🇬🇧 Weather in Belfast
Map Overlays:
Hourly Forecast for Belfast
08:00
11°
18%
09:00
13°
16%
10:00
15°
15%
11:00
16°
12%
12:00
17°
12%
13:00
18°
10%
14:00
18°
13%
15:00
17°
13%
16:00
17°
14%
17:00
16°
15%
18:00
16°
9%
19:00
15°
5%
20:00
13°
13%
21:00
11°
28%
22:00
10°
29%
23:00
10°
26%
00:00
10°
10%
01:00
9°
10%
02:00
10°
18%
03:00
9°
17%
04:00
9°
13%
05:00
9°
13%
06:00
9°
13%
07:00
9°
13%
14-Day Forecast for Belfast
2026-08-23
Patchy rain nearby
18° /
8°
2026-08-24
Sunny
19° /
9°
2026-08-25
Overcast
19° /
13°
2026-08-26
Overcast
18° /
13°
2026-08-27
Light rain shower
15° /
13°
2026-08-28
Fog
15° /
12°
2026-08-29
Patchy rain nearby
15° /
12°
Additional Forecasts for Belfast
Air Quality
💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 172.0 μg/m³
O₃ (Ozone) 31.0 μg/m³
NO₂ (Nitrogen Dioxide) 6.3 μg/m³
SO₂ (Sulphur Dioxide) 0.3 μg/m³
PM2.5 (Fine particles) 7.5 μg/m³
PM10 (Coarse particles) 11.3 μg/m³
Historical Weather
Weather Forecasts for Other Cities in United Kingdom
Weather in Belfast — FAQ
Answers refreshed each request based on current conditions in Belfast.
What is the weather like right now in Belfast?
Right now in Belfast, United Kingdom the temperature is 8.8°C (feels like 8.1°C), with partly cloudy. Relative humidity is 91% and wind is 6.1 km/h.
What is today's high and low temperature in Belfast?
Today's forecast high in Belfast is 17.5°C and the overnight low is 7.5°C. The diurnal range — high minus low — depends on cloud cover; clear days swing more than overcast ones.
Will it rain in Belfast today?
The chance of precipitation in Belfast today is 20%. Forecast accuracy is highest within the next 6 hours and decreases steadily out to 14 days.
How often does the weather here update?
Current observations refresh every 15-60 minutes from the nearest monitoring stations operated by national meteorological agencies. The hourly forecast updates approximately every hour; the 7- and 14-day outlook is recomputed several times per day.
What does 'feels like' temperature mean?
Feels-like (apparent) temperature accounts for humidity, wind chill and direct sunshine — variables that change how the human body perceives heat or cold. On hot, humid days it can be 3-7°C above the actual reading; on cold windy days it can be 5-15°C below.
Why does the temperature in Belfast differ from nearby cities?
Even short distances can change temperatures noticeably. Belfast's reading reflects altitude, proximity to large bodies of water, urban heat island effects, and the exact location of the monitoring stations supplying the data. Coastal cities are typically milder and more humid than inland equivalents.