Weather in September 2025

Union weather in September 2025

The temperatures in Union in September are comfortable with low of 16°C and and high up to 25°C.

You can expect about 3 to 8 days of rain in Union during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.

Our weather forecast can give you a great sense of what weather to expect in Union in September 2025.

If you’re planning to visit Union in the near future, we highly recommend that you review the 14 day weather forecast for Union before you arrive.

Temperatures
Temperatures
25° / 16°
Rainy Days
Rainy Days
7
Snowy Days
Snowy Days
0
Dry Days
Dry Days
23
Rainfall
Rainfall
107
mm
6.8
Sun Hours
6.8
Hrs

Union annual weather

Month Temperatures Rainy Days Dry Days Snowy Days Rainfall Weather More details
January 3° / -4° 7 21 3 88 mm
Awful
February 5° / -3° 7 17 4 95 mm
Awful
March 9° / 1° 8 21 2 119 mm
Awful
April 16° / 6° 7 23 0 114 mm
Ok
May 21° / 12° 9 22 0 113 mm
Ok
June 26° / 17° 9 21 0 125 mm
Good
July 30° / 21° 11 21 0 132 mm
Ok
August 29° / 20° 9 22 0 128 mm
Ok
September 25° / 16° 7 23 0 107 mm
Good
October 18° / 11° 7 24 0 136 mm
Ok
November 12° / 4° 6 24 0 87 mm
Ok
December 6° / 0° 8 22 2 129 mm
Awful
Temperatures in Union in September
Rain in Union in September

Weather in Union in September - FAQ

What is the average temperature in Union in September?
The average temperature in Union in September is 16/25° C.
What is the chance of rain in Union in September?
On average, there are 7 rainy days in Union during September.
Weather wise, is September a good time to visit Union?
The weather in Union in September is good.
Can it snow in Union in September?
On average, there are 0 snowy days in Union in September.
Cities in Union

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More about the weather in Union