Gallup (NM)
September
Weather in Gallup, New Mexico for September 2026
Your guide to Gallup weather in September - trends and predictions
In general, the average temperature in Gallup at the beginning of September is 26.9 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 22.4 °F by the end of September.
Gallup experiences moderate rainfall in September, with an average of 9 rainy days and a total precipitation of 114 mm.
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Temperatures
Rain 🌧️
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21
Dry days
9
Rainy days
0
Snow days
25°/12°
Temperatures
25 km/h
Avg max wind
53 %
Avg humidity
Gallup Weather September
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Temperatures trend during September in Gallup
See the weather trend as well as the moving average line
September weather in Gallup day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Thundery outbreaks possible | 27° /18° | 0 mm | 10 | |
| Sept. 2 |  Overcast | 29° /13° | 0 mm | 12 | |
| Sept. 3 | Thundery outbreaks possible | 28° /14° | 0 mm | 12 | |
| Sept. 4 | Thundery outbreaks possible | 29° /11° | 0 mm | 11 | |
| Sept. 5 |  Light rain shower | 22° /15° | 12.5 mm | 2 | |
| Sept. 6 |  Moderate or heavy rain shower | 25° /13° | 17.3 mm | 9 | |
| Sept. 7 |  Partly cloudy | 28° /14° | 0 mm | 11 | |
| Sept. 8 |  Sunny | 28° /13° | 0 mm | 11 | |
| Sept. 9 | Sunny | 28° /12° | 0 mm | 11 | |
| Sept. 10 | Overcast | 27° /12° | 0 mm | 11 | |
| Sept. 11 | Light rain shower | 26° /13° | 3.7 mm | 10 | |
| Sept. 12 | Light rain shower | 20° /13° | 22.7 mm | 6 | |
| Sept. 13 | Thundery outbreaks possible | 22° /12° | 0 mm | 11 | |
| Sept. 14 | Sunny | 25° /8° | 0 mm | 10 | |
| Sept. 15 | Sunny | 26° /9° | 0 mm | 10 | |
| Sept. 16 |  Cloudy | 27° /14° | 0 mm | 10 | |
| Sept. 17 |  Mist | 27° /11° | 0 mm | 10 | |
| Sept. 18 | Overcast | 26° /10° | 0 mm | 9 | |
| Sept. 19 | Light rain shower | 25° /14° | 2.4 mm | 7 | |
| Sept. 20 | Cloudy | 24° /11° | 4.4 mm | 9 | |
| Sept. 21 | Cloudy | 26° /11° | 0 mm | 9 | |
| Sept. 22 | Moderate or heavy rain shower | 23° /13° | 15.6 mm | 6 | |
| Sept. 23 | Mist | 26° /10° | 0 mm | 9 | |
| Sept. 24 | Sunny | 25° /8° | 0 mm | 8 | |
| Sept. 25 | Partly cloudy | 27° /8° | 0 mm | 8 | |
| Sept. 26 | Light rain shower | 23° /11° | 28.9 mm | 7 | |
| Sept. 27 | Moderate or heavy rain shower | 21° /9° | 6.5 mm | 4 | |
| Sept. 28 | Thundery outbreaks possible | 18° /11° | 0 mm | 8 | |
| Sept. 29 | Fog | 21° /11° | 0 mm | 8 | |
| Sept. 30 | Partly cloudy | 22° /10° | 0 mm | 8 | |
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Important Notice
Our weather forecast for Gallup in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Gallup forecast closer to your planned date for the most up-to-date weather information.
Change Month
Gallup in September - FAQ
What are the expected maximum and minimum temperatures in Gallup during September?
Enjoy moderate daytime temperatures of up to 25° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Gallup during September?
Significant rainfall exceeding 114 mm is expected in Gallup during September, occurring over more than 9 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Gallup during September?
The average wind speed in Gallup during September is 25 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Gallup
Explore the daily rainfall trends and prepare for Gallups September weather 💧
Typically, Gallup has 9 rainy days in September with a total of 114 mm of rainfall.
UV exposure in Gallup during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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