Saguaro National Park weather in December
December in Saguaro National Park: cool, a little rain, with clean air — an excellent time to visit.
#7 of 12 months in Saguaro National Park · #152 of 604 destinations to visit in December · comfort 81/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Saguaro National Park climate normals — December
| Daytime high | 15°C / 59°F | 🙂 cool |
|---|---|---|
| Nighttime low | 2°C / 36°F | |
| Feels like (high) | 11°C / 52°F | |
| Rainfall | 36 mm / 1.4 in | 🌦 some rain |
| Rainy days | 5 days | |
| Humidity | 53% | 🍃 comfortable |
| Dew point | -3°C / 27°F | |
| Sunshine | 8.4 h/day | |
| Daylight | 10.1 h | |
| Wind | 11 km/h / 7 mph | |
| Snowfall | 1.1 cm / 0.4 in | |
| Air quality (US AQI) | 31 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Saguaro National Park?
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Saguaro National Park in December — FAQ
- Is December a good time to visit Saguaro National Park?
- December in Saguaro National Park: cool, a little rain, with clean air — an excellent time to visit. It ranks #7 of 12 months for Saguaro National Park on SeasonMap's comfort score (81/100).
- What is the weather like in Saguaro National Park in December?
- In December, Saguaro National Park averages a daily high of 14.9°C and a low of 2.3°C, with about 36.1 mm of rain over roughly 4.6 rainy days.
- What is the air quality in Saguaro National Park in December?
- Saguaro National Park has a mean US Air Quality Index of about 31 in December.
- Does it snow in Saguaro National Park in December?
- Saguaro National Park sees roughly 1.1 cm of snowfall in December.