Compare Weather & Climate

Belfast is 140.6 kilometers (87.4 miles) away and has the same time zone with County Donegal, Ireland. Both Belfast and County Donegal are in the same climate zone with Marine west coast, warm summer (Köppen climate classification: Cfb).

Belfast generally has warmer weather than County Donegal. The average mean temperature in Belfast is 9.88°C (49.78°F) while County Donegal’s temperature is 9.78°C (49.6°F) and the difference is 0.1°C (32.18°F). Belfast is warmest on average in July, when the day time temperature may reach 15.28°C (59.5°F), while County Donegal is warmest in July when the average high temperature is 14.94°C (58.89°F). Belfast is coldest in February when the average low temperature is 2.79°C (37.02°F), while February is the coldest month in County Donegal, when night time temperature often falls below 2.6°C (36.68°F).

Finally, Belfast has about 2.36 times less rainfall than County Donegal, (Belfast’s 60.02mm vs County Donegal’s average of 141.86mm).

Comparison summary

WeatherBelfastCounty DonegalDifference
Hottest monthJuly: 15.28°C (59.5°F)July: 14.94°C (58.89°F)0.34°C (32.61°F)
Coldest monthFebruary: 2.79°C (37.02°F)February: 2.6°C (36.68°F)0.19°C (32.34°F)
Wettest monthAugust: 76.24mm (3.0in)December: 169.78mm (6.68in)93.54mm (3.68in)
Driest monthApril: 43.42mm (1.71in)April: 76.23mm (3.0in)32.81mm (1.29in)

Temperature

Average Temperature ( °C )

City Belfast
  • Jan5.12
  • Feb5.28
  • Mar6.46
  • Apr8.83
  • May11.48
  • Jun14.03
  • Jul15.28
  • Aug14.86
  • Sep13.18
  • Oct10.62
  • Nov7.67
  • Dec5.77
  • Yea9.88
City County Donegal
  • Jan5.07
  • Feb5.39
  • Mar6.72
  • Apr9.12
  • May11.47
  • Jun13.85
  • Jul14.94
  • Aug14.6
  • Sep12.96
  • Oct10.28
  • Nov7.25
  • Dec5.75
  • Yea9.78

Average Temperature ( °F )

Precipitation

Precipitation (mm)

City Belfast
  • Jan50.67
  • Feb58.25
  • Mar55.34
  • Apr43.42
  • May46.37
  • Jun75.11
  • Jul66.09
  • Aug76.24
  • Sep51.12
  • Oct73.75
  • Nov62.16
  • Dec61.75
  • Yea60.02
City County Donegal
  • Jan163.33
  • Feb154.45
  • Mar123.36
  • Apr76.23
  • May124.74
  • Jun143.79
  • Jul158.18
  • Aug157.47
  • Sep130.34
  • Oct147.91
  • Nov152.73
  • Dec169.78
  • Yea141.86

Precipitation (in)

Number of days with rainfall

Average Number of Rainy Days ( Days )

City Belfast
  • Jan12.0
  • Feb10.82
  • Mar10.91
  • Apr9.0
  • May10.82
  • Jun14.09
  • Jul14.36
  • Aug15.18
  • Sep10.91
  • Oct11.73
  • Nov11.36
  • Dec12.18
  • Yea11.95
City County Donegal
  • Jan22.36
  • Feb19.36
  • Mar18.45
  • Apr14.73
  • May18.27
  • Jun20.73
  • Jul22.64
  • Aug24.27
  • Sep20.45
  • Oct19.55
  • Nov18.91
  • Dec21.91
  • Yea20.14

Wind Speed

Average Wind Speed ( km/h )

City Belfast
  • Jan21.06
  • Feb20.82
  • Mar18.46
  • Apr16.4
  • May15.65
  • Jun13.85
  • Jul13.58
  • Aug15.09
  • Sep16.94
  • Oct18.24
  • Nov19.47
  • Dec21.1
  • Yea17.55
City County Donegal
  • Jan21.5
  • Feb21.01
  • Mar19.46
  • Apr16.31
  • May15.95
  • Jun13.93
  • Jul13.43
  • Aug14.85
  • Sep16.06
  • Oct17.21
  • Nov17.91
  • Dec21.06
  • Yea17.39

Average Wind Speed ( mph )

Average Length of Day ( Hours )

Average Length of Day ( Hours )

City Belfast
  • Jan5.21
  • Feb5.72
  • Mar8.4
  • Apr11.55
  • May12.24
  • Jun14.16
  • Jul12.71
  • Aug11.63
  • Sep9.95
  • Oct5.94
  • Nov5.69
  • Dec5.2
  • Yea9.03
City County Donegal
  • Jan4.97
  • Feb5.88
  • Mar8.03
  • Apr11.36
  • May12.02
  • Jun14.77
  • Jul13.09
  • Aug11.19
  • Sep9.18
  • Oct6.18
  • Nov5.36
  • Dec4.95
  • Yea8.92

Humidity (%)

Humidity (%)

City Belfast
  • Jan87.52
  • Feb86.05
  • Mar84.01
  • Apr82.76
  • May82.71
  • Jun85.12
  • Jul86.63
  • Aug87.13
  • Sep86.74
  • Oct86.69
  • Nov86.65
  • Dec87.79
  • Yea85.82
City County Donegal
  • Jan87.35
  • Feb85.48
  • Mar83.12
  • Apr81.71
  • May83.41
  • Jun85.75
  • Jul87.13
  • Aug87.07
  • Sep87.15
  • Oct86.82
  • Nov87.17
  • Dec86.61
  • Yea85.73

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