South Union, WA
Unincorporated community in Thurston County, Washington
South Union is a small unincorporated community in Thurston County, Washington. It is 3.2 miles N of Tumwater, the nearest town. Its ZIP code is 98501.
South Union at a glance
- State
- Washington
- County
- Thurston County
- ZIP code
- 98501
- Nearest town
- Tumwater (3.2 mi)
- Time zone
- America/Los Angeles
- Coordinates
- 46.9433, -122.9061
Weather in South Union now
Loading the National Weather Service forecast…
South Union weather by the hour
South Union weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of South Union.
This week in South Union
Sunrise, sunset and moon in South Union
What is the weather usually like in South Union?
Köppen climate classification, calculated from the 1991–2020 normals
- Augustwarmest month · 78°F average high
- Februarycoldest month · 32°F average low
- 50.6 inprecipitation per year · 1,286 mm
- 3.9 insnowfall per year · 10 cm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit South Union: June to September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station OLYMPIA AP, WA US (USW00024227), adjusted for the elevation of South Union.
South Union weather month by month
Sunrise and sunset in South Union through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:50 AM | 4:51 PM | 9 h 1 min |
| February | 7:13 AM | 5:37 PM | 10 h 24 min |
| March | 7:22 AM | 7:18 PM | 11 h 56 min |
| April | 6:21 AM | 8:01 PM | 13 h 40 min |
| May | 5:34 AM | 8:41 PM | 15 h 7 min |
| June | 5:14 AM | 9:10 PM | 15 h 55 min |
| July | 5:30 AM | 9:04 PM | 15 h 33 min |
| August | 6:08 AM | 8:24 PM | 14 h 16 min |
| September | 6:48 AM | 7:25 PM | 12 h 36 min |
| October | 7:28 AM | 6:25 PM | 10 h 57 min |
| November | 7:13 AM | 4:38 PM | 9 h 25 min |
| December | 7:48 AM | 4:25 PM | 8 h 36 min |
Times for the 15th of each month, local time (America/Los Angeles).
What is the weather like in South Union?
South Union has a warm-summer mediterranean climate. The warmest month is August, with an average high of 78°F (26°C), and the coldest is February, with average lows of 32°F (0°C).
It gets about 50.6 inches (1,286 mm) of precipitation a year. The wettest month is November and the driest is July. Snow is common: about 4 inches fall in an average year.
The best time to visit South Union is June to September. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.
Webcams near South Union
The closest live webcam is Olympia › East: Regional Airport Weather Station, 1.9 miles N of South Union.
Webcams: Windy.com. Distances in a straight line from South Union.
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Map of South Union, WA
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South Union Street View
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Questions about South Union
Where is South Union, WA?
South Union is an unincorporated community in Thurston County, Washington, 3.2 miles N of Tumwater.
What county is South Union in?
South Union is in Thurston County, Washington.
What is the ZIP code of South Union, WA?
The ZIP code for South Union is 98501.
What is the nearest town to South Union?
Tumwater, 3.2 miles away.
Are there webcams near South Union?
Yes. The closest is Olympia › East: Regional Airport Weather Station, 1.9 miles away.
What is the hottest month in South Union?
August, with an average high of 78°F (26°C).
What is the coldest month in South Union?
February, with an average low of 32°F (0°C).
How much does it rain in South Union?
About 50.6 inches (1,286 mm) a year; the wettest month is November.
Does it snow in South Union?
Yes, about 4 inches of snow fall in an average year.
When is the best time to visit South Union?
June to September, when temperatures are most pleasant and rainy days are fewer.
What climate does South Union have?
Warm-summer mediterranean (Köppen Csb).
Last updated: