Climate in Ulster

Average daytime and nighttime temperatures

All climate diagrams on this site result from the collected data from three measuring weather stations in Ulster.
All data correspond to the average monthly values of the last 20 years.

Back to overview: Ireland

Ulster is the coldest region in Ireland with an average high temperature of only 12°C. It rarely gets really warm up here. Due to the warmer temperatures, the best time for traveling is from June to September. Less attractive are the cold months from November to March.
Overview: Climate in Ireland
Daylengths and sun positions in Ireland
Compare climate with other regions or countries
Sunshine hours per day
The number of hours of sunshine refers to the time when the sun is actually visible. That is, without any obstruction of visibility by clouds, fog or mountains. With 6 hours per day, May is the sunniest month in the region of Ulster. In December, the sun shines the least.
Rain days per month
A rain day is a day on which at least 0.1 mm precipitation (=0.1 liter) per square meter falls. This can be rain, snow, hail or even dew. So it does not have to rain the whole day. With 21 rain days, December offers the most rain days, while April has the fewest.
Precipitation amount in mm/day
The amount of precipitation is measured in millimeters per square meter. Thus, at two mm/day, two liters of water fall on one square meter within 24 hours. With only 2.1 mm, the least amount of rain falls in April. December, on the other hand, has the most rain.
Climate charts for other regions in Ireland

Map of Ulster

Most important cities in the region »Ulster«

Only very small villages are located here. The two biggest are Letterkenny and Cavan. The region has a west-east extension of about 110 km and over 160 km from north to south.

CityPopulationGeo position
Letterkenny16,90154° 57' 0"N7° 43' 60"W
Cavan6,38853° 59' 27"N7° 21' 38"W
Monaghan5,93754° 15' 0"N6° 58' 0"W
Buncrana5,54655° 7' 60"N7° 27' 0"W
Ballybofey4,85254° 47' 60"N7° 46' 60"W
Gweedore4,20055° 3' 1"N8° 13' 55"W
Carrickmacross3,99553° 58' 22"N6° 43' 8"W
Dunlewy3,40055° 1' 0"N8° 5' 60"W
Castleblayney3,00654° 7' 0"N6° 43' 60"W
Ballyshannon2,68354° 30' 0"N8° 10' 60"W
Donegal2,60754° 38' 60"N8° 7' 0"W
Ballyjamesduff2,56853° 51' 55"N7° 12' 10"W
Carndonagh2,53455° 15' 0"N7° 16' 0"W
Bailieborough2,53053° 55' 0"N6° 58' 0"W
Kingscourt2,32653° 54' 29"N6° 48' 20"W
Virginia2,28253° 50' 2"N7° 4' 32"W
Bundoran1,86554° 28' 40"N8° 16' 51"W
Clones1,83454° 10' 60"N7° 13' 60"W
Cootehill1,71354° 4' 21"N7° 4' 55"W
Leifear1,65854° 49' 55"N7° 29' 1"W
Derrybeg1,55355° 4' 60"N8° 17' 22"W
Moville1,48155° 10' 60"N7° 2' 60"W
Convoy1,43854° 51' 39"N7° 39' 56"W
Killybegs1,29754° 37' 60"N8° 26' 60"W
Belturbet1,27754° 6' 0"N7° 27' 0"W
Muff1,27155° 4' 0"N7° 16' 0"W
Ramelton1,21255° 2' 12"N7° 38' 57"W
Dungloe1,18354° 57' 4"N8° 21' 33"W
Raphoe1,15754° 52' 29"N7° 35' 54"W
Mullagh1,13753° 48' 47"N6° 57' 5"W

Data basis: German Weather Service, individual values averaged and supplemented by own elements. Data on cities and inhabitants:, United Nations Statistics Division and own research.
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