Water temperature in Wilmington (DE) in March
Is it warm enough to swim in Wilmington in March? Average water temperature in Wilmington in March is 42.8°F and therefore is not suitable for comfortable swimming. The warmest sea in Wilmington in March is 53.4°F, and the coldest is 31.1°F. Average high air temperature in Wilmington in March is 52°F, and average low temperature is 34°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Wilmington
Changes water temperature in Wilmington in March 2025, 2024
To get an accurate forecast for the water temperature in Wilmington for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Wilmington, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of March.
You can choose any other years:
| Day | 2025 | 2024 | Min | Max |
|---|---|---|---|---|
| March 1 | 38.7°F | 41.9°F | 31.3°F | 44.1°F |
| March 2 | 38.3°F | 42.6°F | 31.6°F | 46°F |
| March 3 | 38.3°F | 45°F | 32.2°F | 45.1°F |
| March 4 | 39.2°F | 44.8°F | 32.7°F | 45.7°F |
| March 5 | 38.8°F | 44.6°F | 32.9°F | 45.5°F |
| March 6 | 39.6°F | 44.4°F | 31.1°F | 45.5°F |
| March 7 | 39.9°F | 44.1°F | 31.8°F | 46°F |
| March 8 | 40.3°F | 46.6°F | 32.5°F | 46.6°F |
| March 9 | 41°F | 45.7°F | 33.4°F | 46.8°F |
| March 10 | 41.4°F | 46.9°F | 33.8°F | 46.9°F |
| March 11 | 42.6°F | 45.9°F | 36.5°F | 46°F |
| March 12 | 42.3°F | 46°F | 36.9°F | 46.2°F |
| March 13 | 37.6°F | 46.6°F | 37°F | 48.4°F |
| March 14 | 38.3°F | 46.2°F | 37.8°F | 49.1°F |
| March 15 | 39.6°F | 46°F | 36.7°F | 48°F |
| Day | 2025 | 2024 | Min | Max |
|---|---|---|---|---|
| March 16 | 42.8°F | 47.3°F | 37°F | 48.9°F |
| March 17 | 47.5°F | 48.9°F | 39°F | 48.9°F |
| March 18 | 46.9°F | 49.6°F | 38.1°F | 50.9°F |
| March 19 | 46.4°F | 49.1°F | 39°F | 51.3°F |
| March 20 | 46.2°F | 48.4°F | 39.2°F | 51.3°F |
| March 21 | 47.3°F | 47.7°F | 40.1°F | 51.8°F |
| March 22 | 48.9°F | 47.1°F | 39.2°F | 53.1°F |
| March 23 | 48.4°F | 46.2°F | 39.6°F | 53.4°F |
| March 24 | 48°F | 46.8°F | 39.2°F | 53.4°F |
| March 25 | 48.6°F | 47.1°F | 39.7°F | 53.1°F |
| March 26 | 48.4°F | 46.4°F | 38.7°F | 52.2°F |
| March 27 | 47.8°F | 46.6°F | 39.2°F | 51.8°F |
| March 28 | 48.2°F | 46.6°F | 39.6°F | 51.8°F |
| March 29 | 48°F | 47.5°F | 39.9°F | 52.3°F |
| March 30 | 49.5°F | 47.7°F | 41°F | 51.8°F |
| March 31 | 48.4°F | 48.2°F | 41.4°F | 51.8°F |
Average water temperature in Wilmington in March over a decade
| 2016 | 2017 | 2018 | 2019 | 2020 |
| 45.3°F | 43.2°F | 41.7°F | 42.1°F | 46.9°F |
| 2021 | 2022 | 2023 | 2024 | 2025 |
| 43.7°F | 44.8°F | 45.3°F | 46.4°F | 43.7°F |
Wilmington sea state in March
Chart comparing the height of waves in Wilmington in March over the past years. The red line indicates the height of the waves when swimming in the sea is prohibited. To view the current sea conditions, click on the graph.
Weather and climate in Wilmington in March
This data display average monthly climate indicators in Wilmington in March based on our historical weather readings over a period of ten years. In addition to temperature, we include data on the number of rainy and sunny days so you can have all the information about your destination before your trip
- Average HIGH temperature52°F
- Average LOW temperature34°F
- Average rainfall days11 days
- Average rainfall99mm/3.9''
- Average daylight12h
- Average sunshine7h
- Average UV index4
- Average snowfall48mm/1.9''
Wilmington water temperature during other months:
You can also view information about water temperature for other months by clicking on the month button below
