Portstewart Sea Conditions table showing wave height, swell direction and period.
High and low tide times are also provided on the table along with the moon phase and forecast weather. Sunrise today is at 07:47 AM and sunset is at 04:32 PM.
Days 1–3 Weather SummarySome drizzle, heaviest during Sat night. Cool air temperatures (max 12°C on Fri morning, min 9°C on Fri night). Wind will be generally light. | Days 4–6 Weather SummaryMostly dry. Cool air temperatures (max 12°C on Wed night, min 8°C on Mon morning). Wind will be generally light. | Days 7–9 Weather SummaryMostly dry. Very mild (max 11°C on Thu morning, min 9°C on Thu night). Wind will be generally light. | Days 10–12 Weather SummaryModerate rain (total 17mm), heaviest on Sun night. Very mild (max 11°C on Sun morning, min 4°C on Tue afternoon). Mainly fresh winds. | |||||||||||||||||||||||||||||||||
Friday 8 | Saturday 9 | Sunday 10 | Monday 11 | Tuesday 12 | Wednesday 13 | Thursday 14 | Friday 15 | Saturday 16 | Sunday 17 | Monday 18 | Tuesday 19 | |||||||||||||||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
Wave Height Map |  |  |  |  |  |  |  |  |  |  |  |  | ||||||||||||||||||||||||
High Tide | 10:04AM1.36m | 10:21PM1.12m | 11:36AM1.35m | 00:12AM1.08m | 1:11PM1.45m | 1:50AM1.16m | 2:17PM1.62m | 2:51AM1.31m | 3:09PM1.78m | 3:39AM1.47m | 3:55PM1.91m | 4:22AM1.62m | 4:39PM1.97m | 5:03AM1.75m | 5:22PM1.96m | 5:43AM1.85m | 6:03PM1.88m | 6:23AM1.88m | 6:44PM1.75m | 7:04AM1.87m | 7:25PM1.58m | 7:48AM1.79m | 8:05PM1.41m | |||||||||||||
Low Tide | 5:01PM0.70m | 4:50AM0.59m | 6:49PM0.65m | 6:28AM0.57m | 8:09PM0.52m | 7:45AM0.49m | 9:05PM0.35m | 8:46AM0.37m | 9:51PM0.20m | 9:38AM0.24m | 10:31PM0.09m | 10:27AM0.12m | 11:09PM0.04m | 11:14AM0.05m | 11:45PM0.03m | 12:00PM0.02m | 00:21AM0.07m | 12:47PM0.06m | 00:58AM0.14m | 1:36PM0.15m | 1:35AM0.22m | 2:27PM0.29m | 2:16AM0.32m | |||||||||||||
NW 11 | NW 12 | NW 11 | NW 10 | NW 9 | NW 12 | NW 12 | NW 11 | NW 13 | NW 13 | NW 12 | NW 10 | NW 10 | NW 9 | NW 13 | NW 15 | NW 14 | NW 13 | NW 13 | NW 11 | NNW 10 | NW 10 | NW 9 | NW 8 | NW 7 | NW 10 | NW 9 | NW 12 | NW 10 | NW 12 | NW 14 | NW 13 | NW 13 | NW 12 | NNW 11 | NNW 12 | |
 | |  |  |  |  | | | | | |  | | | | | | | | | | | |  | | | | | |  |  | | |  | | | |
cloudy | cloudy | some clouds | clear | some clouds | rain shwrs | cloudy | clear | some clouds | some clouds | some clouds | clear | clear | clear | clear | some clouds | cloudy | some clouds | some clouds | cloudy | some clouds | cloudy | cloudy | cloudy | cloudy | cloudy | cloudy | cloudy | cloudy | light rain | rain shwrs | rain shwrs | rain shwrs | light rain | light rain | light rain | |
km/h | ||||||||||||||||||||||||||||||||||||
— | — | — | — | — | 1.0 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 5 | 1.0 | 2.0 | 3 | 2.0 | 2.0 | 2.0 | |
max°C | 12 | 12 | 10 | 11 | 11 | 12 | 12 | 11 | 10 | 8 | 9 | 8 | 8 | 9 | 9 | 10 | 11 | 12 | 11 | 11 | 11 | 9 | 9 | 10 | 9 | 10 | 11 | 11 | 11 | 10 | 7 | 7 | 6 | 6 | 6 | 5 |
Moonrise | 2:29 | — | — | 2:42 | — | — | 2:51 | — | — | 2:59 | — | — | — | 3:06 | — | — | 3:13 | — | — | 3:23 | — | — | 3:36 | — | — | 3:57 | — | — | 4:33 | — | — | 5:30 | — | — | 6:48 | — |
Moonset | — | — | 10:03 | — | — | 11:36 | — | — | — | 1:09 | — | — | 2:43 | — | — | 4:17 | — | — | 5:56 | — | — | 7:38 | — | — | 9:21 | — | — | 10:56 | — | — | 12:10 | — | — | 12:58 | — | — |
 | 7:47 | — | — | 7:48 | — | — | 7:50 | — | — | 7:52 | — | — | 7:54 | — | — | 7:56 | — | — | 7:58 | — | — | 8:00 | — | — | 8:03 | — | — | 8:04 | — | — | 8:07 | — | — | 8:08 | — | — |
 | — | 4:32 | — | — | 4:30 | — | — | 4:29 | — | — | 4:27 | — | — | 4:25 | — | — | 4:23 | — | — | 4:22 | — | — | 4:21 | — | — | 4:19 | — | — | 4:17 | — | — | 4:15 | — | — | 4:15 | — |
Today's sea temperature in Portstewart is 12.5 °C (Statistics for 08 Nov 1981-2005 – mean: 11.5 max: 12.5 min: 10.7°C) | ||||||||||||||||||||||||||||||||||||
Forecast update inUpdates in hr min sUpdate imminent
Nearest