Derry Sea Temperature
(Today) 2024
The water will feel medium. The water will feel a bit chilly in just bathers / swimming costume. If you plan on wearing a wetsuit 4/3mm should be thick enough.
Current weather
(clear sky)
The measurements for the water temperature in Derry, N Ireland are provided by the daily satellite readings provided by the NOAA. The temperatures given are the sea surface temperature (SST) which is most relevant to recreational users.
*Live data may vary from satellite readings for a number of reasons. These include local factors, depth of smapling and time of day.
Water temp by month
Monthly average max / min water temperatures
The graph below shows the range of monthly Derry water temperature derived from many years of historical sea surface temperature data.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min °C | 8.5 | 8.2 | 8 | 8.5 | 9.9 | 10 | 12.4 | 13.6 | 13.3 | 12 | 11.3 | 9.9 |
| Max °C | 10.9 | 10 | 9.9 | 10.6 | 11.6 | 14.4 | 15.6 | 15.9 | 15.4 | 14.4 | 13.1 | 11.8 |
| Min °F | 48.3 | 47.5 | 47.1 | 48.1 | 50.5 | 51.8 | 55.6 | 57.4 | 56.7 | 54.6 | 53.1 | 50.5 |
| Max °F | 50.7 | 49.3 | 49 | 50.2 | 52.2 | 56.2 | 58.8 | 59.7 | 58.8 | 57 | 54.9 | 52.4 |
The warmest water temperature is in August with an average around 58.5°F / 14.7°C. The coldest month is March with an average water temperature of 48°F / 8.9°C.
