The temperatures in Gallup in September are comfortable with low of 12°C and and high up to 25°C.
You can expect about 3 to 8 days of rain in Gallup 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 Gallup in September 2025.
If you’re planning to visit Gallup in the near future, we highly recommend that you review the 14 day weather forecast for Gallup before you arrive.
Temperatures
25° / 12°
Rainy Days
3
Snowy Days
0
Dry Days
27
Rainfall
51
mm
Sun Hours
10.5
Hrs
