Yosemite National Park in September
Yosemite National Park · crowd + weather almanac
September crowd level
busiest stretch
about 531,000 visits in a
typical September
The 3rd-busiest month of the year ·
median of 2016–2025 official NPS counts
September is the 3rd-busiest month of the year at Yosemite National Park: about 531,000 recreation visits in a typical September (13% of the year's traffic, and 92% of what the peak month, July, sees). This is high season — the park is at or near its busiest. Weather-wise, September days at the Yosemite Park Hq, CA station typically top out around 83°F with nights near 51°F, and about 0.4 inches of precipitation falls over the month.
- Typical September: 530,850 recreation visits (median 2016–2025); the range across those years ran 258,561 (2020) to 598,428 (2016).
- Busier than 9 of the other 11 months.
- 1991–2020 September normals at Yosemite Park Hq, CA: high 83°F, low 51°F, 0.40 in precipitation.
September weather (1991–2020 normals)
| Typical daytime high | 83°F |
|---|---|
| Typical overnight low | 51°F |
| Precipitation (monthly normal) | 0.40 in |
| Measured at | Yosemite Park Hq, CA (USC00049855), 0.1 mi from the park reference point, elev. 4,018 ft |
Every month at Yosemite
| Month | Typical visits | Crowds | High / Low | Precip |
|---|---|---|---|---|
| January | 128,610 | quiet | 48°F / 28°F | 7.0 in |
| February | 124,624 | quiet | 51°F / 30°F | 6.5 in |
| March | 163,349 | quiet | 57°F / 34°F | 5.5 in |
| April | 281,975 | moderate | 63°F / 38°F | 3.2 in |
| May | 389,337 | busy | 70°F / 44°F | 1.9 in |
| June | 520,157 | busiest stretch | 80°F / 51°F | 0.5 in |
| July | 577,313 | busiest stretch | 89°F / 57°F | 0.3 in |
| August | 570,297 | busiest stretch | 89°F / 57°F | 0.2 in |
| September | 530,850 | busiest stretch | 83°F / 51°F | 0.4 in |
| October | 437,803 | busy | 71°F / 41°F | 1.6 in |
| November | 218,462 | moderate | 56°F / 32°F | 4.0 in |
| December | 150,140 | quiet | 46°F / 28°F | 5.6 in |