Seaford (DE) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Seaford.
Climate overview of Seaford
Temperatures in Seaford, Delaware, United States of America, vary greatly throughout the year. July is the hottest month at 31°C (88°F), while January is the coldest at 7°C (45°F).
The city has a wet climate, receiving around 1250 mm (49 in) of rain/snowfall per year. Despite the high annual total, it has very warm summers and cold winters. October is the wettest month.
Seaford Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Seaford - and find the best time to visit.
Monthly Temperature in Seaford
The climate in Seaford is known for significant temperature differences throughout the year, making the weather dynamic. On average, daytime temperatures range from a very warm 31°C (88°F) in July to a chilly 7°C (45°F) in January.
Nighttime temperatures range from 21°C (70°F) in July to -3°C (27°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Seaford
Seaford has a notably wet climate with abundant precipitation, recording 1250 mm (49 in) of rain/snowfall per year. The amount of precipitation varies moderately throughout the year. The wettest month, October, sees around 138 mm (5.4 in) of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, February, still receives a respectable 71 mm (2.8 in) of rainfall. For more details, please visit our Seaford Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Humidity in Seaford by Month
The relative humidity is high throughout the year in Seaford.
The city experiences its highest humidity in August, reaching 76%. In March, the humidity drops to its lowest level at 64%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Seaford
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May
- Warmest weather: July and August
- Seasonal pattern: Very warm summers and cold winters
- Coldest conditions: January, with freezing nights around -3°C (27°F).
Frequently asked questions about the climate in Seaford
What is the best time to visit Seaford?
May typically offers the most optimal weather in Seaford. In contrast, January, February and December tend to have less optimal conditions. Seaford has very warm summers and cold winters.
What temperatures can I expect in Seaford?
Daytime highs range from 7°C (45°F) in January to 31°C (88°F) in July. Nighttime lows range from -3°C (27°F) to 21°C (70°F). Temperatures vary considerably through the year.
How much rain does Seaford get?
Annual rainfall is around 1250 mm (49 in). October is the wettest month with 138 mm (5.4 in), while February is the driest with 71 mm (2.8 in).
Seaford 3-Day Forecast
Seaford on the map
Seaford is highlighted - select any city to see its climate.
Popular this month
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