When is the best time to go to Belfast
The chart above shows the best time of year to visit Belfast, United States. These are based on an analysis of weather averages such as temperature, rainfall and number of hours of sunshine. These ratings are based solely on the climate and do not take into account other factors such as accommodation prices and how busy it is likely to be.
Average temperatures in Belfast
Belfast weather by month
Please note our recommendations for when to visit Belfast are based solely on the weather and do not take into accounts accommodation prices, how busy it will be and what events are on.
January
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| -2°C | 91mm | 4.3hrs | 10.4hrs | 5°C |
January is a a little damp month in Belfast and the temperature is generally cold.
Based on weather alone, this is probably a time of year to avoid going to Belfast for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.
January is in the winter in Belfast and is typically the coldest month of the year. Daytime maximum temperatures average around a freezing -2°C (28°F), whilst at night -13°C (9°F) is normal.
On average January is the driest month of the year in Belfast with around 91mm 3.6 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.
On the flip side this corresponds to an average of 4.3 hours of sunshine per day.
February
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| -1°C | 78mm | 5.2hrs | 11.5hrs | 4°C |
February in Belfast is generally reasonably dry with the temperature being cold.
Based on weather alone, this is probably a time of year to avoid going to Belfast for your holidays. The weather is often not a good and not conducive to spending time outdoors.
February is in the winter in Belfast and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a freezing -1°C (31°F), whilst at night -11°C (12°F) is normal.
On average February is the 2nd driest month of the year in Belfast with around 78mm 3.1 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.2 hours of sunshine per day.
March
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 4°C | 95mm | 5.9hrs | 12.8hrs | 4°C |
The weather in March in Belfast is characteristically cold and a little damp.
Based on weather alone, this is probably a time of year to avoid going to Belfast for your holidays. The weather is often not a good and not conducive to spending time outdoors.
March is in the spring in Belfast and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a freezing 4°C (40°F), whilst at night -5°C (22°F) is normal.
On average March is the 3rd driest month of the year in Belfast with around 95mm 3.7 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.9 hours of sunshine per day.
April
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 10°C | 95mm | 6.6hrs | 14.4hrs | 5°C |
Belfast's weather in April is typically cool and a little damp in nature.
Although outside the main holiday season, there is still plenty of relatively acceptable weather around this time of year. This makes it an okay time to visit Belfast.
April is in the spring in Belfast and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a cool 11°C (52°F), whilst at night 1°C (33°F) is normal.
On average April is the 4th driest month of the year in Belfast with around 95mm 3.7 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.6 hours of sunshine per day.
May
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 16°C | 95mm | 7.6hrs | 15.8hrs | 8°C |
May is a a little damp month in Belfast and the temperature is generally mild.
Although outside the main holiday season, there is still plenty of reasonably acceptable weather around this time of year. This makes it a good time to visit Belfast.
May is in the spring in Belfast and is typically the 5th coldest month of the year. Daytime maximum temperatures average around a cool 18°C (64°F), whilst at night 6°C (43°F) is normal.
On average May is the 5th driest month of the year in Belfast with around 95mm 3.7 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.6 hours of sunshine per day.
June
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 20°C | 90mm | 8.2hrs | 10.4hrs | 12°C |
Belfast's weather in June is typically mild and a little damp in nature.
It is perhaps the perfect month to visit Belfast, with some particularly good weather at this time of year.
June is in the summer in Belfast and is typically the 6th coldest month of the year. Daytime maximum temperatures average around 23°C (73°F), whilst at night 11°C (52°F) is normal.
On average June is the 6th driest month of the year in Belfast with around 90mm 3.6 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.2 hours of sunshine per day.
July
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 23°C | 83mm | 8.5hrs | 11.5hrs | 15°C |
July in Belfast is generally a little damp with the temperature being warm.
It is perhaps the perfect month to visit Belfast, with some extremely good weather at this time of year.
July is in the summer in Belfast and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a muggy 26°C (78°F), whilst at night 15°C (58°F) is normal.
On average July is the 6th wettest month of the year in Belfast with around 83mm 3.3 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.5 hours of sunshine per day.
August
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 22°C | 83mm | 8.2hrs | 12.8hrs | 16°C |
The weather in August in Belfast is characteristically warm and a little damp.
It is perhaps the perfect month to visit Belfast, with some surprisingly good weather at this time of year.
August is in the summer in Belfast and is typically the 5th warmest month of the year. Daytime maximum temperatures average around 25°C (77°F), whilst at night 14°C (57°F) is normal.
On average August is the 5th wettest month of the year in Belfast with around 83mm 3.3 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.2 hours of sunshine per day.
September
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 18°C | 91mm | 7hrs | 14.4hrs | 14°C |
Belfast's weather in September is typically mild and a little damp in nature.
It is perhaps a good month to visit Belfast, with some very good weather at this time of year.
September is in the fall / autumn in Belfast and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 20°C (68°F), whilst at night 9°C (49°F) is normal.
On average September is the 4th wettest month of the year in Belfast with around 91mm 3.6 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.
On the flip side this corresponds to an average of 7 hours of sunshine per day.
Belfast weather in September »
October
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 13°C | 97mm | 5.7hrs | 15.8hrs | 11°C |
October is a a little damp month in Belfast and the temperature is generally cool.
Although outside the main holiday season, there is still plenty of pretty acceptable weather around this time of year. This makes it an okay time to visit Belfast.
October is in the fall / autumn in Belfast and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a cool 14°C (58°F), whilst at night 4°C (39°F) is normal.
On average October is the 3rd wettest month of the year in Belfast with around 97mm 3.8 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.7 hours of sunshine per day.
November
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 7°C | 116mm | 4hrs | 10.4hrs | 9°C |
Belfast's weather in November is typically cool and damp in nature.
Based on weather alone, this is probably a time of year to avoid going to Belfast for your holidays. The weather is often not a good and not conducive to spending time outdoors.
November is in the fall / autumn in Belfast and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a cold 8°C (46°F), whilst at night -1°C (30°F) is normal.
On average November is the 2nd wettest month of the year in Belfast with around 116mm 4.6 inches of rain making it a damp time to visit. This rainfall is typically spread over 13 days, although this may vary considerably.
On the flip side this corresponds to an average of 4 hours of sunshine per day.
December
| Temp | Rain | Sunshine | Day length | Sea temp |
|---|---|---|---|---|
| 0°C | 110mm | 3.7hrs | 11.5hrs | 7°C |
December in Belfast is generally damp with the temperature being cold.
Based on weather alone, this is probably a time of year to avoid going to Belfast for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.
December is in the winter in Belfast and is typically the warmest month of the year. Daytime maximum temperatures average around a freezing 0°C (33°F), whilst at night -9°C (15°F) is normal.
On average December is the wettest month of the year in Belfast with around 110mm 4.3 inches of rain making it a damp time to visit. This rainfall is typically spread over 13 days, although this may vary considerably.
On the flip side this corresponds to an average of 3.7 hours of sunshine per day.
Other monthly averages
Belfast weather stats
| Hottest month: | July | 25.5°C 77.9°F |
|---|---|---|
| Driest month: | February | 78mm 3.1ins |
| Sunniest month: | August | 8.2hrs |
| Coldest month: | January | -2.3°C 27.9°F |
| Wettest month: | November | 116mm 4.6ins |
| Warmest sea: | August | 15.8°C 60.4°F |
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