Measurements:
°C
°F
Bethlehem
46°F
SE 5 mph
Feels like: 44°F
Precip: 4%
World Resorts USA Bethlehem Weather September Weather in Bethlehem

Bethlehem Weather: September

Average Day Temperature: 75.5°F
Average Night Temperature: 59.1°F
Number of Sunny Days: 12 days
Sunshine Hours: 11.8 - 13.1 hours
Number of Rainy Days: 2 days
Precipitation Totals: 1.2 in

Air Temperature in September, °F

Select Year: 2026 2025 2024

The highest day temperature in September 2026 was 92°F. The lowest night temperature was 43°F. The average values for day and night temperatures during September were 75.1°F и 61.1°F respectivly.

Sunny, Cloudy and Gloomy days

You can expect various weather conditions during September. Be ready for sunny, cloudy or even gloomy days.

Precipitation Totals in September, in

Precipitation total in September for Bethlehem is 1.2 in.

Wind Speed in September, mph

The average wind speed in September is 5.8 mph. It makes September one of the most windless months of the year for Bethlehem.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Bethlehem in September is 7.0 hours.

Best Time to Visit Bethlehem
The most sunny months:
October 16 days
November 13 days
June 13 days
The most warm months:
July 87.0 °F
August 83.3 °F
June 80.5 °F
The most cold months:
January 32.8 °F
February 35.9 °F
December 38.1 °F
The most rainy months:
August 3 days
July 3 days
March 3 days
The most windy months:
March 8 mph
April 8 mph
January 7 mph

Bethlehem on the Weather Map

USA Resorts:
NAME
F°
Boston +58
Chicago +62
Hawaii +82
Houston +86
Las Vegas +92
Los Angeles +100
Maui +74
Miami +88
Myrtle Beach +70
New York +62
San Diego +84
San Francisco +66
Santa Monica +94
Sarasota +84
Washington +64
24 Hours Weather Forecast
Bethlehem
Local time: 19:46
05 oct, monday
2100 46°F
SE
5 mph
06 oct, tuesday
0000 42°F
SE
4 mph
0300 38°F
SE
6 mph
0600 36°F
SE
5 mph
0900 48°F
SE
10 mph
1200 58°F
SE
11 mph
1500 62°F
SE
9 mph
1800 52°F
SE
4 mph