White Sands National Park weather in September
September in White Sands National Park: hot, dry — a great time to visit.
#9 of 12 months in White Sands National Park · #369 of 604 destinations to visit in September · comfort 76/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
White Sands National Park climate normals — September
| Daytime high | 30°C / 87°F | 🥵 hot |
|---|---|---|
| Nighttime low | 18°C / 64°F | |
| Feels like (high) | 29°C / 84°F | |
| Rainfall | 20 mm / 0.8 in | ☀️ dry |
| Rainy days | 4 days | |
| Humidity | 42% | 🍃 comfortable |
| Dew point | 9°C / 47°F | |
| Sunshine | 11.2 h/day | |
| Daylight | 12.4 h | |
| Wind | 16 km/h / 10 mph | |
| Air quality (US AQI) | 97 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is White Sands National Park?
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White Sands National Park in September — FAQ
- Is September a good time to visit White Sands National Park?
- September in White Sands National Park: hot, dry — a great time to visit. It ranks #9 of 12 months for White Sands National Park on SeasonMap's comfort score (76/100).
- What is the weather like in White Sands National Park in September?
- In September, White Sands National Park averages a daily high of 30.4°C and a low of 17.8°C, with about 20.2 mm of rain over roughly 3.8 rainy days.
- What is the air quality in White Sands National Park in September?
- White Sands National Park has a mean US Air Quality Index of about 97 in September.