Discover the best time of year, based on historical climate, temperature, and precipitation.
The best weather in Portola Valley is from June, July, September. — consistent weather climate
☀️Pleasant
| Score | 51 | 63 | 58 | 88 | 93 | 99 | 100 | 93 | 98 | 95 | 78 | 42 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Climate | Cold | Cold | Cold | Mild | Mild | Pleasant | Pleasant | Pleasant | Pleasant | Pleasant | Mild | Cold |
| Temperature | 7–14°C | 6–16°C | 7–16°C | 8–19°C | 10–23°C | 12–26°C | 14–28°C | 15–29°C | 14–28°C | 13–25°C | 8–17°C | 7–14°C |
| Feels like | 4–13°C | 4–13°C | 4–14°C | 6–18°C | 8–22°C | 11–26°C | 13–29°C | 15–29°C | 14–27°C | 12–23°C | 7–15°C | 5–13°C |
| Precipitation | 99mm 10 days | 58mm 7 days | 97mm 14 days | 23mm 4 days | 18mm 4 days | 1mm 0 days | 0mm 0 days | 1mm 0 days | 8mm 1 days | 31mm 2 days | 42mm 5 days | 150mm 13 days |
| Sunshine | 6.9h ☀︎ 70% | 9.0h ☀︎ 83% | 9.4h ☀︎ 78% | 11.3h ☀︎ 86% | 12.9h ☀︎ 91% | 13.4h ☀︎ 91% | 13.4h ☀︎ 93% | 12.6h ☀︎ 93% | 11.5h ☀︎ 92% | 9.9h ☀︎ 88% | 8.5h ☀︎ 83% | 6.4h ☀︎ 66% |
| Wind | W · 13 km/h | W · 15 km/h | W · 16 km/h | W · 17 km/h | W · 17 km/h | W · 16 km/h | W · 13 km/h | W · 14 km/h | W · 13 km/h | NW · 13 km/h | W · 12 km/h | W · 11 km/h |
| Humidity (%) | 80% | 70% | 75% | 71% | 66% | 62% | 61% | 63% | 64% | 60% | 69% | 81% |
| Day length | 9.9h | 10.8h | 12.0h | 13.2h | 14.2h | 14.7h | 14.4h | 13.6h | 12.4h | 11.2h | 10.2h | 9.6h |
California Republic · United States of America
California Republic · United States of America
California Republic · United States of America