Weather in Belfast

14-day forecast · updated today, Wednesday, October 28, at 6:57 pm (EDT)

Now · clear 41 °F

Feels like: 34 °F
Low / high: 27 / 51 °F
Rain: 2%
Wind: 5 mph SSW

→ 30.36 inHg · steady

Today in Belfast: partly cloudy, 27 °F to 51 °F, with a 2% chance of rain and a light breeze from the south-southwest (5 mph). Tomorrow, mainly clear, 38 °F to 63 °F and a 9% chance of rain. The warmest day of the week is Thursday 29, at 63 °F. Next likely rain: Tuesday 3 (18%).

Temperatures for the next 14 days

51° 27°
Today
63° 38°
Thu 29
63° 45°
Fri 30
50° 33°
Sat 31
55° 30°
Sun 1
60° 38°
Mon 2
56° 39°
Tue 3
56° 39°
Wed 4
57° 41°
Thu 5
56° 45°
Fri 6
54° 41°
Sat 7
52° 36°
Sun 8
54° 35°
Mon 9
49° 33°
Tue 10

Day by day

Day	Sky	Low / high	Rain	Max wind	Max wave	High tides	Model
Today · 28	Partly cloudy	27 / 51 °F	2%	8 mph WSW	1.2 ft	12:32 am · 12:43 pm	HRRR
Thu 29	Mainly clear	38 / 63 °F	9%	9 mph SSW	2.6 ft	1:21 am · 1:34 pm	HRRR + NBM
Fri 30	Light drizzle	45 / 63 °F	19%	13 mph WNW	2.5 ft	2:14 am · 2:28 pm	NBM
Sat 31	Mainly clear	33 / 50 °F	0%	12 mph NW	1.8 ft	3:13 am · 3:29 pm	NBM
Sun 1	Partly cloudy	30 / 55 °F	0%	9 mph WSW	1.0 ft	3:16 am · 3:35 pm	NBM
Mon 2	Overcast	38 / 60 °F	6%	8 mph WSW	1.2 ft	4:24 am · 4:45 pm	NBM
Tue 3	Overcast	39 / 56 °F	18% · 0.06 in	7 mph NE	1.4 ft	5:31 am · 5:54 pm	NBM
Wed 4	Overcast	39 / 56 °F	18% · 0.03 in	7 mph SW	3.7 ft	6:34 am · 6:59 pm	NBM
Thu 5	Overcast	41 / 57 °F	21% · 0.03 in	10 mph SE	1.5 ft	7:31 am · 7:58 pm	NBM
Fri 6	Light drizzle	45 / 56 °F	38% · 0.49 in	12 mph SSE	2.2 ft	8:22 am · 8:50 pm	NBM
Sat 7	Light rain	41 / 54 °F	29% · 0.24 in	11 mph NW	2.6 ft	9:08 am · 9:38 pm	NBM
Sun 8	Heavy drizzle	36 / 52 °F	25% · 0.11 in	13 mph NW	2.3 ft	9:50 am · 10:22 pm	NBM + ECMWF
Mon 9	Clear sky	35 / 54 °F	21%	8 mph NW	1.0 ft	10:30 am · 11:03 pm	ECMWF
Tue 10	Mainly clear	33 / 49 °F	24%	6 mph NW	0.9 ft	11:08 am · 11:43 pm	ECMWF

Each hour comes from the best model for this spot: HRRR until Thursday 29 1:00 pm; then NBM until Sunday 8 2:00 pm; then ECMWF until Thursday 12 10:00 am; then GFS.

Each day comes from the best model covering this spot: regional ones first (HRRR and NBM in the U.S., AROME, ICON-EU), then ECMWF; day 16, NOAA GFS. Waves: Météo-France up to day 10, then ECMWF WAM, coarser and further offshore. High tides: our own tide calculation.

Today, every 3 hours

Time	12:00 am	3:00 am	6:00 am	9:00 am	12:00 pm	3:00 pm	6:00 pm	9:00 pm
Sky	Clear	Clear	Clear	Mainly clear	Partly cloudy	Mainly clear	Mainly clear	Clear
Temperature	33°	30°	27°	34°	47°	51°	44°	38°
Chance of rain	0%	0%	0%	0%	0%	0%	1%	1%
Rain	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in
Wind (mph)	6 NNW	4 N	1 N	2 SSW	5 SW	7 SW	5 SSW	2 WSW
Humidity	59%	60%	69%	78%	46%	33%	37%	63%
UV	0	0	0	1	3	1	0	0
Model	HRRR	HRRR	HRRR	HRRR	HRRR	HRRR	HRRR	HRRR

Do the models agree?

High confidence

The models agree for the next few days: the forecast is fairly solid.

What 6 forecast models say for the next few days. The closer they are, the more reliable the forecast.

HighRainWind

Do the models agree? · High
High (°F)	Today	Thu 29	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3
ECMWF	49°	62°	62°	48°	52°	62°	58°
AIFS	48°	62°	62°	47°	52°	61°	67°
GFS	50°	63°	62°	48°	55°	57°	50°
ICON	50°	65°	62°	48°	56°	66°	59°
HRRR	51°	65°	—	—	—	—	—
NBM	51°	63°	63°	50°	55°	60°	56°
Confidence	high	high	high	high	high	high	medium

Do the models agree? · Rain
Rain	Today	Thu 29	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3
ECMWF	0	0	0.02 in	0	0	0	0
AIFS	0	0.01 in	0.04 in	0	0	0	0
GFS	0	0	0.01 in	0	0	0	0
ICON	0	0	0.03 in	0	0	0	0
HRRR	0	0	—	—	—	—	—
NBM	0	0	0	0	0	0	0.05 in
Confidence	high	high	high	high	high	high	high

Do the models agree? · Wind
Wind (mph)	Today	Thu 29	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3
ECMWF	815	1123	1227	1127	1119	1023	921
AIFS	8	12	13	13	8	8	10
GFS	620	1032	1532	1630	812	614	1018
ICON	717	920	1330	1534	920	1023	1228
HRRR	816	1124	—	—	—	—	—
NBM	613	923	1326	1224	916	816	713
Confidence	high	high	high	high	high	high	high

Chance of rain from the ensemble models

Model	Today	Thu 29	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3
ECMWF (51 scenarios)	0%	0%	69%	0%	0%	5%	13%
GFS (GEFS, 31 scenarios)	0%	0%	27%	0%	0%	26%	26%
NBM (NOAA)	2%	9%	19%	0%	0%	6%	18%
Thunderstorm (NBM)	0%	0%	1%	0%	0%	0%	0%

Each model's day runs midnight to midnight local time; models that reach fewer days are left blank. Rain: daily total. Wind: the day's highest average wind and, in small type, the strongest gust. Highlighted: values that stand out from the rest. The chance of rain comes from many runs of the same model with slightly different starting data.

Outlook

How the coming weeks and months compare with what is normal for the time of year. It is a trend, not a day-by-day forecast.

Next few weeks, compared with normal: a bit warmer and normal rain.

Next 6 weeks

When	TemperatureTemp.	Rain	Typical high / low
Nov 2 – Nov 8Nov 2–Nov 8	Above +4.0 °F	Normal	—
Nov 9 – Nov 15Nov 9–Nov 15	A bit above +1.1 °F	Normal	47° / 37°
Nov 16 – Nov 22Nov 16–Nov 22	A bit above +2.2 °F	A bit below −24%	46° / 37°
Nov 23 – Nov 29Nov 23–Nov 29	Above +2.7 °F	A bit above +28%	43° / 36°
Nov 30 – Dec 6Nov 30–Dec 6	A bit above +2.5 °F	A bit above +23%	40° / 33°

Coming months

When	TemperatureTemp.	Rain
November	A bit above +1.4 °F	Normal
December	Above +4.3 °F	A bit above +22%
January	Well above +5.8 °F	A bit above +37%
February	Above +4.3 °F	Normal
March	Above +4.1 °F	Normal

Weeks: ECMWF 46-day (average of its scenarios), against the normal of the last 20 years for those dates. Months: ECMWF SEAS5. Rain: total against normal. The further ahead, the closer it gets to normal and the less detail it can give. The long-range sea temperature isn't usable at this spot (the model's grid cell falls on land).

Belfast climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit Belfast is from June to September: highs of 70 °F to 80 °F, about 9 rainy days a month and 7 hours of sunshine a day.

Tropical cyclones rarely pass near Belfast: one within 93 mi in the last 30 years (1996–2025), Bertha, in July 1996.

30° 12°

JanJ
33° 13°

FebF
41° 22°

MarM
53° 33°

AprA
65° 43°

MayM
74° 52°

JunJ
80° 58°

JulJ
78° 57°

AugA
70° 49°

SepS
58° 39°

OctO
46° 30°

NovN
36° 20°

DecD

Highs and lows
Monthly rainfall
Best time

Month	High	Low	Rain	Rainy daysDays	Sun (h/day)	Water	Waves
JanuaryJan	30°	12°	3.41 in	8	3.6	39°	2.8 ft
FebruaryFeb	33°	13°	3.40 in	7	4.9	35°	2.6 ft
MarchMar	41°	22°	3.86 in	9	5.9	35°	2.4 ft
AprilApr	53°	33°	4.62 in	9	6.4	40°	2.2 ft
MayMay	65°	43°	4.17 in	10	6.3	46°	1.7 ft
JuneJun	74°	52°	3.71 in	10	7.1	52°	1.6 ft
JulyJul	80°	58°	2.92 in	9	7.4	57°	1.4 ft
AugustAug	78°	57°	3.05 in	8	7.4	58°	1.4 ft
SeptemberSep	70°	49°	3.70 in	8	6.2	57°	1.6 ft
OctoberOct	58°	39°	5.42 in	9	4.1	54°	2.1 ft
NovemberNov	46°	30°	5.11 in	9	3.1	49°	2.5 ft
DecemberDec	36°	20°	5.33 in	10	2.7	44°	2.6 ft

Month	Water	Waves
Jan	39°	2.8 ft
Feb	35°	2.6 ft
Mar	35°	2.4 ft
Apr	40°	2.2 ft
May	46°	1.7 ft
Jun	52°	1.6 ft
Jul	57°	1.4 ft
Aug	58°	1.4 ft
Sep	57°	1.6 ft
Oct	54°	2.1 ft
Nov	49°	2.5 ft
Dec	44°	2.6 ft

Days: rainy days in the month. Sun: hours a day.

A normal year brings 48.71 in of rain on about 105 days and about 2,000 hours of sunshine.

1991–2020 averages. Highs, lows and rainfall: TerraClimate; rainy days (0.04 in or more): NASA POWER (MERRA-2); sunshine hours: estimated from solar radiation; water: NOAA OISST; waves (average height): ERA5, 2011–2020. Normals are not a forecast: any given year can turn out very different. Sources and licenses

Temperature

Now41 °Ffeels like 34 °F

Tomorrow38 / 63 °F

It's 41 °F now (feels like 34 °F). Today, 27 °F to 51 °F; tomorrow, 38 °F to 63 °F.

Chance of rain

Today 2%
Thu 29 9%
Fri 30 19%
Sat 31 0%
Sun 1 0%
Mon 2 6%
Tue 3 18% 0.06 in

Today the chance of rain reaches 2%. The next day with likely rain is Tuesday 3: 18% and 0.06 in.

No rain in the last 7 days.

Humidity and dew point

Humidity48%

Dew point22 °F

Humidity is 48% now and the dew point is 22 °F.

The dew point is the temperature at which the air becomes saturated: the higher it is, the heavier the air feels.

Visibility and fog

Now26 migood

Clouds14%

Visibility is good now (26 mi). No fog expected today.

The model gives visibility up to about 15 mi: beyond that, the horizon is clear.

UV index

Now0

Today's peak3low

Thu 29: 3 · Fri 30: 2 · Sat 31: 2

Index	Level	What to do
0–2	low	No special protection needed.
3–5	moderate	Hat, sunglasses and sunscreen around midday.
6–7	high	Sunscreen, hat and shade between 12 and 4 pm.
8–10	very high	Avoid the midday sun; reflection off the water adds to it.
11+	extreme	Avoid the sun between 11 am and 5 pm; protect yourself even if it is cloudy.

Reflection off water and sand adds radiation: protect yourself more on a boat or at the beach.

Barometric pressure

↗ Rising Anglers say fish bite less for a while
→ Steady · now Anglers expect normal activity
↘ Falling Anglers say fish feed more before the change

30.0030.50 29.84

Steady now (+0.01 inHg in 3 hours). Over the next 48 hours: −0.40 inHg. Steady pressure: anglers expect normal activity. Fast changes, either way, tend to affect fishing.

Air and pollen

Air qualityGood · 32

Saharan dustNo

Previous days

The weather over the last 30 days, as the models analyzed it. Tap a day to see it hour by hour.

Day	Sky	Low / high	Max wind
Tue 27	Mainly clear	36 / 50 °F	11 mph NNW
Mon 26	Overcast	40 / 65 °F	12 mph WNW
Sun 25	Clear sky	36 / 65 °F	8 mph W
Sat 24	Clear sky	33 / 57 °F	7 mph NW
Fri 23	Clear sky	38 / 52 °F	14 mph N
Thu 22	Overcast	40 / 57 °F	14 mph N
Wed 21	Overcast	37 / 56 °F	10 mph NNE

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Tue 20	Clear sky	37 / 62 °F	0	11 mph N
Mon 19	Mainly clear	38 / 57 °F	0	9 mph SSW
Sun 18	Clear sky	31 / 55 °F	0	8 mph WSW
Sat 17	Overcast	35 / 54 °F	0	15 mph NW
Fri 16	Rain	38 / 58 °F	0.63 in	14 mph S
Thu 15	Overcast	42 / 57 °F	0	13 mph NW
Wed 14	Heavy drizzle	49 / 64 °F	0.33 in	13 mph NW
Tue 13	Rain	41 / 49 °F	0.92 in	11 mph ENE
Mon 12	Drizzle	48 / 68 °F	0.14 in	13 mph NNW
Sun 11	Light drizzle	39 / 58 °F	0.01 in	10 mph SSW
Sat 10	Overcast	43 / 58 °F	0	13 mph WNW
Fri 9	Overcast	46 / 62 °F	0	14 mph W
Thu 8	Rain	51 / 65 °F	0.50 in	10 mph SW
Wed 7	Light drizzle	38 / 59 °F	0.01 in	10 mph SW
Tue 6	Partly cloudy	46 / 56 °F	0	18 mph WNW
Mon 5	Light drizzle	49 / 63 °F	0.05 in	15 mph W
Sun 4	Light drizzle	42 / 61 °F	0.01 in	8 mph ESE
Sat 3	Overcast	48 / 65 °F	0	9 mph NNW
Fri 2	Drizzle	55 / 78 °F	0.15 in	13 mph W
Thu 1	Overcast	54 / 71 °F	0	9 mph SSW
Wed 30	Overcast	55 / 65 °F	0	7 mph NW
Tue 29	Light rain	55 / 59 °F	0.48 in	10 mph NNE
Mon 28	Rain	53 / 56 °F	1.32 in	11 mph NE

These are the models at the start of each day (ECMWF and GFS; waves from Météo-France), not readings from a weather station: there can be differences at specific spots.

Questions about the weather in BelfastQuestions

What's the weather like today in Belfast?

Partly cloudy, from 27 °F to 51 °F, with a light breeze from the south-southwest (5 mph) and a 2% chance of rain.

Will it rain tomorrow in Belfast?

On Thursday 29 the chance of rain is 9% (0.00 in): mainly clear.

How warm will it be this week?

Between a low of 27 °F and a high of 63 °F; the warmest day, Thursday 29.

What's the UV index today?

It reaches 3 (low). No special protection needed.

Is the pressure rising or falling?

It's 30.36 inHg and steady: +0.01 inHg over the last 24 hours.

When is the best time to visit Belfast?

The best time to visit Belfast is from June to September: highs of 70 °F to 80 °F, about 9 rainy days a month and 7 hours of sunshine a day.

What is the weather like in Belfast in October?

In October, Belfast normally sees highs of 58 °F and lows of 39 °F, with about 9 rainy days (5.42 in for the month) and 4 hours of sunshine a day. The sea is around 54 °F. These are 1991–2020 averages.

What are the warmest and wettest months in Belfast?

The warmest is July, with average highs of 80 °F, and the coldest January, with lows of 12 °F. The wettest is October (5.42 in) and the driest, July.

More about Belfast today

Weather near Belfast

Only places with a different forecast: spots a few miles apart share the same model cell and wouldn't add anything.

Learn more

Weather: Open-Meteo, CC BY 4.0, with the best model for each spot and lead time (NOAA HRRR and NBM in the U.S., Météo-France AROME, DWD ICON-EU, ECMWF IFS and NOAA GFS); ECMWF grid point 5.1 mi away. The comparison also uses ICON (DWD), AIFS (ECMWF) and ARPEGE (Météo-France). Outlook: ECMWF 46-day and SEAS5. Chance of rain from ensemble models (ECMWF, GEFS and NBM). UV, air quality and pollen: CAMS (Copernicus).

Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 6:57 pm (local time).

Spotted a mistake? Tell us · Where the weather and sea data come from