Pro data
Explore temperature, wind, humidity, cloud and pressure for San Francisco. The charts show the hourly outlook and available models. Sources and update times belong in the comparison; an unavailable variable remains visibly unavailable.
Last updated
At a glance
Temperature, wind & pressure
What you feel outside: temperature, precipitation, wind, humidity and air pressure.
Temperature & precipitation
16.3 °C
Now · 15:00
- Temperature
- 16.3 °C today 12.6–17.1 °C ↗ 19.0 °C in 24 h
- Feels like
- 13.4 °C today 10.4–15.0 °C
- Precipitation
- 0.0 mm
- Rain probability
- 0 % today 0–1 %
Today
- Maximum today
- 17.1 °C
- Minimum today
- 12.2 °C
- Precipitation today
- 0.0 mm
- Probability today
- 1 %
Wind
19 km/h
Now · 15:00
Higher up
- Wind 80 m
- 24 km/h today 16–28 km/h
- Wind 120 m
- 20 km/h today 11–21 km/h
- Wind 180 m
- 26 km/h today 12–28 km/h
Today
- Maximum today
- 19 km/h
- Maximum gusts today
- 29 km/h
Humidity & dew point
63 %
Now · 15:00
- Relative humidity
- 63 % today 63–87 % ↘ 54 % in 24 h
- Dew point
- 9.3 °C today 8.0–11.4 °C → 9.5 °C in 24 h
- Wet-bulb temperature
- 12.0 °C today 10.4–13.3 °C
- Vapour pressure deficit
- 0.69 kPa today 0.19–0.72 kPa
Air pressure
1013.4 hPa
Clouds, sun & radiation
How much sun gets through: cloud layers, visibility, UV and solar radiation.
Clouds
100 %
Now · 15:00
- Total cloud cover
- 100 % today 39–100 % → 100 % in 24 h
- Low clouds
- 13 % today 0–100 %
- Mid-level clouds
- 100 % today 0–100 %
- High clouds
- 0 % today 0–100 %
Visibility
25.3 km
Now · 15:00
- Visibility
- 25.3 km today 14.8–25.8 km ↗ 33.0 km in 24 h
Sun & UV
7.5 h
Now · 15:00
- UV index now
- 4.3 today 0.0–5.1
Today
- Sunshine today
- 7.5 h
- Daylight
- 11.1 h
- UV index maximum
- 5.1
- Clear-sky UV index
- 5.1
- Sunrise
- 07:22
- Sunset
- 18:26
- Daylight
- 11 h 04 min
- Moon
- First quarter · 63 %
Radiation
552 W/m²
Now · 15:00
- Shortwave
- 552 W/m² today 0–613 W/m²
- Direct
- 250 W/m² today 0–485 W/m²
- Diffuse
- 302 W/m² today 0–316 W/m²
- DNI
- 417 W/m² today 0–733 W/m²
- GTI
- 552 W/m² today 0–613 W/m²
- Extraterrestrial
- 828 W/m² today 0–914 W/m²
Today
- Daily sum
- 12.8 MJ/m²
Air quality & pollen
What you breathe: the air quality index, the individual pollutants and the pollen count.
Air quality
29 · Fair
Indices
- European AQI
- 29
- US AQI
- 52
Pollutants
EU AQI per pollutant
- EU AQI PM2.5
- 29
- EU AQI PM10
- 21
- EU AQI NO₂
- 4
- EU AQI O₃
- 29
- EU AQI SO₂
- 1
Thunderstorms, snow & upper air
For weather watchers: thunderstorm energy, snow and freezing level, the mixed layer near the ground and the air aloft.
Thunderstorms
0 J/kg
Now · 15:00
- CAPE
- 0 J/kg today 0–20 J/kg → 0 J/kg in 24 h
- Lifted index
- 9.9 today 6.9–12.5
- CIN
- 0 J/kg today 0–4 J/kg
Snow & freezing level
0.0 cm
Now · 15:00
- Snowfall
- 0.0 cm
- Snow depth
- 0 cm
- Freezing level
- 3620 m today 3380–4140 m ↘ 3060 m in 24 h
Today
- Snow today
- 0.0 cm
Boundary layer & water vapour
655 m
Now · 15:00
- Boundary layer height
- 655 m today 325–780 m ↗ 800 m in 24 h
- Total column water vapour
- 9.4 kg/m² today 9.2–14.6 kg/m²
Upper air
11.1 °C
Pressure levels now
| Level | Temperature | Humidity | Cloud | Wind | Height |
|---|---|---|---|---|---|
| 1000 hPa | 14.0 °C | 68 % | 0 % | 22 km/h W | 112 m |
| 925 hPa | 9.0 °C | 64 % | 0 % | 20 km/h W | 765 m |
| 850 hPa | 11.1 °C | 3 % | 0 % | 27 km/h S | 1466 m |
| 700 hPa | 3.7 °C | 11 % | 0 % | 43 km/h S | 3068 m |
| 500 hPa | -14.0 °C | 17 % | 0 % | 58 km/h S | 5707 m |
| 300 hPa | -41.0 °C | 50 % | 0 % | 106 km/h SW | 9374 m |
Soil & evaporation
For garden and field: soil temperature, soil moisture and how much water evaporates.
Soil
19.2 °C
Soil temperature
- Temperature 0 cm
- 19.2 °C today 14.8–19.5 °C
- Temperature 6 cm
- 18.8 °C today 14.4–18.8 °C
- Temperature 18 cm
- 16.6 °C today 15.8–16.9 °C
- Temperature 54 cm
- 16.7 °C today 16.7–16.8 °C
Soil moisture
- Moisture 0–1 cm
- 0.191 m³/m³ today 0.189–0.203 m³/m³
- Moisture 1–3 cm
- 0.201 m³/m³ today 0.199–0.207 m³/m³
- Moisture 3–9 cm
- 0.216 m³/m³ today 0.213–0.217 m³/m³
- Moisture 9–27 cm
- 0.234 m³/m³ today 0.234–0.235 m³/m³
- Moisture 27–81 cm
- 0.271 m³/m³ today 0.270–0.271 m³/m³
Evaporation
0.29 mm
Now · 15:00
- ET₀ (FAO)
- 0.29 mm today 0.01–0.32 mm
- Evapotranspiration
- 0.00 mm
Today
- ET₀ today
- 2.4 mm
Forecast check
How reliable is the forecast? The weather models side by side, and what the nearest station actually measures.
Model comparison
Models agree
How reliable is the forecast?
The weather models largely agree up to Saturday. From Sunday they diverge: highs between 18° and 24°.
- Mon, Oct 19: Models agree, 17–17°
- Tue, Oct 20: Models agree, 18–20°
- Wed, Oct 21: Minor differences, 17–21° 1 of 7 models with rain
- Thu, Oct 22: Minor differences, 16–18° 4 of 7 models with rain
- Fri, Oct 23: Minor differences, 19–22°
- Sat, Oct 24: Minor differences, 19–24°
- Sun, Oct 25: Models disagree, 18–24°
Wed: 1 of 7 models expects rain.
Range of the daily highs across 7 weather models.
| Day | DWD ICON-D2 | DWD ICON-EU | DWD ICON | ECMWF | NOAA GFS | Canada GEM | Météo-France | UK Met Office | Japan JMA | Agreement |
|---|---|---|---|---|---|---|---|---|---|---|
| – – – | – – – | 17° 14° 0 mm | 17° 14° 0 mm | 17° 13° 0 mm | 17° 13° 0 mm | 17° 13° 0 mm | 17° 11° 0 mm | 17° 13° 0 mm | Models agree Range 0.5 °C | |
| – – – | – – – | 20° 13° 0 mm | 19° 12° 0.2 mm | 19° 11° 0 mm | 18° 12° 0.1 mm | 19° 13° 0 mm | 20° 12° 0 mm | 19° 11° 0 mm | Models agree Range 1.7 °C | |
| – – – | – – – | 20° 14° 0.2 mm | 20° 14° 0.7 mm | 18° 12° 0.7 mm | 21° 13° 0 mm | 20° 15° 1.8 mm | 17° 14° 0.8 mm | 20° 12° 0.1 mm | Minor differences Range 3.2 °C | |
| – – – | – – – | 17° 14° 1 mm | 18° 14° 0.3 mm | 16° 14° 4.1 mm | 17° 14° 0.08 mm | 18° 14° 4.2 mm | 18° 11° 0 mm | 18° 14° 2.9 mm | Minor differences Range 2.4 °C | |
| – – – | – – – | 21° 14° 0 mm | 21° 10° 0 mm | 19° 13° 0 mm | 19° 12° 0 mm | – – – | 22° 14° 0 mm | 20° 12° 0 mm | Minor differences Range 2.9 °C | |
| – – – | – – – | 20° 12° 0 mm | 21° 11° 0 mm | 24° 14° 0 mm | 19° 11° 0 mm | – – – | 21° 13° 0 mm | 21° 10° 0.3 mm | Minor differences Range 4.4 °C | |
| – – – | – – – | 21° 12° 0 mm | 24° 11° 0 mm | 24° 16° 0 mm | 18° 11° 0 mm | – – – | 19° 12° 0 mm | 20° 10° 0 mm | Models disagree Range 6.7 °C |
Next 24 hours per model
| Model | 16:00 | 19:00 | 22:00 | 01:00 | 04:00 | 07:00 | 10:00 | 13:00 |
|---|---|---|---|---|---|---|---|---|
| DWD ICON-D2 | – | – | – | – | – | – | – | – |
| DWD ICON-EU | – | – | – | – | – | – | – | – |
| DWD ICON | 17° | 15° | 15° | 15° | 14° | 13° | 15° | 18° |
| ECMWF | 17° | 15° | 14° | 14° | 12° · 0.1 mm | 12° | 15° | 17° |
| NOAA GFS | 16° | 14° | 13° | 12° | 11° | 11° | 15° | 19° |
| Canada GEM | 16° | 14° | 13° | 13° | 13° | 12° | 15° | 18° |
| Météo-France | 17° | 15° | 14° | 13° | 13° | 13° | 15° | 17° |
| UK Met Office | 17° | 16° | 15° | 14° | 13° | 12° | 15° | 17° |
| Japan JMA | 17° | 16° | 14° | 12° | 11° | 13° | 15° | 18° |