Fairfield, California Climate
United States
Pop. 112,970 Elev. 4 m / 13 ft
TZ: America/Los_Angeles (UTC-7) ·
Fairfield is largely arid, with warm summers peaking at 88°F (31°C) in August and cool winters around 41°F (5°C) in January. Humidity pushes the summer feels-like temperature to around 94°F (34°C). Precipitation occurs on roughly 25 days per year (18.1 in / 461 mm total). The city averages 206 sunny days per year. Ocean water temperatures reach 62°F (17°C) in summer.
| Temperature | 88°F (31°C) high | 41°F (5°C) low |
| Feels like | 94°F (34°C) high | 41°F (5°C) low |
| Rain | 25 days | 18.1 in (461 mm) /yr |
| Sky | 206 sunny | 15 stormy |
| Wind | 4.5 mph (2.0 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Jan, Apr, May, Jun, Jul, Sep, Oct
Sky & Air by Month
Cloud cover (%)
36
Jan 62
Feb 57
Mar 45
Apr 22
May 14
Jun 23
Jul 15
Aug 34
Sep 41
Oct 68
Nov 67
Dec Humidity (%)
59
Jan 71
Feb 69
Mar 64
Apr 50
May 56
Jun 64
Jul 56
Aug 62
Sep 66
Oct 81
Nov 84
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 18 mi Buchanan Field (CCR)
Ski resort 117 mi Sugar Bowl Resort
National park 29 mi Rosie the Riveter/World War II Home Front National Historical Park
Mountain peak
(6,113 ft) 79 mi Goat Mountain
Hospital 1 mi NorthBay Medical Center
Hiking trail 15 mi Bay Area Ridge Trail
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 62°F 17°C | 41°F 5°C | 0.5 in 12 mm | — | 18 |
| February | 63°F 17°C | 44°F 7°C | 6.6 in 168 mm | — | 6 |
| March | 66°F 19°C | 46°F 8°C | 2.5 in 64 mm | — | 11 |
| April | 74°F 23°C | 49°F 9°C | 0.3 in 7 mm | — | 14 |
| May | 82°F 28°C | 54°F 12°C | 0.1 in 2 mm | — | 25 |
| June | 83°F 28°C | 55°F 13°C | 0.0 in 0 mm | — | 30 |
| July | 82°F 28°C | 57°F 14°C | 0.0 in 1 mm | — | 27 |
| August | 88°F 31°C | 59°F 15°C | 0.0 in 0 mm | — | 30 |
| September | 85°F 30°C | 61°F 16°C | 0.1 in 3 mm | — | 20 |
| October | 75°F 24°C | 54°F 12°C | 1.9 in 48 mm | — | 17 |
| November | 66°F 19°C | 50°F 10°C | 3.2 in 82 mm | — | 4 |
| December | 56°F 13°C | 45°F 7°C | 3.0 in 75 mm | — | 4 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 18 | 0 |
| February | 6 | 4 |
| March | 11 | 3 |
| April | 14 | 0 |
| May | 25 | 0 |
| June | 30 | 0 |
| July | 27 | 0 |
| August | 30 | 0 |
| September | 20 | 0 |
| October | 17 | 1 |
| November | 4 | 4 |
| December | 4 | 3 |
Water Temperatures Data
↑ See chart| Month | Ocean Avg High | Lake Avg High |
|---|---|---|
| January | 53°F 12°C | 49°F 10°C |
| February | 54°F 12°C | 49°F 10°C |
| March | 55°F 13°C | 52°F 11°C |
| April | 56°F 13°C | 58°F 15°C |
| May | 55°F 13°C | 64°F 18°C |
| June | 57°F 14°C | 67°F 19°C |
| July | 60°F 16°C | 67°F 20°C |
| August | 61°F 16°C | 71°F 22°C |
| September | 62°F 17°C | 72°F 22°C |
| October | 62°F 17°C | 65°F 18°C |
| November | 58°F 14°C | 59°F 15°C |
| December | 56°F 14°C | 53°F 11°C |