July weather forecast and climate
Belfast, United Kingdom

A close-up view of the Northern Ireland City Hall located in Belfast, United Kingdom
A close-up view of the Northern Ireland City Hall located in Belfast, United Kingdom

What is the warmest month in Belfast?

July is the warmest month in Belfast, with an average high-temperature of 18.8°C (65.8°F) and an average low-temperature of 11.7°C (53.1°F).

What is the temperature in July in Belfast?

In Belfast, in July, the average high-temperature is 18.8°C (65.8°F), and the average low-temperature is 11.7°C (53.1°F).

How much does it rain in Belfast in July?

In Belfast, in July, during 12.9 rainfall days, typically, 71.4mm (2.8") of precipitation is accumulated.

What is the water temperature in July in Belfast?

In July, in Belfast, the average sea temperature is 13.6°C (56.5°F). Swimming in 13.6°C (56.5°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.
Average temperature in July - Belfast, United Kingdom
  • Average high temperature in July: 18.8°C

The warmest month (with the highest average high temperature) is July (18.8°C).
The month with the lowest average high temperature is January (7.1°C).

  • Average low temperature in July: 11.7°C

The month with the highest average low temperature is July (11.7°C).
The coldest month (with the lowest average low temperature) is February (1.6°C).

Average rainfall in July - Belfast, United Kingdom
  • Average rainfall in July: 71.4mm

The wettest month (with the highest rainfall) is October (89.6mm).
The driest month (with the lowest rainfall) is May (57.3mm).

Average rainfall days in July - Belfast, United Kingdom
  • Average rainfall days in July: 12.9 days

The month with the highest number of rainy days is January (14.8 days).
The month with the lowest number of rainy days is June (11.3 days).

Average sea temperature in July - Belfast, United Kingdom
  • Average sea temperature in July: 13.6°C

The best month for swimming (with the highest average sea temperature) is September (14.3°C).
The coldest month (with the lowest average sea temperature) is March (8°C).

Average daylight in July / Average sunshine in July - Belfast, United Kingdom
  • Average daylight in July: 16.6h

The month with the longest days is June (Average daylight: 17.2h).
The month with shortest days is December (Average daylight: 7.4h).

  • Average sunshine in July: 4.9h

The month with most sunshine is May (Average sunshine: 6.4h).
The month with least sunshine is December (Average sunshine: 1.5h).

Average UV index in July - Belfast, United Kingdom
  • Average UV index in July: 6

Months with the highest UV index are June and July (UV index 6).
Months with the lowest UV index are January and December (UV index 0).

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