Belfast, United Kingdom 14-Day Forecast
58°
Partly Cloudy right now
Today: high 66°, low 56°
Updated 1 hour ago
Belfast weather for the next 14 days
Thursday, August 27
Overcast High 69° Low 56°Precipitation
75%
· 0.1 in
Max wind
14 mph
Humidity
85%
UV index
2 - Low
Sunrise / sunset
06:22 AM / 08:28 PM
Friday, August 28
Light rain shower High 69° Low 55°Precipitation
80%
· 0.17 in
Max wind
15 mph
Humidity
85%
UV index
6 - High
Sunrise / sunset
06:23 AM / 08:26 PM
Saturday, August 29
Light rain shower High 60° Low 52°Precipitation
86%
· 0.12 in
Max wind
9 mph
Humidity
92%
UV index
4 - Moderate
Sunrise / sunset
06:25 AM / 08:23 PM
Sunday, August 30
Patchy rain nearby High 64° Low 46°Precipitation
81%
· 0.17 in
Max wind
9 mph
Humidity
88%
UV index
4 - Moderate
Sunrise / sunset
06:27 AM / 08:21 PM
Monday, August 31
Patchy rain nearby High 58° Low 52°Precipitation
69%
· 0.03 in
Max wind
13 mph
Humidity
90%
UV index
3 - Moderate
Sunrise / sunset
06:29 AM / 08:18 PM
Tuesday, September 1
Sunny High 58° Low 46°Precipitation
24%
· 0.01 in
Max wind
15 mph
Humidity
81%
UV index
4 - Moderate
Sunrise / sunset
06:31 AM / 08:16 PM
Wednesday, September 2
Overcast High 62° Low 42°Precipitation
18%
· 0.0 in
Max wind
8 mph
Humidity
79%
UV index
4 - Moderate
Sunrise / sunset
06:33 AM / 08:13 PM
Thursday, September 3
Patchy rain nearby High 64° Low 53°Precipitation
84%
· 0.34 in
Max wind
17 mph
Humidity
84%
UV index
4 - Moderate
Sunrise / sunset
06:34 AM / 08:11 PM
Friday, September 4
Mist High 60° Low 51°Precipitation
77%
· 0.05 in
Max wind
9 mph
Humidity
93%
UV index
3 - Moderate
Sunrise / sunset
06:36 AM / 08:08 PM
Saturday, September 5
Overcast High 74° Low 58°Precipitation
21%
· 0.0 in
Max wind
10 mph
Humidity
87%
UV index
6 - High
Sunrise / sunset
06:38 AM / 08:06 PM
Sunday, September 6
Overcast High 74° Low 61°Precipitation
46%
· 0.02 in
Max wind
11 mph
Humidity
83%
UV index
6 - High
Sunrise / sunset
06:40 AM / 08:03 PM
Monday, September 7
Light rain shower High 64° Low 55°Precipitation
93%
· 1.1 in
Max wind
10 mph
Humidity
94%
UV index
4 - Moderate
Sunrise / sunset
06:42 AM / 08:01 PM
Tuesday, September 8
Overcast High 60° Low 48°Precipitation
87%
· 0.28 in
Max wind
16 mph
Humidity
85%
UV index
4 - Moderate
Sunrise / sunset
06:44 AM / 07:58 PM
Belfast 14-day outlook: the story
The warmest day of Belfast's 14-day outlook is Sunday, September 6 with a high near 74°F (24°C); the coolest night comes Wednesday, September 2, dipping to 42°F (6°C). Temperatures hold fairly steady from week to week. Highs over the next two weeks average 63°F (17°C), right in line with the typical August high of 64°F (18°C).
Precipitation is most likely on Wednesday 26, Thursday 27, Friday 28, Saturday 29 and beyond; the wettest day looks like Monday, September 7 with about 1.1 in (28.0 mm) expected. For the weekend, expect Saturday 60°F (16°C) and light rain shower / Sunday 64°F (18°C) and patchy rain nearby.
For typical conditions month by month, see the Belfast climate & average temperatures guide.
Belfast forecast questions
Will it rain in Belfast this week?
The forecast currently shows meaningful precipitation chances on 10 of the next 14 days, peaking around Monday, September 7.
What will be the warmest day in Belfast over the next 14 days?
Sunday, September 6, with a forecast high near 74°F (24°C).
How accurate is a 14-day forecast for Belfast?
Days 1-3 are highly reliable, days 4-7 capture the overall pattern well, and days 8-14 indicate trends rather than exact figures - check back as the date approaches; this page refreshes throughout the day.
Average temperatures in Belfast by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 45° | 37° | 14 | 2.7 in | 3.8 h/day | 86% |
| February | 47° | 38° | 14 | 3.1 in | 5.4 h/day | 83% |
| March | 49° | 38° | 16 | 3.2 in | 6.8 h/day | 82% |
| April | 52° | 41° | 13 | 2.4 in | 9.0 h/day | 79% |
| May | 58° | 46° | 14 | 2.8 in | 10.5 h/day | 78% |
| June | 63° | 51° | 14 | 3.2 in | 10.9 h/day | 78% |
| July | 65° | 53° | 18 | 3.9 in | 9.8 h/day | 80% |
| August | 64° | 54° | 18 | 4.1 in | 9.3 h/day | 82% |
| September | 61° | 51° | 14 | 3.4 in | 7.7 h/day | 83% |
| October | 56° | 47° | 14 | 3.5 in | 5.7 h/day | 84% |
| November | 50° | 42° | 14 | 3.5 in | 4.1 h/day | 86% |
| December | 47° | 40° | 15 | 3.9 in | 2.9 h/day | 88% |
14-day forecasts nearby