Location & Surroundings
Union is a settlement in California, United States, at 24 m elevation. The nearest larger town is Napa, 3 km to the southeast. The national capital Washington is about 3895 km to the east. The nearest airport is Napa County Airport, 12 km away.
Basic Data
- Type section of populated place (PPLX)
Geography
-
Coordinates
38° 19' 17" N, 122° 18' 36" W
- Elevation 24 m (DEM: 22 m)
- Timezone America/Los_Angeles
- Time Shift GMT -8 (DST -7)
Statistics & Country
- Pop. Density 2,643 p/km²
- Built-up 28.8%
- Settlement Urban centre
- Currency Dollar (USD)
- Phone Prefix +1
Sun & Local Time
- Local time 00:01
- Sunrise 07:13
- Sunset 18:38
- Day length 11 h 25 min
Nearby
Weather in Union
Current conditions and a 3-day (72-hour) weather forecast for Union, updated from the NOAA GFS model.
Now 19.7 C with mostly clear skies and a 3.7 m/s south-westerly wind. Next 24h: 8.7 to 19.7 C, max wind 3.7 m/s. No precipitation expected. Solar peaks near 618 W/m2.
Temperature
19.7 C
Wind
3.7 m/s SW (208 deg)
Humidity
42 %
Pressure
1,000.8 hPa
Clouds
0 %
Precip
0.00 mm
Solar
0.0 W/m2
UV-B
n/a
| Hour | Temp (C) | Wind (m/s) | Dir (deg) | RH (%) | Pressure (hPa) | Precip (step/total mm) | Clouds (%) | Solar (W/m2) | UV-B (W/m2) |
|---|---|---|---|---|---|---|---|---|---|
| NOW | 19.7 | 3.7 | 208 | 42 | 1,000.8 | - / 0.00 | 0 | 0.0 | n/a |
| 6h | 10.1 | 0.8 | 239 | 85 | 1,001.2 | 0.00 / 0.00 | 0 | 31.9 | n/a |
| 12h | 8.7 | 1.4 | 340 | 83 | 1,000.0 | 0.00 / 0.00 | 0 | 0.0 | n/a |
| 18h | 19.3 | 0.9 | 264 | 29 | 1,000.6 | 0.00 / 0.00 | 0 | 197.4 | n/a |
| Tomorrow | 19.1 | 3.5 | 205 | 38 | 1,000.4 | 0.00 / 0.00 | 0 | 617.7 | n/a |
| 30h | 10.2 | 0.7 | 279 | 77 | 1,005.9 | 0.00 / 0.00 | 5 | 30.1 | n/a |
| 36h | 9.2 | 1.2 | 337 | 75 | 1,010.4 | 0.00 / 0.00 | 16 | 0.0 | n/a |
| 42h | 17.6 | 1.4 | 54 | 28 | 1,013.7 | 0.00 / 0.00 | 0 | 192.6 | n/a |
| Tuesday | 19.9 | 3.2 | 228 | 29 | 1,011.9 | 0.00 / 0.00 | 0 | 612.5 | n/a |
| 54h | 10.4 | 1.7 | 300 | 75 | 1,015.3 | 0.00 / 0.00 | 97 | 29.3 | n/a |
| 60h | 9.1 | 1.0 | 355 | 70 | 1,016.6 | 0.00 / 0.00 | 4 | 0.0 | n/a |
| 66h | 20.5 | 0.2 | 327 | 26 | 1,018.2 | 0.00 / 0.00 | 0 | 190.1 | n/a |
| Wednesday | 22.6 | 2.5 | 229 | 23 | 1,016.0 | 0.00 / 0.00 | 20 | 590.4 | n/a |
Source: NOAA GFS 0.25° (run 2026-10-11 00:00 UTC).
FAQ
What is the current weather and next 24-hour outlook in Union?
Now 19.7 C with mostly clear skies and a 3.7 m/s south-westerly wind. Next 24h: 8.7 to 19.7 C, max wind 3.7 m/s. No precipitation expected. Solar peaks near 618 W/m2.
Is precipitation expected in the next 24 hours?
No measurable precipitation is expected in the next 24 hours.
When are sunrise and sunset in Union today?
Sunrise around 07:13 and sunset around 18:38 (local time). Day length about 11h 25m.
What is the local time in Union?
Local time is 00:01. Time zone: America/Los_Angeles (UTC-07:00).
What type of place is Union?
Union is a section of populated place.
What is the elevation of Union?
Elevation about 24 m. DEM 22 m.
Where is Union located?
It is at 38.32130, -122.30997 (latitude, longitude).
Which country is Union in?
It is in United States.