# County Antrim, United Kingdom water temperature

The sea around County Antrim is 12 °C to 13 °C at the surface right now. Over the next 7 days it stays between 12 °C and 13 °C.

The water stays close to the surface temperature down to about 34–56 m at the sites we follow; deeper it gets colder.

Most divers here need a 7 mm with hood, or drysuit today.

## Next 7 days

| Day | Surface |
|---|---|
| Sat 14 Nov | 12–13 °C |
| Sun 15 Nov | 12–13 °C |
| Mon 16 Nov | 12–13 °C |
| Tue 17 Nov | 12–13 °C |
| Wed 18 Nov | 12–13 °C |
| Thu 19 Nov | 12–13 °C |
| Fri 20 Nov | 12–13 °C |

## By dive site

| Site | Now | Today | Warm down to | Suit |
|---|---|---|---|---|
| [East Maiden Lighthouse](https://scubaforecast.com/scuba-diving-weather/united-kingdom/county-antrim/islandmagee/east-maiden-lighthouse) (Islandmagee and Larne) | 12.9 °C | 13 °C | past 56 m | 7 mm + hood |
| [Old Lighthouse, West Maiden](https://scubaforecast.com/scuba-diving-weather/united-kingdom/county-antrim/islandmagee/west-maiden-old-lighthouse) (Islandmagee and Larne) | 12.9 °C | 13 °C | past 56 m | 7 mm + hood |
| [SS Albia](https://scubaforecast.com/scuba-diving-weather/united-kingdom/county-antrim/islandmagee/albia-maidens) (Islandmagee and Larne) | 12.9 °C | 13 °C | past 56 m | 7 mm + hood |
| [SS Housatonic](https://scubaforecast.com/scuba-diving-weather/united-kingdom/county-antrim/islandmagee/housatonic-maidens) (Islandmagee and Larne) | 12.7 °C | 13 °C | past 56 m | 7 mm + hood |
| [SS Harrington](https://scubaforecast.com/scuba-diving-weather/united-kingdom/county-antrim/islandmagee/harrington-ferris-point) (Islandmagee and Larne) | 12.7 °C | 13 °C | past 56 m | 7 mm + hood |
| [Isle of Muck North](https://scubaforecast.com/scuba-diving-weather/united-kingdom/county-antrim/islandmagee/isle-of-muck-north-islandmagee) (Islandmagee and Larne) | 12.6 °C | 13 °C | past 56 m | 7 mm + hood |
| [HMS Drake](https://scubaforecast.com/scuba-diving-weather/united-kingdom/county-antrim/rathlin-island/hms-drake-rathlin) (Rathlin Island) | 12.3 °C | 12 °C | past 34 m | 7 mm + hood |
| [Derginan Point](https://scubaforecast.com/scuba-diving-weather/united-kingdom/county-antrim/rathlin-island/derginan-point-rathlin) (Rathlin Island) | 12.2 °C | 12 °C | past 56 m | 7 mm + hood |
| [SS Templemore](https://scubaforecast.com/scuba-diving-weather/united-kingdom/county-antrim/ballycastle/templemore-ballycastle) (Ballycastle and the Causeway Coast) | 12.2 °C | 12 °C | past 34 m | 7 mm + hood |
| [Large Skerries](https://scubaforecast.com/scuba-diving-weather/united-kingdom/county-antrim/portrush/skerries-portrush) (Portrush) | 12.1 °C | 12 °C | past 40 m | 7 mm + hood |

Surface temperature from the Open-Meteo marine forecast; temperature at depth, where available, from Copernicus Marine models (daily averages). Both are model estimates.

## Water temperature by area

- [Rathlin Island](https://scubaforecast.com/water-temperature/united-kingdom/county-antrim/rathlin-island)
- [Islandmagee and Larne](https://scubaforecast.com/water-temperature/united-kingdom/county-antrim/islandmagee)
- [Ballycastle and the Causeway Coast](https://scubaforecast.com/water-temperature/united-kingdom/county-antrim/ballycastle)
- [Portrush](https://scubaforecast.com/water-temperature/united-kingdom/county-antrim/portrush)

## Links

- [This page on the web](https://scubaforecast.com/water-temperature/united-kingdom/county-antrim)
- [Diving conditions in County Antrim](https://scubaforecast.com/scuba-diving-weather/united-kingdom/county-antrim)

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Weather data by Open-Meteo.com (CC BY 4.0). Map data © OpenStreetMap contributors (ODbL). Temperature at depth generated using E.U. Copernicus Marine Service Information.