Belfast Weather in July

With daytime temperatures of 19°C (66°F) and nighttime lows of 12°C (54°F), July in Belfast brings pleasant temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 93 mm (3.7 in) falls on average.

Rainfall in Belfast in July

On average, there are about 15 days with rain during this month, averaging 93 mm (3.7 in). Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.

Temperature in Belfast in July

In July, Belfast sees pleasant temperatures, with highs of 19°C (66°F). Nights drop to around 12°C (54°F). The summer season is characteristic of July. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. At 12°C (54°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping. On average, it sees the highest temps of the year.

Sunshine in Belfast in July

The city usually sees around 148 hours of sunlight, indicating a moderately sunny period.

Wind Speed in Belfast in July

July sees wind speeds averaging 4 m/s (8 knots). You'll experience variable conditions with moderate winds that create small waves on water and keep branches moving. Conditions range from light winds to moderate breezes throughout the month.

Average water temperature in July

At 12°C (54°F), the water is very cold. Most people find it too uncomfortable for anything beyond a brief wade.

If you favor pleasant temperatures and minimal rainfall, July is one of the best months to visit Belfast.

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For a detailed overview over the year and the best time to visit the United Kingdom, check out our Belfast's climate page.

Belfast Temperature in July

Min Temperature 12°C (54°F)  

Max Temperature 19°C (66°F)  

Water Temperature 12°C (54°F) *  

Chance of Rain 51%  

Precipitation 93 mm (3.7 in)  

Rainy days 15 days  

Humidity 89% *  

Windspeed 4 m/s (8 knots) *  

Sunshine 148 hours *  

Percentage Sunshine 26% *  

* Data from: Belfast, Ireland (19 KM, 12 Miles).

Daily Historical Temperatures

50-year average (1976-2025)

Based on our historical records, temperatures in Belfast typically stay consistent throughout July, with daily highs averaging around 19°C (66°F). Nights are cool, with lows around 12°C (54°F).

Average temperatures in July

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Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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Daily Historical Precipitation

50-year average (1976-2025)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in July

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Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

‹ January February March April May June July August September October November December ›

Historical weather for Belfast in July

Browse day-by-day weather records for Belfast spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Historical weather Temperatures Precipitation

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‹ January February March April May June July August September October November December ›

Belfast historical weather extremes in July

Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Belfast.

• Belfast recorded its highest July temperature of 29°C (84°F) on July 18, 2022.
• Belfast experienced its chilliest July day on July 4, 1978, reaching only 11°C (52°F).
• The lowest overnight temperature recorded in July was 4°C (39°F) (July 3, 1990).

What to Wear in Belfast in July

Comfortable temperatures call for an easy wardrobe in July. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags. The water temperature sits at about 12°C (54°F), which is too chilly for most people to enjoy swimming. Leave the swimsuit at home unless you love cold water. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Belfast in July

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

6/10

Cycling

9/10

Walking

9/10

Camping

8/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United Kingdom, check out our Belfast's climate page.

More climate data for Belfast

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Belfast climate overview or explore weather in the United Kingdom.