Early autumn · Weather & things to do
Truckee in September
Truckee cools off: highs slip to 74°F (24°C), from 83°F in August, with lows of 46°F (8°C) and about 0.3 in (8 mm) of rain.
At 100/100 for comfort (2nd of 12), it's one of the best months to visit.
- Avg high
- 74°F (24°C)
- Avg low
- 46°F (8°C)
- Rain
- 0.3 in (8 mm)
- Humidity
- 34%
- Cloud cover
- 21%
- Daylight
- ~12 h 15 min
- Comfort score
- 100/100 · Great
What September feels like
Highs settle around 74°F (24°C), warm enough for short sleeves most of the day.
Mornings start much cooler: lows average 46°F (8°C), about 16°C (28°F) below the afternoon high.
The air is dry, at about 34% humidity, which keeps warmth comfortable but dries skin and lips.
Rain is scarce: about 0.3 in (8 mm) for the whole month.
Clear skies are common, with cloud cover averaging only 21%.
Plan around September
September is one of Truckee's best months on the climate data.
- Last warm month for a while: October highs fall to 60°F.
- Comfort improves from 95/100 in August to 100/100.
- Our South Lake Tahoe, Tahoe City & Truckee route recommends Dec – Mar, so September falls outside its suggested window.
What to pack for September
- Light, breathable clothes74°F afternoons
- Sunscreen, sunglasses and a hathigh UV on clear days
- A warm layer for eveningslows near 46°F
- Lip balm and moisturizerdry air
- Comfortable walking shoesmost picks involve some walking
What to do in Truckee in September
With conditions on your side, the picks below favor time outside.
Royal Gorge Cross Country
Large cross-country ski area on Donner Summit, with groomed classic and skate trails and snowshoe routes.
Why now September scores 100/100 for comfort, good conditions for being outside.
Donner Lake
Mountain lake just west of town below Donner Pass, ringed by snowy granite peaks in winter.
Why now Highs near 74°F and 0.3 in of monthly rain make this an easy outdoor pick.
Truckee Depot
Downtown train depot where Amtrak's California Zephyr stops, with a visitor center and a caboose outside.
Sugar Bowl
Ski resort on Donner Summit, opened in 1939, that gets some of the deepest snow in the Sierra.
Why now One to do outside while the weather is on your side.
Nearby in September
- Tahoe City & Palisades in September~13 mi · highs 74°F, 0.4 in rain · similar daytime temperatures, about as wet
- South Lake Tahoe in September~31 mi · highs 74°F, 0.4 in rain · similar daytime temperatures, about as wet
- Old Sacramento Waterfront in September~89 mi · highs 91°F, 0.2 in rain · 9°C (17°F) warmer by day, about as wet
- Napa in September~126 mi · highs 85°F, 0.1 in rain · 6°C (11°F) warmer by day, about as wet
NASA POWER 2001–2025 monthly averages on a ~50 km grid. Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Truckee in September: quick answers
Is September a good time to visit Truckee?
Yes. On the climate data it's one of the best months, scoring 100/100. Expect highs of 74°F (24°C) and 0.3 in (8 mm) of rain. Our South Lake Tahoe, Tahoe City & Truckee route recommends Dec – Mar, so September is outside its suggested window.
How hot is Truckee in September?
Average highs are 74°F (24°C) and average lows 46°F (8°C), making it the 4th-warmest month by daytime highs.
Does it rain a lot in Truckee in September?
Not much: about 0.3 in (8 mm) of rain falls across September on average, the 3rd-driest month of the year. The annual total is about 21.0 in (534 mm).
What should I pack for Truckee in September?
Bring light, breathable clothes (74°F afternoons), sunscreen, sunglasses and a hat (high UV on clear days), a warm layer for evenings (lows near 46°F), lip balm and moisturizer (dry air) and comfortable walking shoes (most picks involve some walking).
Planning Truckee in September?
Bring the crew into one shared trip: vote on dates, build the day-by-day plan, split costs and share one packing list.