Beach · United Kingdom
Best time to visit Portstewart
The best time to visit Portstewart is June, with daytime temperatures around 16°C.
Portstewart at a glance: warmest in July with daytime temperatures around 17°C and coolest in January (7°C). The wettest month is October (135 mm) and the driest April (67 mm), with about 1,220 mm of rain a year. The sea is warmest in August (15°C). Sunniest in April.
Eddigo
Loading climate data…
Portstewart
20 mMild, showery and grey
38
16°/10°12°80 mm22 %17 h
A typical mid-June in Portstewart
Sunny 4Cloudy 10Rain 16
Daytime temperature (night ☾)
10°13°20°0°30°
Sea temperature
12°0°30°
Daylight (solar time)
03:1820:42
0006121824
17 h 24 m
Precipitation
0140 mm
80 mm
Air feel
FreshComfortableHumidMuggy
RH 84 %
Month by month
| Month | Score | Day | Night | Sea | Rain | Wet days | Sun | Daylight | Feels like |
|---|---|---|---|---|---|---|---|---|---|
| January | 13 | 7° | 3° | 9° | 120 mm | 23 | 15 % | 8 h | Chilly, rainy and grey |
| February | 13 | 8° | 3° | 8° | 104 mm | 19 | 17 % | 10 h | Chilly, rainy and grey |
| March | 13 | 9° | 3° | 8° | 89 mm | 19 | 19 % | 12 h | Chilly, rainy and grey |
| April | 21 | 11° | 5° | 8° | 67 mm | 16 | 29 % | 14 h | Chilly and showery |
| May | 26 | 14° | 7° | 10° | 78 mm | 17 | 25 % | 16 h | Mild, showery and grey |
| June | 38 | 16° | 10° | 12° | 78 mm | 16 | 22 % | 17 h | Mild, showery and grey |
| July | 37 | 17° | 11° | 14° | 97 mm | 20 | 20 % | 17 h | Mild, rainy and grey |
| August | 37 | 17° | 11° | 15° | 105 mm | 20 | 19 % | 15 h | Mild, rainy and grey |
| September | 30 | 16° | 10° | 15° | 95 mm | 19 | 19 % | 13 h | Mild, rainy and grey |
| October | 17 | 13° | 8° | 13° | 135 mm | 22 | 21 % | 10 h | Mild, rainy and grey |
| November | 13 | 10° | 5° | 12° | 123 mm | 23 | 16 % | 8 h | Chilly, rainy and grey |
| December | 13 | 8° | 4° | 10° | 127 mm | 24 | 12 % | 7 h | Chilly, rainy and grey |
The score (0–100) combines daytime temperature, rain days, humidity and cloud cover, weighted for a typical warm-weather trip: 20–28 °C, little rain. On the map you can change these preferences.
Climate averages 2016–2025 (ERA5, CRU TS). Sea temperature from ERA5. Not a forecast. Elevation: 16 m. Coordinates: 55.18, -6.71.