Foster City, California Climate
United States
Pop. 33,477 Elev. 3 m / 10 ft
TZ: America/Los_Angeles (UTC-7) ·
Foster City has a dry climate with warm summers reaching 75°F (24°C) in September and cool winters averaging 44°F (7°C) in January. Rain falls on about 27 days per year (16.7 in / 424 mm total). The city averages 126 sunny days per year. Ocean water temperatures reach 62°F (17°C) in summer.
| Temperature | 75°F (24°C) high | 44°F (7°C) low |
| Feels like | 44°F (7°C) low | |
| Rain | 27 days | 16.7 in (424 mm) /yr |
| Sky | 126 sunny | 15 stormy |
| Wind | 3.2 mph (1.4 m/s) avg |
Looking for a place with a climate like Foster City? Explore and filter 150,000+ cities worldwide.
Explore on the MapMonthly Climate Chart
Best months to visit: Jan, Apr, May, Jun, Jul, Aug, Sep, Oct
Sky & Air by Month
Cloud cover (%)
41
Jan 66
Feb 62
Mar 59
Apr 42
May 41
Jun 54
Jul 41
Aug 54
Sep 43
Oct 62
Nov 57
Dec Humidity (%)
70
Jan 79
Feb 76
Mar 78
Apr 74
May 75
Jun 77
Jul 76
Aug 77
Sep 78
Oct 84
Nov 87
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 3 mi San Carlos Airport (SQL)
Ski resort 133 mi Leland Snowplay
National park 12 mi Sky Ridge
Mountain peak
(4,977 ft) 95 mi South Ventana Cone
Hospital 2 mi San Mateo Medical Center
Hiking trail 3 mi Bay Area Ridge Trail - 04 - San Francisco and Peninsula
Interested in Foster City?
Hotels
Flights
Real Estate
Insurance
Connectivity
Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 61°F 16°C | 44°F 7°C | 0.4 in 11 mm | — | 16 |
| February | 60°F 16°C | 47°F 9°C | 4.3 in 110 mm | — | 5 |
| March | 62°F 16°C | 48°F 9°C | 3.5 in 90 mm | — | 7 |
| April | 63°F 17°C | 50°F 10°C | 0.7 in 19 mm | — | 8 |
| May | 68°F 20°C | 52°F 11°C | 0.2 in 4 mm | — | 12 |
| June | 68°F 20°C | 53°F 12°C | 0.0 in 0 mm | — | 15 |
| July | 69°F 21°C | 56°F 13°C | 0.0 in 1 mm | — | 11 |
| August | 73°F 23°C | 57°F 14°C | 0.1 in 2 mm | — | 17 |
| September | 75°F 24°C | 61°F 16°C | 0.2 in 5 mm | — | 7 |
| October | 70°F 21°C | 56°F 13°C | 1.4 in 37 mm | — | 14 |
| November | 64°F 18°C | 52°F 11°C | 3.2 in 82 mm | — | 5 |
| December | 57°F 14°C | 48°F 9°C | 2.5 in 64 mm | — | 9 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 16 | 0 |
| February | 5 | 4 |
| March | 7 | 3 |
| April | 8 | 1 |
| May | 12 | 0 |
| June | 15 | 0 |
| July | 11 | 0 |
| August | 17 | 0 |
| September | 7 | 0 |
| October | 14 | 1 |
| November | 5 | 2 |
| December | 9 | 4 |
Water Temperatures Data
↑ See chart| Month | Ocean Avg High | Lake Avg High |
|---|---|---|
| January | 53°F 12°C | 51°F 11°C |
| February | 54°F 12°C | 51°F 11°C |
| March | 55°F 13°C | 54°F 12°C |
| April | 56°F 13°C | 58°F 14°C |
| May | 55°F 13°C | 61°F 16°C |
| June | 57°F 14°C | 64°F 18°C |
| July | 60°F 16°C | 65°F 19°C |
| August | 61°F 16°C | 67°F 20°C |
| September | 62°F 17°C | 69°F 20°C |
| October | 62°F 17°C | 64°F 18°C |
| November | 58°F 14°C | 60°F 15°C |
| December | 56°F 14°C | 54°F 12°C |