The weather in Black River in September is hot. The average temperatures are between 20°C and 24°C.
You can expect a few rainy days in Black River during September, but usually the weather is comfortable in September.
Our weather forecast can give you a great sense of what weather to expect in Black River in September 2025.
If you’re planning to visit Black River in the near future, we highly recommend that you review the 14 day weather forecast for Black River before you arrive.
Temperatures
24° / 20°
Rainy Days
1
Snowy Days
0
Dry Days
29
Rainfall
28
mm
Sun Hours
11.2
Hrs
