Castledawson, Northern Ireland Climate
United Kingdom
Pop. 2,263 Elev. 33 m / 108 ft
TZ: Europe/London (UTC+1) ·
Castledawson sees cool summers peaking at 67°F (19°C) in August, and cool winters that bottom out around 36°F (2°C) in January. Precipitation occurs on roughly 67 days per year (37.4 in / 949 mm total), with 1 in (34 mm) of annual snowfall. Overcast skies are common, with only 43 sunny days per year. Ocean water temperatures reach 60°F (16°C) in summer.
| Temperature | 19°C (67°F) high | 2°C (36°F) low |
| Feels like | 1°C (33°F) low | |
| Rain | 67 days | 949 mm (37.4 in) /yr |
| Snow | 0 days | 34 mm (1.3 in) /yr |
| Sky | 43 sunny | 16 stormy |
| Wind | 1.8 m/s (4.1 mph) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: May, Jul, Aug
Sky & Air by Month
Cloud cover (%)
72
Jan 72
Feb 73
Mar 59
Apr 52
May 78
Jun 77
Jul 70
Aug 77
Sep 82
Oct 76
Nov 72
Dec Humidity (%)
88
Jan 83
Feb 79
Mar 74
Apr 70
May 78
Jun 80
Jul 79
Aug 83
Sep 86
Oct 87
Nov 89
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 26 km Belfast International Airport (BFS)
Ski resort 175 km Ski Club Of Ireland
National park 8 km
Hospital 3 km Mid-Ulster Hospital
Hiking trail 18 km Carntogher Way
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 7°C 44°F | 2°C 36°F | 41 mm 1.6 in | 26 mm1.0 in | 3 |
| February | 8°C 47°F | 4°C 39°F | 59 mm 2.3 in | 4 mm0.1 in | 3 |
| March | 11°C 52°F | 5°C 40°F | 26 mm 1.0 in | — | 3 |
| April | 14°C 58°F | 6°C 43°F | 81 mm 3.2 in | — | 9 |
| May | 17°C 63°F | 8°C 46°F | 58 mm 2.3 in | — | 10 |
| June | 18°C 64°F | 11°C 52°F | 115 mm 4.5 in | — | 0 |
| July | 19°C 67°F | 13°C 56°F | 94 mm 3.7 in | — | 4 |
| August | 19°C 67°F | 13°C 55°F | 55 mm 2.2 in | — | 3 |
| September | 16°C 60°F | 9°C 49°F | 111 mm 4.4 in | — | 2 |
| October | 13°C 55°F | 9°C 48°F | 115 mm 4.5 in | — | 0 |
| November | 10°C 50°F | 5°C 42°F | 108 mm 4.3 in | 4 mm0.2 in | 1 |
| December | 8°C 47°F | 4°C 39°F | 86 mm 3.4 in | — | 5 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 3 | 0 |
| February | 3 | 0 |
| March | 3 | 0 |
| April | 9 | 0 |
| May | 10 | 2 |
| June | 0 | 3 |
| July | 4 | 4 |
| August | 3 | 0 |
| September | 2 | 3 |
| October | 0 | 3 |
| November | 1 | 0 |
| December | 5 | 1 |
Water Temperatures Data
↑ See chart| Month | Ocean Avg High | Lake Avg High |
|---|---|---|
| January | 10°C 49°F | 5°C 41°F |
| February | 9°C 48°F | 5°C 41°F |
| March | 8°C 47°F | 6°C 43°F |
| April | 9°C 49°F | 8°C 47°F |
| May | 11°C 53°F | 12°C 53°F |
| June | 14°C 56°F | 14°C 57°F |
| July | 15°C 59°F | 17°C 62°F |
| August | 16°C 60°F | 16°C 62°F |
| September | 15°C 60°F | 13°C 56°F |
| October | 14°C 58°F | 11°C 52°F |
| November | 13°C 56°F | 8°C 47°F |
| December | 11°C 53°F | 6°C 43°F |