | 91°F | 38°F | 1% | 8 mph | 27 in. |
| RutherfordTown · 180 ft | 91°F | 39°F | 23% | 8 mph | 31 in. |
| St. HelenaTown · 262 ft | 90°F | 38°F | 24% | 7 mph | 32 in. |
| OakvilleTown · 150 ft | 90°F | 39°F | 24% | 8 mph | 28 in. |
| GeyservilleTown · 262 ft | 90°F | 38°F | 22% | 9 mph | 39 in. |
| Rio VistaTown · 20 ft | 89°F | 40°F | 1% | 11 mph | 17 in. |
| MiddletownTown · 1,050 ft | 89°F | 37°F | 17% | 10 mph | 41 in. |
| YountvilleTown · 92 ft | 88°F | 39°F | 29% | 8 mph | 28 in. |
| HealdsburgTown · 107 ft | 88°F | 39°F | 25% | 9 mph | 41 in. |
| HealdsburgTown · 106 ft | 88°F | 39°F | 25% | 9 mph | 41 in. |
| CalistogaTown · 362 ft | 87°F | 38°F | 29% | 9 mph | 35 in. |
| FairfieldTown · 16 ft | 86°F | 40°F | 5% | 11 mph | 21 in. |
| Suisun CityTown · 10 ft | 86°F | 40°F | 5% | 11 mph | 21 in. |
| Glen EllenTown · 220 ft | 86°F | 39°F | 25% | 7 mph | 31 in. |
| Birds LandingTown · 13 ft | 86°F | 40°F | 3% | 13 mph | 16 in. |
| WindsorTown · 98 ft | 86°F | 39°F | 30% | 9 mph | 35 in. |
| Jack London State Historic ParkPark · 540 ft | 85°F | 39°F | 31% | 7 mph | 31 in. |
| SonomaTown · 75 ft | 84°F | 39°F | 21% | 10 mph | 31 in. |
| Sonoma Valley Regional ParkPark · 200 ft | 84°F | 39°F | 21% | 10 mph | 27 in. |
| AngwinTown · 1,760 ft | 84°F | 39°F | 14% | 10 mph | 40 in. |
| KenwoodTown · 285 ft | 84°F | 39°F | 29% | 9 mph | 34 in. |
| NapaTown · 26 ft | 84°F | 39°F | 25% | 9 mph | 26 in. |
| Alhambra ValleyTown · 200 ft | 84°F | 40°F | 12% | 9 mph | 21 in. |
| Austin Creek State Recreation AreaPark · 1,200 ft | 84°F | 41°F | 25% | 7 mph | 53 in. |
| Annadel State ParkPark · 800 ft | 83°F | 40°F | 31% | 9 mph | 37 in. |
| ForestvilleTown · 131 ft | 83°F | 40°F | 30% | 8 mph | 40 in. |
| GratonTown · 148 ft | 83°F | 39°F | 29% | 9 mph | 37 in. |
| Boggs Mountain Demonstration State ForestViewpoint · 3,500 ft | 83°F | 38°F | 5% | 6 mph | 49 in. |
| Santa RosaTown · 164 ft | 82°F | 38°F | 33% | 9 mph | 32 in. |
| Mount Burdell Open Space PreservePark · 1,558 ft | 82°F | 41°F | 17% | 9 mph | 29 in. |
| NovatoTown · 20 ft | 82°F | 41°F | 17% | 9 mph | 29 in. |
| Olompali State Historic ParkPark · 400 ft | 82°F | 41°F | 17% | 9 mph | 28 in. |
| Wooden ValleyTown · 295 ft | 81°F | 39°F | 2% | 9 mph | 34 in. |
| Armstrong Redwoods State Natural ReservePark · 200 ft | 81°F | 41°F | 22% | 7 mph | 51 in. |
| KentfieldTown · 75 ft | 81°F | 42°F | 17% | 7 mph | 35 in. |
| RossTown · 75 ft | 81°F | 42°F | 17% | 7 mph | 34 in. |
| San AnselmoTown · 75 ft | 81°F | 42°F | 16% | 8 mph | 34 in. |
| PetalumaTown · 13 ft | 80°F | 39°F | 33% | 10 mph | 30 in. |
| Rohnert ParkTown · 125 ft | 80°F | 39°F | 34% | 8 mph | 31 in. |
| SebastopolTown · 92 ft | 80°F | 39°F | 30% | 10 mph | 34 in. |
| Sugarloaf Ridge State ParkPark · 1,600 ft | 80°F | 40°F | 17% | 10 mph | 40 in. |
| San RafaelTown · 36 ft | 80°F | 44°F | 17% | 7 mph | 33 in. |
| LarkspurTown · 23 ft | 80°F | 44°F | 18% | 5 mph | 32 in. |
| Corte MaderaTown · 13 ft | 80°F | 44°F | 14% | 6 mph | 32 in. |
| FairfaxTown · 148 ft | 80°F | 42°F | 15% | 9 mph | 38 in. |
| CotatiTown · 115 ft | 80°F | 39°F | 31% | 10 mph | 32 in. |
| GuernevilleTown · 56 ft | 79°F | 40°F | 18% | 9 mph | 44 in. |
| VallejoTown · 13 ft | 78°F | 43°F | 18% | 9 mph | 22 in. |
| American CanyonTown · 33 ft | 78°F | 40°F | 20% | 11 mph | 23 in. |
| China Camp State ParkPark · 50 ft | 78°F | 44°F | 20% | 8 mph | 30 in. |
| Ring Mountain PreservePark · 602 ft | 77°F | 45°F | 19% | 9 mph | 29 in. |
| Cobb Mountain AreaViewpoint · 3,000 ft | 77°F | 37°F | 6% | 7 mph | 55 in. |
| Mill ValleyTown · 52 ft | 77°F | 44°F | 19% | 8 mph | 36 in. |
| Robert Louis Stevenson State ParkViewpoint · 2,200 ft | 76°F | 40°F | 6% | 8 mph | 46 in. |
| Muir Woods National MonumentPark · 262 ft | 76°F | 44°F | 24% | 9 mph | 36 in. |
| OccidentalTown · 443 ft | 75°F | 41°F | 36% | 9 mph | 47 in. |
| Samuel P. Taylor State ParkPark · 164 ft | 74°F | 42°F | 32% | 9 mph | 38 in. |
| Mount Tamalpais State ParkPark · 2,571 ft | 73°F | 43°F | 20% | 7 mph | 42 in. |
| Point Reyes StationTown · 20 ft | 73°F | 45°F | 19% | 11 mph | 36 in. |
| InvernessTown · 33 ft | 69°F | 46°F | 26% | 12 mph | 36 in. |
| Sea RanchTown · 100 ft | 69°F | 43°F | 15% | 8 mph | 39 in. |
| Stinson BeachBeach · 10 ft | 67°F | 45°F | 41% | 7 mph | 41 in. |
| Point Reyes National SeashorePark · 200 ft | 65°F | 46°F | 37% | 10 mph | 35 in. |
| Goat Rock State BeachBeach · 10 ft | 65°F | 44°F | 34% | 11 mph | 51 in. |
| JennerTown · 26 ft | 65°F | 44°F | 34% | 11 mph | 51 in. |
| Jenner HeadlandsViewpoint · 800 ft | 65°F | 44°F | 34% | 11 mph | 51 in. |
| Tomales Bay State ParkPark · 50 ft | 65°F | 45°F | 39% | 11 mph | 37 in. |
| BolinasTown · 20 ft | 65°F | 45°F | 43% | 9 mph | 37 in. |
| Limantour BeachBeach · 10 ft | 64°F | 47°F | 35% | 11 mph | 34 in. |
| Muir BeachBeach · 10 ft | 64°F | 45°F | 49% | 12 mph | 34 in. |
| Schoolhouse BeachBeach · 10 ft | 64°F | 45°F | 39% | 11 mph | 48 in. |
| SausalitoTown · 15 ft | 64°F | 45°F | 19% | 16 mph | 28 in. |
| Bodega BayTown · 26 ft | 64°F | 45°F | 36% | 12 mph | 44 in. |
| Marin HeadlandsViewpoint · 920 ft | 64°F | 45°F | 46% | 16 mph | 28 in. |
| Angel Island State ParkPark · 788 ft | 62°F | 45°F | 27% | 15 mph | 28 in. |
| TiburonTown · 16 ft | 62°F | 45°F | 27% | 15 mph | 28 in. |
| Drakes BeachBeach · 10 ft | 62°F | 47°F | 41% | 12 mph | 35 in. |
| Tennessee Valley BeachBeach · 10 ft | 62°F | 45°F | 52% | 12 mph | 31 in. |
| Shell BeachBeach · 10 ft | 60°F | 45°F | 41% | 12 mph | 44 in. |
| Salt Point State ParkPark · 100 ft | 56°F | 43°F | 41% | 10 mph | 43 in. |
| Wrights BeachBeach · 20 ft | 56°F | 44°F | 47% | 9 mph | 51 in. |
| Dillon BeachBeach · 10 ft | 56°F | 45°F | 43% | 12 mph | 39 in. |
| Salmon Creek BeachBeach · 10 ft | 55°F | 45°F | 51% | 11 mph | 48 in. |
| Point Reyes LighthousePark · 100 ft | 55°F | 47°F | 52% | 10 mph | 35 in. |
Summer afternoons, fog, and wind are June to August averages from NOAA’s HRRR model, hour by hour. Fog is the share of 6–10 AM hours with fog. Winter lows are December to February averages, and rain is the yearly total, from NOAA 1991–2020 climate normals.