As of 14:55 EDT

South Bethany, DE weather in September

89°

South Bethany, Sunday, 9 August, 14:55

Overcast. Feels like 102°. High 90°, low 74°.

Pressure30.00 inHg

Wind3.8 mph SW

Humidity69%

Visibility6.2 mi

Dew point78°

See detailed hourly forecast

In September, South Bethany, DE averages a high of 75.4° and a low of 66.4°. About 3.7 inches of precipitation fall over the month (9 wet days). The record high is 92.1° (2023) and the record low 48.7° (1989). Normals are computed over the last 60 years.

Day	High	Low	Chance of precip.	Record high	Record low
1	78.4°	70°	37%	88.3° (2010)	59° (1986)
2	78.6°	69.4°	37%	88.5° (1980)	59.5° (2023)
3	78.6°	69.8°	33%	89.4° (2023)	59.2° (1967)
4	79.2°	69.4°	25%	92.1° (2023)	59° (1997)
5	78.3°	69.6°	30%	88.5° (1985)	59.7° (1994)
6	78.3°	69.1°	38%	91° (1983)	59.9° (1962)
7	77.9°	68.5°	27%	90.5° (1983)	58.3° (1965)
8	77.2°	68°	32%	89.2° (1985)	57.7° (2024)
9	77°	68°	32%	89.1° (1985)	56.3° (2024)
10	77.2°	68.4°	35%	89.1° (1983)	60.3° (2024)
11	77°	67.5°	22%	91.9° (1983)	57.6° (1972)
12	76.3°	66.9°	30%	88.5° (1983)	57.6° (1967)
13	76.8°	66.9°	22%	87.6° (2021)	58.1° (1985)
14	76.3°	67.3°	32%	86.2° (2008)	56.3° (1975)
15	75.2°	66.4°	25%	83.8° (1970)	57.2° (1985)
16	74.5°	65.5°	25%	87.4° (1970)	54.9° (1985)
17	74.7°	66°	30%	86.2° (1991)	53.6° (1986)
18	75°	65.5°	35%	84.6° (1970)	53.1° (1990)
19	74.5°	65.1°	28%	85.5° (1983)	55.8° (1984)
20	74.1°	65.1°	18%	84° (1997)	54.7° (2019)
21	74.3°	65.3°	27%	82.2° (1965)	52.5° (1962)
22	74.5°	65.3°	30%	86.4° (1970)	52.3° (1962)
23	73.6°	63.9°	27%	88.7° (1970)	52.3° (1963)
24	72.5°	63.5°	20%	87.3° (2010)	52° (1974)
25	72.7°	63.9°	37%	85.1° (1970)	52.9° (1983)
26	73.6°	64.2°	28%	84° (1970)	50.9° (1967)
27	73.4°	64.4°	42%	85.1° (1998)	54.5° (1984)
28	72.9°	63.9°	37%	82.9° (2024)	48.7° (1989)
29	70.7°	63°	30%	82.4° (1973)	53.8° (1981)
30	70.3°	61.9°	35%	81.5° (1986)	51.6° (1992)