Forecast for Portola Valley
3 Day Weather Forecast for Portola Valley
The forecast shows air temperature, atmospheric pressure, humidity,
precipitation, wind and solar activity, air quality, astronomical data.
The historical archive contains weather data in recent years since 2010.
Weather summary
| May 19, 2024 Sunday | |
|---|---|
Sunny |
t° max 19.4 ℃ t° min 7.3 ℃ t° avg 12.5 ℃ |
| Precipitation total | 0 mm |
| Humidity avg | 71 % |
| Visible avg | 10 km |
| UV Index | Very high |
| US - EPA standard | |
| UK Defra Index | coming soon |
| Chance of rain | 0% |
| Chance of snow | 0% |
| Wind speed max | 14.8 kph |
| Sunrise | 05:56 AM |
| Sunset | 08:15 PM |
| Moonrise | 04:48 PM |
| Moonset | 03:49 AM |
| Moon phase | Waxing Gibbous |
| Moon illumination | 81 |
| Forecast for the day | |
Hourly weather forecast for Portola Valley for May 19, 2024
Temperature 8.8 ℃
Feels like 7.4 ℃
Presure 1016 mb
Humidity 91%
Precipitation 0 mm
Cloud cover 22 %
Wind chill 7.4 ℃
Wind speed 9 kph
Wind direction NSW
Wind direction 216°
Wind gust 14.2 kph
Heat index 8.8 ℃
Dew point 7.4 ℃
Vision 10 km
UV index Low
Temperature 8.3 ℃
Feels like 6.9 ℃
Presure 1016 mb
Humidity 93%
Precipitation 0 mm
Cloud cover 15 %
Wind chill 6.9 ℃
Wind speed 8.6 kph
Wind direction NSW
Wind direction 213°
Wind gust 15.1 kph
Heat index 8.3 ℃
Dew point 7.1 ℃
Vision 10 km
UV index Low
Temperature 8 ℃
Feels like 6.7 ℃
Presure 1016 mb
Humidity 93%
Precipitation 0 mm
Cloud cover 14 %
Wind chill 6.7 ℃
Wind speed 8.6 kph
Wind direction NSW
Wind direction 211°
Wind gust 15.6 kph
Heat index 8 ℃
Dew point 6.7 ℃
Vision 10 km
UV index Low
Temperature 12 ℃
Feels like 6.5 ℃
Presure 1017 mb
Humidity 82%
Precipitation 0 mm
Cloud cover 0 %
Wind chill 6.5 ℃
Wind speed 3.6 kph
Wind direction NSW
Wind direction 10°
Wind gust 13.6 kph
Heat index 7.8 ℃
Dew point 6.6 ℃
Vision 11 km
UV index Low
Temperature 7.6 ℃
Feels like 6.4 ℃
Presure 1016 mb
Humidity 93%
Precipitation 0 mm
Cloud cover 21 %
Wind chill 6.4 ℃
Wind speed 7.2 kph
Wind direction NSW
Wind direction 210°
Wind gust 13.1 kph
Heat index 7.6 ℃
Dew point 6.4 ℃
Vision 10 km
UV index Low
Temperature 7.5 ℃
Feels like 6.2 ℃
Presure 1016 mb
Humidity 93%
Precipitation 0 mm
Cloud cover 23 %
Wind chill 6.2 ℃
Wind speed 7.2 kph
Wind direction NSW
Wind direction 207°
Wind gust 13 kph
Heat index 7.5 ℃
Dew point 6.4 ℃
Vision 10 km
UV index Low
Temperature 8.1 ℃
Feels like 7.1 ℃
Presure 1016 mb
Humidity 93%
Precipitation 0 mm
Cloud cover 22 %
Wind chill 7.1 ℃
Wind speed 6.8 kph
Wind direction NSW
Wind direction 204°
Wind gust 12.4 kph
Heat index 8.1 ℃
Dew point 6.3 ℃
Vision 10 km
UV index Moderate
Temperature 9.7 ℃
Feels like 8.9 ℃
Presure 1017 mb
Humidity 89%
Precipitation 0 mm
Cloud cover 14 %
Wind chill 8.9 ℃
Wind speed 6.5 kph
Wind direction NSW
Wind direction 195°
Wind gust 9.6 kph
Heat index 9.7 ℃
Dew point 7.1 ℃
Vision 10 km
UV index Moderate
Temperature 11.9 ℃
Feels like 11.7 ℃
Presure 1016 mb
Humidity 76%
Precipitation 0 mm
Cloud cover 0 %
Wind chill 11.7 ℃
Wind speed 6.1 kph
Wind direction NSW
Wind direction 197°
Wind gust 7.2 kph
Heat index 11.9 ℃
Dew point 7.2 ℃
Vision 10 km
UV index Moderate
Temperature 14.3 ℃
Feels like 14.2 ℃
Presure 1016 mb
Humidity 63%
Precipitation 0 mm
Cloud cover 0 %
Wind chill 14.2 ℃
Wind speed 5 kph
Wind direction NSW
Wind direction 220°
Wind gust 5.8 kph
Heat index 14.3 ℃
Dew point 7.3 ℃
Vision 10 km
UV index Moderate
Temperature 16.4 ℃
Feels like 16.3 ℃
Presure 1016 mb
Humidity 53%
Precipitation 0 mm
Cloud cover 0 %
Wind chill 16.3 ℃
Wind speed 5 kph
Wind direction NSW
Wind direction 255°
Wind gust 5.8 kph
Heat index 16.4 ℃
Dew point 7.2 ℃
Vision 10 km
UV index Moderate
Temperature 17.8 ℃
Feels like 17.8 ℃
Presure 1016 mb
Humidity 47%
Precipitation 0 mm
Cloud cover 0 %
Wind chill 17.8 ℃
Wind speed 7.2 kph
Wind direction NSW
Wind direction 277°
Wind gust 8.3 kph
Heat index 17.8 ℃
Dew point 7.1 ℃
Vision 10 km
UV index Moderate
Temperature 18.6 ℃
Feels like 18.6 ℃
Presure 1016 mb
Humidity 45%
Precipitation 0 mm
Cloud cover 0 %
Wind chill 18.6 ℃
Wind speed 9.7 kph
Wind direction NSW
Wind direction 278°
Wind gust 11.2 kph
Heat index 18.6 ℃
Dew point 7 ℃
Vision 10 km
UV index Moderate
Temperature 18.9 ℃
Feels like 18.9 ℃
Presure 1016 mb
Humidity 44%
Precipitation 0 mm
Cloud cover 0 %
Wind chill 18.9 ℃
Wind speed 10.8 kph
Wind direction NSW
Wind direction 270°
Wind gust 12.4 kph
Heat index 18.9 ℃
Dew point 7 ℃
Vision 10 km
UV index Moderate
Temperature 18.6 ℃
Feels like 18.6 ℃
Presure 1016 mb
Humidity 44%
Precipitation 0 mm
Cloud cover 0 %
Wind chill 18.6 ℃
Wind speed 13.3 kph
Wind direction NSW
Wind direction 266°
Wind gust 15.3 kph
Heat index 18.6 ℃
Dew point 6.7 ℃
Vision 10 km
UV index Moderate
Temperature 18 ℃
Feels like 18 ℃
Presure 1016 mb
Humidity 45%
Precipitation 0 mm
Cloud cover 5 %
Wind chill 18 ℃
Wind speed 14.8 kph
Wind direction NSW
Wind direction 268°
Wind gust 17 kph
Heat index 18 ℃
Dew point 6.4 ℃
Vision 10 km
UV index Moderate
Temperature 17.1 ℃
Feels like 17.1 ℃
Presure 1015 mb
Humidity 48%
Precipitation 0 mm
Cloud cover 11 %
Wind chill 17.1 ℃
Wind speed 14.8 kph
Wind direction NSW
Wind direction 274°
Wind gust 17 kph
Heat index 17.1 ℃
Dew point 6.3 ℃
Vision 10 km
UV index Moderate
Temperature 16 ℃
Feels like 15.6 ℃
Presure 1015 mb
Humidity 50%
Precipitation 0 mm
Cloud cover 16 %
Wind chill 15.6 ℃
Wind speed 14.4 kph
Wind direction NSW
Wind direction 273°
Wind gust 16.6 kph
Heat index 16 ℃
Dew point 5.9 ℃
Vision 10 km
UV index Moderate
Temperature 14.7 ℃
Feels like 14 ℃
Presure 1015 mb
Humidity 54%
Precipitation 0 mm
Cloud cover 4 %
Wind chill 14 ℃
Wind speed 13.3 kph
Wind direction NSW
Wind direction 269°
Wind gust 15.3 kph
Heat index 14.6 ℃
Dew point 5.7 ℃
Vision 10 km
UV index Moderate
Temperature 12.7 ℃
Feels like 11.8 ℃
Presure 1015 mb
Humidity 61%
Precipitation 0 mm
Cloud cover 2 %
Wind chill 11.8 ℃
Wind speed 11.5 kph
Wind direction NSW
Wind direction 263°
Wind gust 14 kph
Heat index 12.7 ℃
Dew point 6 ℃
Vision 10 km
UV index Moderate
Temperature 10.9 ℃
Feels like 9.8 ℃
Presure 1015 mb
Humidity 76%
Precipitation 0 mm
Cloud cover 0 %
Wind chill 9.8 ℃
Wind speed 9.7 kph
Wind direction NSW
Wind direction 250°
Wind gust 14.3 kph
Heat index 10.9 ℃
Dew point 6.8 ℃
Vision 10 km
UV index Moderate
Temperature 9.8 ℃
Feels like 8.6 ℃
Presure 1016 mb
Humidity 87%
Precipitation 0 mm
Cloud cover 0 %
Wind chill 8.6 ℃
Wind speed 9 kph
Wind direction NSW
Wind direction 239°
Wind gust 15.3 kph
Heat index 9.8 ℃
Dew point 7.1 ℃
Vision 10 km
UV index Low
Temperature 9.2 ℃
Feels like 8 ℃
Presure 1016 mb
Humidity 90%
Precipitation 0 mm
Cloud cover 9 %
Wind chill 8 ℃
Wind speed 8.6 kph
Wind direction NSW
Wind direction 235°
Wind gust 14.9 kph
Heat index 9.2 ℃
Dew point 7.2 ℃
Vision 10 km
UV index Low
Temperature 9 ℃
Feels like 7.6 ℃
Presure 1015 mb
Humidity 91%
Precipitation 0 mm
Cloud cover 25 %
Wind chill 7.6 ℃
Wind speed 7.9 kph
Wind direction NSW
Wind direction 229°
Wind gust 13.2 kph
Heat index 9 ℃
Dew point 7.3 ℃
Vision 10 km
UV index Low