Belfast Weather in October
October in Belfast typically sees daytime highs of 14°C (57°F) and nighttime lows of 9°C (48°F). As the wettest month of the year, expect more rainfall than other months.
Rainfall in Belfast in October
Since this is the rainiest month of the year, it's a good idea to carry an umbrella just in case. Based on our climate data of the past 30 years, about 19 days of rain are anticipated, with 100 mm (3.9 in) on average. 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 October
Expect highs of 14°C (57°F) in Belfast in October, with nights dropping to around 9°C (48°F). The difference between afternoon and evening temperatures is usually noticeable. At 9°C (48°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.
Sunshine in Belfast in October
With limited sunshine this month, there are about 85 hours of sun. It's ideal for those who prefer a cooler, cloudier climate.
Wind Speed in Belfast in October
Average wind conditions reach 5 m/s (10 knots) in October. This creates lively weather with fresh winds that make small trees sway noticeably. Remember this is an average: some days are less windy while others have particularly active windy conditions.
Average water temperature in October
The water temperature is 13°C (55°F) — chilly, but perfectly fine for a swim if you're not too sensitive to cold water. A short wetsuit can make longer sessions more comfortable.If you prefer dry days with pleasant temperatures, July and August typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
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 October
Min Temperature
9°C (48°F)
Max Temperature
14°C (57°F)
Water Temperature
13°C (55°F) *
Chance of Rain
64%
Precipitation
100 mm (3.9 in)
Rainy days
19 days
Humidity
91% *
Windspeed
5 m/s (10 knots) *
Sunshine
85 hours *
Percentage Sunshine
25% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Belfast typically stay consistent throughout October, with daily highs averaging around 14°C (57°F). Nights are cold, with lows typically ranging from 6°C (43°F) to 9°C (48°F).
Average temperatures in October
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 October
Historical weather for Belfast in October
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 October
The extremes listed below come from historical weather data collected in Belfast from 1976 through 2025.
- Belfast recorded its highest October temperature of 22°C (72°F) on October 8, 1995.
- Belfast experienced its chilliest October day on October 28, 2008, reaching only 4°C (39°F).
- Belfast registered its coldest October night on October 17, 1993, with temperatures dropping to -2°C (28°F).
- The heaviest October precipitation occurred on October 6, 2014, when 27 mm (1.1 in) of precipitation fell.
Best Places in the United Kingdom in October
Find out more about the weather in the United Kingdom and which places have the best travel conditions in this month. See all of the United Kingdom in October →
perfect weather
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What to Wear in Belfast in October
Pack for changing conditions in Belfast in October. Bring a mix of short and long sleeves, a warm layer like a hoodie or light jacket, and comfortable pants. The key is being able to add or remove layers as the days goes by. Prepare for significant rainfall with proper waterproof clothing and shoes. Expect water temperatures of around 13°C (55°F), which is definitely too cold for comfortable swimming. Your luggage space is better used for other items. Sunglasses aren't essential this month, though you might want them for the occasional bright moment.What To Do in Belfast in October
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 the United Kingdom, check out our Belfast's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Belfast climate overview or explore weather in the United Kingdom.
