Water temperature in Annapolis (MD) in April
Is it warm enough to swim in Annapolis in April? Average water temperature in Annapolis in April is 53.2°F and therefore is not suitable for comfortable swimming. The warmest sea in Annapolis in April is 63.1°F, and the coldest is 42.4°F. Average high air temperature in Annapolis in April is 64°F, and average low temperature is 46°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Annapolis
Changes water temperature in Annapolis in April 2025, 2024
To get an accurate forecast for the water temperature in Annapolis for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Annapolis, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of April.
You can choose any other years:
| Day | 2025 | 2024 | Min | Max |
|---|---|---|---|---|
| April 1 | 52.9°F | 50.5°F | 42.4°F | 52.9°F |
| April 2 | 52.3°F | 50.2°F | 43.2°F | 53.1°F |
| April 3 | 53.4°F | 50°F | 44.1°F | 53.4°F |
| April 4 | 55°F | 50°F | 45.1°F | 55°F |
| April 5 | 55.4°F | 49.3°F | 45.1°F | 55.4°F |
| April 6 | 55.4°F | 48.9°F | 45.3°F | 55.9°F |
| April 7 | 54.3°F | 49.6°F | 46°F | 56.1°F |
| April 8 | 53.6°F | 51.1°F | 46.2°F | 56.8°F |
| April 9 | 51.6°F | 51.4°F | 46.2°F | 59.9°F |
| April 10 | 51.3°F | 52.9°F | 46.8°F | 56.3°F |
| April 11 | 51.1°F | 53.8°F | 46.9°F | 57.2°F |
| April 12 | 50°F | 53.6°F | 47.5°F | 56.7°F |
| April 13 | 50.5°F | 53.4°F | 47.3°F | 58.6°F |
| April 14 | 51.8°F | 54.5°F | 46.9°F | 59.4°F |
| April 15 | 52.5°F | 56.5°F | 46.9°F | 60.3°F |
| Day | 2025 | 2024 | Min | Max |
|---|---|---|---|---|
| April 16 | 52°F | 57.4°F | 47.1°F | 61°F |
| April 17 | 52.7°F | 57.4°F | 46.9°F | 59.9°F |
| April 18 | 54.1°F | 58.5°F | 46.6°F | 59.4°F |
| April 19 | 55.6°F | 58.5°F | 46.4°F | 59.2°F |
| April 20 | 56.7°F | 59°F | 47.1°F | 60.4°F |
| April 21 | 56.8°F | 58.6°F | 48.2°F | 61.7°F |
| April 22 | 59.4°F | 57.6°F | 49.3°F | 62.6°F |
| April 23 | 60.3°F | 57.6°F | 51.8°F | 61.3°F |
| April 24 | 61.2°F | 57.9°F | 52.3°F | 62.1°F |
| April 25 | 61.7°F | 58.1°F | 52.7°F | 61.7°F |
| April 26 | 61.5°F | 58.6°F | 53.8°F | 62.6°F |
| April 27 | 59°F | 58.1°F | 52.9°F | 61.2°F |
| April 28 | 59.7°F | 59.5°F | 52.2°F | 60.4°F |
| April 29 | 60.8°F | 61°F | 51.3°F | 61.7°F |
| April 30 | 62.2°F | 61.7°F | 50.5°F | 63.1°F |
Average water temperature in Annapolis in April over a decade
| 2016 | 2017 | 2018 | 2019 | 2020 |
| 53.8°F | 55.4°F | 50.5°F | 54.9°F | 53.8°F |
| 2021 | 2022 | 2023 | 2024 | 2025 |
| 55°F | 52.5°F | 57.6°F | 55.2°F | 55.4°F |
Annapolis sea state in April
Chart comparing the height of waves in Annapolis in April 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 Annapolis in April
This data display average monthly climate indicators in Annapolis in April 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 temperature64°F
- Average LOW temperature46°F
- Average rainfall days11 days
- Average rainfall94mm/3.7''
- Average daylight13h
- Average sunshine8h
- Average UV index6
Annapolis water temperature during other months:
You can also view information about water temperature for other months by clicking on the month button below
