Fenwick Island (DE) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Fenwick Island.
Climate overview of Fenwick Island
The climate in Fenwick Island, Delaware, United States of America, is marked by large temperature swings across the seasons, ranging from 30°C (86°F) in July to 7°C (45°F) in January.
With around 1184 mm (47 in) of annual rain/snowfall, Fenwick Island has a notably wet climate. However, this rain/snowfall is not evenly distributed, the city has warm summers and cold winters. The wettest month is October.
Fenwick Island Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Fenwick Island - and find the best time to visit.
Monthly Temperature in Fenwick Island
In Fenwick Island, temperatures differ significantly between summer and winter months. Average daytime temperatures reach a comfortable 30°C (86°F) in July. In January, the coolest month of the year, temperatures drop to a chilly 7°C (45°F).
At night, temperatures range from around 21°C (70°F) in July to -2°C (28°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Fenwick Island
Fenwick Island experiences significant rain/snowfall throughout the year, averaging 1184 mm (47 in) of precipitation annually. Fenwick Island experiences moderate seasonal variation in rainfall, with monthly averages ranging from 134 mm (5.3 in) in October, the wettest month, and 76 mm (3 in) in February, the driest month. For more details, please visit our Fenwick Island Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Water Temperature in Fenwick Island
The mean water temperature over the year ranges from 1°C (34°F) in February to 22°C (72°F) in August.
Water temperature over the year
Humidity in Fenwick Island by Month
The relative humidity is high throughout the year in Fenwick Island.
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 Fenwick Island
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May and June
- Warmest weather: July and August
- Best for swimming: July, August and September.
- Seasonal pattern: Warm summers and cold winters
- Coldest conditions: January, with freezing nights around -2°C (28°F).
Frequently asked questions about the climate in Fenwick Island
What is the best time to visit Fenwick Island?
May and June typically offer the most optimal weather in Fenwick Island. In contrast, January, February and December tend to have less optimal conditions. Fenwick Island has warm summers and cold winters.
What temperatures can I expect in Fenwick Island?
Daytime highs range from 7°C (45°F) in January to 30°C (86°F) in July. Nighttime lows range from -2°C (28°F) to 21°C (70°F). Temperatures vary considerably through the year.
How much rain does Fenwick Island get?
Annual rainfall is around 1184 mm (47 in). October is the wettest month with 134 mm (5.3 in), while February is the driest with 76 mm (3 in).
Fenwick Island 3-Day Forecast
Fenwick Island on the map
Fenwick Island is highlighted - select any city to see its climate.
Popular this month
Where to go in September - average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
The 10 most alternative cities in the United States
Discover the top 10 fun and alternative U.S. cities rich in art, culture, and adventure. From Portland's hippy charm to Sedona's stunning landscapes.
Sedona: Explore Majestic Red Rock Landscapes
A picturesque artists' town surrounded by red rocks and known for its spirituality, vortex energy, and stunning hikes like Cathedral Rock.
10 most idyllic villages to visit in the United States
Discover 10 idyllic villages in the USA, from California to Vermont. Explore their unique charm, rich history, stunning nature, and vibrant arts scenes.