Belfast, United Kingdom 14-Day Forecast
65°
Patchy rain nearby right now
Today: high 65°, low 49°
Updated 2 hours ago
Belfast weather for the next 14 days
Sunday, August 16
Patchy rain nearby High 58° Low 48°Precipitation
80%
· 0.12 in
Max wind
7 mph
Humidity
89%
UV index
1 - Low
Sunrise / sunset
06:01 AM / 08:54 PM
Monday, August 17
Fog High 62° Low 53°Precipitation
94%
· 0.61 in
Max wind
12 mph
Humidity
96%
UV index
2 - Low
Sunrise / sunset
06:03 AM / 08:51 PM
Tuesday, August 18
Patchy rain nearby High 64° Low 55°Precipitation
57%
· 0.03 in
Max wind
21 mph
Humidity
82%
UV index
4 - Moderate
Sunrise / sunset
06:05 AM / 08:49 PM
Wednesday, August 19
Patchy rain nearby High 61° Low 48°Precipitation
54%
· 0.03 in
Max wind
17 mph
Humidity
81%
UV index
5 - Moderate
Sunrise / sunset
06:07 AM / 08:47 PM
Thursday, August 20
Fog High 59° Low 44°Precipitation
79%
· 0.15 in
Max wind
6 mph
Humidity
86%
UV index
4 - Moderate
Sunrise / sunset
06:09 AM / 08:45 PM
Friday, August 21
Mist High 58° Low 42°Precipitation
71%
· 0.08 in
Max wind
12 mph
Humidity
85%
UV index
3 - Moderate
Sunrise / sunset
06:11 AM / 08:42 PM
Saturday, August 22
Patchy rain nearby High 61° Low 43°Precipitation
63%
· 0.05 in
Max wind
11 mph
Humidity
84%
UV index
4 - Moderate
Sunrise / sunset
06:12 AM / 08:40 PM
Sunday, August 23
Mist High 62° Low 42°Precipitation
16%
· 0.0 in
Max wind
7 mph
Humidity
83%
UV index
5 - Moderate
Sunrise / sunset
06:14 AM / 08:38 PM
Monday, August 24
Sunny High 62° Low 44°Precipitation
8%
· 0.0 in
Max wind
9 mph
Humidity
76%
UV index
5 - Moderate
Sunrise / sunset
06:16 AM / 08:35 PM
Tuesday, August 25
Sunny High 61° Low 45°Precipitation
10%
· 0.0 in
Max wind
10 mph
Humidity
76%
UV index
5 - Moderate
Sunrise / sunset
06:18 AM / 08:33 PM
Wednesday, August 26
Partly Cloudy High 58° Low 42°Precipitation
11%
· 0.0 in
Max wind
10 mph
Humidity
73%
UV index
4 - Moderate
Sunrise / sunset
06:20 AM / 08:30 PM
Thursday, August 27
Partly Cloudy High 58° Low 43°Precipitation
57%
· 0.05 in
Max wind
7 mph
Humidity
72%
UV index
4 - Moderate
Sunrise / sunset
06:22 AM / 08:28 PM
Friday, August 28
Partly Cloudy High 62° Low 48°Precipitation
12%
· 0.0 in
Max wind
12 mph
Humidity
76%
UV index
5 - Moderate
Sunrise / sunset
06:23 AM / 08:26 PM
Belfast 14-day outlook: the story
The warmest day of Belfast's 14-day outlook is Saturday, August 15 with a high near 65°F (18°C); the coolest night comes Wednesday, August 26, dipping to 42°F (5°C). Temperatures hold fairly steady from week to week. Highs over the next two weeks average 61°F (16°C), about 3°F (2°C) below the typical August high of 64°F (18°C).
Precipitation is most likely on Sunday 16, Monday 17, Tuesday 18, Wednesday 19 and beyond; the wettest day looks like Monday, August 17 with about 0.61 in (15.6 mm) expected. For the weekend, expect Saturday 65°F (18°C) and partly cloudy / Sunday 58°F (15°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 8 of the next 14 days, peaking around Monday, August 17.
What will be the warmest day in Belfast over the next 14 days?
Saturday, August 15, with a forecast high near 65°F (18°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