Discover the best time of year, based on historical climate, temperature, and precipitation.
The best weather in Foster City is from June, July, August. — consistent weather climate
🌥Mild
| Score | 51 | 60 | 53 | 80 | 93 | 98 | 99 | 99 | 98 | 95 | 74 | 39 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Climate | Cold | Cold | Cold | Mild | Mild | Mild | Pleasant | Pleasant | Pleasant | Pleasant | Mild | Cold |
| Temperature | 8–14°C | 8–15°C | 8–15°C | 9–17°C | 11–20°C | 13–22°C | 14–22°C | 15–23°C | 15–24°C | 14–22°C | 10–16°C | 8–13°C |
| Feels like | 5–12°C | 5–13°C | 6–13°C | 7–15°C | 9–19°C | 11–21°C | 13–22°C | 14–23°C | 14–23°C | 13–21°C | 9–15°C | 6–12°C |
| Precipitation | 93mm 9 days | 60mm 6 days | 94mm 11 days | 21mm 3 days | 19mm 3 days | 1mm 0 days | 0mm 0 days | 1mm 0 days | 6mm 1 days | 31mm 2 days | 43mm 5 days | 148mm 12 days |
| Sunshine | 7.0h ☀︎ 71% | 9.1h ☀︎ 84% | 9.5h ☀︎ 79% | 11.4h ☀︎ 87% | 12.7h ☀︎ 90% | 13.2h ☀︎ 90% | 13.0h ☀︎ 90% | 12.4h ☀︎ 91% | 11.4h ☀︎ 92% | 9.8h ☀︎ 87% | 8.5h ☀︎ 84% | 6.3h ☀︎ 65% |
| Wind | SW · 17 km/h | W · 21 km/h | W · 22 km/h | W · 25 km/h | W · 26 km/h | W · 26 km/h | W · 23 km/h | W · 23 km/h | W · 22 km/h | W · 20 km/h | W · 17 km/h | SW · 16 km/h |
| Humidity (%) | 83% | 77% | 78% | 77% | 73% | 72% | 74% | 76% | 76% | 72% | 77% | 84% |
| Day length | 9.9h | 10.8h | 12.0h | 13.2h | 14.2h | 14.7h | 14.5h | 13.6h | 12.4h | 11.2h | 10.2h | 9.6h |