Great Sand Dunes National Park weather in October
October in Great Sand Dunes National Park: cool, dry, with clean air — an excellent time to visit.
#4 of 12 months in Great Sand Dunes National Park · #67 of 604 destinations to visit in October · comfort 89/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Great Sand Dunes National Park climate normals — October
| Daytime high | 17°C / 62°F | 🙂 cool |
|---|---|---|
| Nighttime low | 3°C / 37°F | |
| Feels like (high) | 12°C / 54°F | |
| Rainfall | 14 mm / 0.6 in | ☀️ dry |
| Rainy days | 3 days | |
| Humidity | 48% | 🍃 comfortable |
| Dew point | -3°C / 27°F | |
| Sunshine | 10.1 h/day | |
| Daylight | 11.2 h | |
| Wind | 15 km/h / 9 mph | |
| Snowfall | 5.9 cm / 2.3 in | |
| Air quality (US AQI) | 35 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Great Sand Dunes National Park?
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Great Sand Dunes National Park in October — FAQ
- Is October a good time to visit Great Sand Dunes National Park?
- October in Great Sand Dunes National Park: cool, dry, with clean air — an excellent time to visit. It ranks #4 of 12 months for Great Sand Dunes National Park on SeasonMap's comfort score (89/100).
- What is the weather like in Great Sand Dunes National Park in October?
- In October, Great Sand Dunes National Park averages a daily high of 16.5°C and a low of 2.7°C, with about 14 mm of rain over roughly 2.8 rainy days.
- What is the air quality in Great Sand Dunes National Park in October?
- Great Sand Dunes National Park has a mean US Air Quality Index of about 35 in October.
- Does it snow in Great Sand Dunes National Park in October?
- Great Sand Dunes National Park sees roughly 5.9 cm of snowfall in October.