Big Bend National Park weather in July
July in Big Bend National Park: hot, dry, with clean air — a good time to visit.
#11 of 12 months in Big Bend National Park · #451 of 604 destinations to visit in July · comfort 62/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Big Bend National Park climate normals — July
| Daytime high | 34°C / 93°F | 🥵 hot |
|---|---|---|
| Nighttime low | 22°C / 71°F | |
| Feels like (high) | 33°C / 91°F | |
| Rainfall | 9 mm / 0.3 in | ☀️ dry |
| Rainy days | 2 days | |
| Humidity | 32% | 🌵 dry |
| Dew point | 9°C / 48°F | |
| Sunshine | 12.6 h/day | |
| Daylight | 13.8 h | |
| Wind | 17 km/h / 10 mph | |
| Air quality (US AQI) | 44 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Big Bend National Park in July — FAQ
- Is July a good time to visit Big Bend National Park?
- July in Big Bend National Park: hot, dry, with clean air — a good time to visit. It ranks #11 of 12 months for Big Bend National Park on SeasonMap's comfort score (62/100).
- What is the weather like in Big Bend National Park in July?
- In July, Big Bend National Park averages a daily high of 33.8°C and a low of 21.9°C, with about 8.6 mm of rain over roughly 2.4 rainy days.
- What is the air quality in Big Bend National Park in July?
- Big Bend National Park has a mean US Air Quality Index of about 44 in July.