Belfast Weather in August
Belfast in August averages 30°C (86°F) during the day and 26°C (79°F) at night. Keep in mind that quite a bit of rainfall is expected this month.
Rainfall in Belfast in August
Past climate data indicates that roughly 12 days will see rain, totalling around 128 mm (5 in) for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.
Temperature in Belfast in August
In August, Belfast gets high temperatures, with highs of 30°C (86°F). Nights cool to around 26°C (79°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. At 26°C (79°F) overnight, the heat doesn't let up much after dark. If you're staying somewhere without air conditioning, a cold shower before bed and keeping the air moving can help.
Sunshine in Belfast in August
Expect a lot of sunshine this month, with about 263 hours of sun. These sunny conditions add to the overall experience.If you prefer dry days with pleasant temperatures, August may not be the ideal month to visit Belfast. Our weather planner can help you explore destinations with more pleasant weather conditions.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Jamaica, check out our Belfast's climate page.
Belfast Temperature in August
Min Temperature
26°C (79°F)
Max Temperature
30°C (86°F)
Chance of Rain
41%
Precipitation
128 mm (5 in)
Rainy days
12 days
Humidity
76% *
Sunshine
263 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Belfast typically stay consistent throughout August, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 27°C (81°F).
Average temperatures in August
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 August
Historical weather for Belfast in August
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.
Belfast historical weather extremes in August
According to our 21 years of weather records for Belfast, the following extremes were recorded between 2004 and 2025.
- The warmest day in August was on August 5, 2004, with a maximum of 37°C (99°F).
- The coldest August day was on August 11, 2007, with a maximum of 27°C (81°F).
- Belfast registered its coldest August night on August 13, 2013, with temperatures dropping to 22°C (72°F).
Best Places in Jamaica in August
Find out more about the weather in Jamaica and which places have the best travel conditions in this month. See all of Jamaica in August →
perfect weather
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tolerable
unpleasant
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What to Wear in Belfast in August
Warm temperatures in August make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Prepare for significant rainfall with proper waterproof clothing and shoes. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Belfast in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Jamaica, check out our Belfast's climate page.
Temperature Rainfall Sunshine Humidity
See the full Belfast climate overview or explore weather in Jamaica.
