Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
September in Buffalo brings high temperatures, with daytime highs of 22°C (72°F) and nights around 13°C (55°F). Quite a bit of rainfall is expected, around 99 mm (3.9 in), so pack an umbrella.
If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit.
Pick a month to see the average temperature, rainfall and sunshine in Buffalo - and find the best time to visit.
50-year average (1976-2025)
Based on our historical records, temperatures in Buffalo typically drop from around 25°C (77°F) at the start of September to approximately 19°C (66°F) by the end. Nights are cool, with lows typically ranging from 10°C (50°F) to 15°C (59°F).
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Browse day-by-day weather records for Buffalo spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
The extremes listed below come from historical weather data collected in Buffalo from 1976 through 2025.
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in September →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity
See the full Buffalo climate overview or explore weather in the United States of America.
Where to go in September - average daytime high across popular destinations.
Need travel inspiration? Check out our bucket list articles and be inspired.
Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
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