Galena Weather in September
September in Galena sees daytime temperatures around 24°C (75°F) and lows of 11°C (52°F) at night. With around 82 mm (3.2 in) of rainfall expected, it's worth packing a rain jacket.
Rainfall in Galena in September
You can expect rain on roughly 10 days based on historical data, averaging 82 mm (3.2 in) for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.
Temperature in Galena in September
Galena has perfect weather in September, with days reaching 24°C (75°F) and nights cooling to 11°C (52°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights drop to around 11°C (52°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.
Sunshine in Galena in September
The days are predominantly sunny, with an estimated total of around 221 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.If your ideal day consists of dry skies and pleasant temperatures, September typically offers the best circumstances for Galena.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Galena's climate page.
Galena Temperature in September
Min Temperature
11°C (52°F)
Max Temperature
24°C (75°F)
Chance of Rain
33%
Precipitation
82 mm (3.2 in)
Rainy days
10 days
Sunshine
221 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Galena typically drop from around 25°C (77°F) at the start of September to approximately 21°C (70°F) by the end. Nights are cool, with lows typically ranging from 9°C (48°F) to 15°C (59°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Galena in September
Browse day-by-day weather records for Galena spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Galena historical weather extremes in September
The extremes listed below come from historical weather data collected in Galena from 1976 through 2025.
- The hottest September day on record in Galena reached 35°C (95°F) (September 9, 2013).
- Galena registered its coldest September night on September 24, 1989, with temperatures dropping to -2°C (28°F).
Best Places in the United States of America in September
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
pleasant
tolerable
unpleasant
poor
What to Wear in Galena in September
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. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Galena in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Galena's climate page.
See the full Galena climate overview or explore weather in the United States of America.
