Greenisland, Northern Ireland Climate
United Kingdom
Pop. 5,073 Elev. 53 m / 174 ft
TZ: Europe/London (UTC+1) ·
Temperatures in Greenisland stay moderate year-round, from 41°F (5°C) in January to 63°F (17°C) in August. Expect around 76 rainy days annually (44.9 in / 1141 mm total). Overcast skies are common, with only 64 sunny days per year. Ocean water temperatures reach 60°F (15°C) in summer.
| Temperature | 17°C (63°F) high | 5°C (41°F) low |
| Feels like | 2°C (36°F) low | |
| Rain | 76 days | 1141 mm (44.9 in) /yr |
| Sky | 64 sunny | 17 stormy |
| Wind | 2.4 m/s (5.3 mph) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Jul, Aug
Sky & Air by Month
Cloud cover (%)
67
Jan 70
Feb 67
Mar 57
Apr 45
May 73
Jun 72
Jul 63
Aug 71
Sep 78
Oct 73
Nov 67
Dec Humidity (%)
84
Jan 81
Feb 81
Mar 80
Apr 78
May 82
Jun 86
Jul 83
Aug 81
Sep 83
Oct 82
Nov 85
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 10 km George Best Belfast City Airport (BHD)
Ski resort 166 km Ski Club Of Ireland
National park 16 km Strangford AONB
Hospital 3 km Whiteabbey Hospital
Hiking trail 3 km Gentle Walk
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 7°C 45°F | 5°C 41°F | 69 mm 2.7 in | 5 mm0.2 in | 4 |
| February | 8°C 46°F | 5°C 41°F | 59 mm 2.3 in | 0 mm0.0 in | 7 |
| March | 9°C 49°F | 6°C 44°F | 28 mm 1.1 in | — | 5 |
| April | 11°C 52°F | 8°C 46°F | 73 mm 2.9 in | — | 10 |
| May | 13°C 56°F | 10°C 50°F | 60 mm 2.4 in | — | 13 |
| June | 15°C 59°F | 12°C 53°F | 135 mm 5.3 in | — | 1 |
| July | 16°C 62°F | 14°C 57°F | 96 mm 3.8 in | — | 5 |
| August | 17°C 63°F | 14°C 57°F | 62 mm 2.5 in | — | 5 |
| September | 15°C 59°F | 12°C 53°F | 136 mm 5.3 in | — | 3 |
| October | 13°C 55°F | 10°C 51°F | 142 mm 5.6 in | — | 3 |
| November | 10°C 51°F | 8°C 46°F | 164 mm 6.4 in | 1 mm0.0 in | 3 |
| December | 9°C 48°F | 6°C 43°F | 118 mm 4.7 in | — | 5 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 4 | 0 |
| February | 7 | 0 |
| March | 5 | 0 |
| April | 10 | 2 |
| May | 13 | 2 |
| June | 1 | 1 |
| July | 5 | 3 |
| August | 5 | 0 |
| September | 3 | 2 |
| October | 3 | 4 |
| November | 3 | 1 |
| December | 5 | 2 |
Water Temperatures Data
↑ See chart| Month | Ocean Avg High | Lake Avg High |
|---|---|---|
| January | 10°C 50°F | 5°C 42°F |
| February | 8°C 47°F | 6°C 42°F |
| March | 8°C 47°F | 7°C 44°F |
| April | 10°C 49°F | 9°C 48°F |
| May | 12°C 53°F | 12°C 54°F |
| June | 13°C 56°F | 14°C 57°F |
| July | 15°C 59°F | 16°C 61°F |
| August | 15°C 60°F | 16°C 61°F |
| September | 15°C 59°F | 13°C 56°F |
| October | 14°C 58°F | 11°C 53°F |
| November | 13°C 55°F | 9°C 47°F |
| December | 11°C 52°F | 7°C 44°F |