The temperatures in Union City in September are comfortable with low of 15°C and and high up to 28°C.
You can expect up to 3 rainy days in Union City during the month of September.
Our weather forecast can give you a great sense of what weather to expect in Union City in September 2025.
If you’re planning to visit Union City in the near future, we highly recommend that you review the 14 day weather forecast for Union City before you arrive.
Temperatures
28° / 15°
Rainy Days
0
Snowy Days
0
Dry Days
30
Rainfall
3
mm
Sun Hours
11.9
Hrs
