Measurements:
°C
°F
Bethlehem
108°F
E 7 mph
Feels like: 114°F
Precip: 1%
World Resorts USA Bethlehem Weather September Weather in Bethlehem

Bethlehem Weather: September

Average Day Temperature: 75.6°F
Average Night Temperature: 58.8°F
Number of Sunny Days: 14 days
Sunshine Hours: 11.8 - 13.1 hours
Number of Rainy Days: 2 days
Precipitation Totals: 1.1 in

Air Temperature in September, °F

Select Year: 2025 2024 2023

The highest day temperature in September 2025 was 88°F. The lowest night temperature was 49°F. The average values for day and night temperatures during September were 79.5°F и 59.7°F respectivly.

Sunny, Cloudy and Gloomy days

Most of the days in September are sunny but you can also expect cloudy and gloomy days.

Precipitation Totals in September, in

Precipitation total in September for Bethlehem is 1.1 in.

Wind Speed in September, mph

The average wind speed in September is 5.6 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 7.5 hours.

Best Time to Visit Bethlehem
The most sunny months:
October 16 days
September 14 days
June 13 days
The most warm months:
July 86.2 °F
August 82.9 °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
Boston +96
Chicago +86
Hawaii +82
Houston +80
Las Vegas +118
Los Angeles +100
Maui +78
Miami +96
Myrtle Beach +90
New York +104
San Diego +94
San Francisco +82
Santa Monica +82
Sarasota +96
Tampa +98
24 Hours Weather Forecast
Bethlehem
Local time: 16:47
15 jul, wednesday
1800 108°F
E
7 mph
2100 92°F
SE
3 mph
16 jul, thursday
0000 84°F
SE
2 mph
0300 72°F
E
2 mph
0600 70°F
E
2 mph
0900 82°F
E
6 mph
1200 92°F
E
11 mph
1500 98°F
E
13 mph