Weather in Portstewart

14-day forecast · updated today, Wednesday, October 28, at 11:06 pm (GMT)

Now · overcast 52 °F

Feels like: 48 °F
Low / high: 50 / 57 °F
Rain: 98% · 0.04 in
Wind: 9 mph SSE

→ 30.17 inHg · steady

Today in Portstewart: light showers, 50 °F to 57 °F, with a 98% chance of rain (0.04 in) and a gentle breeze from the south-southeast (9 mph). Tomorrow, overcast, 50 °F to 56 °F and a 0% chance of rain. The warmest day of the week is Saturday 31, at 58 °F. Next likely rain: Friday 30 (12%).

Temperatures for the next 14 days

57° 50°
Today
56° 50°
Thu 29
56° 53°
Fri 30
58° 53°
Sat 31
53° 50°
Sun 1
53° 40°
Mon 2
51° 38°
Tue 3
51° 43°
Wed 4
52° 44°
Thu 5
51° 44°
Fri 6
49° 39°
Sat 7
46° 35°
Sun 8
53° 46°
Mon 9
54° 50°
Tue 10

Day by day

Day	Sky	Low / high	Rain	Max wind	Max wave	High tides	Model
Today · 28	Light showers	50 / 57 °F	98% · 0.04 in	18 mph SW	7.3 ft	7:23 am · 7:50 pm	ICON-EU
Thu 29	Overcast	50 / 56 °F	0%	16 mph SSE	4.5 ft	8:07 am · 8:38 pm	ICON-EU
Fri 30	Light showers	53 / 56 °F	12% · 0.19 in	23 mph SSE	2.6 ft	8:57 am · 9:34 pm	ICON-EU
Sat 31	Light showers	53 / 58 °F	31% · 0.14 in	11 mph S	3.1 ft	9:59 am · 10:57 pm	ICON-EU
Sun 1	Overcast	50 / 53 °F	6%	10 mph NNW	3.1 ft	11:58 am	ICON-EU
Mon 2	Partly cloudy	40 / 53 °F	0%	5 mph SE	2.7 ft	1:12 am · 1:51 pm	ICON-EU + ECMWF
Tue 3	Overcast	38 / 51 °F	0%	5 mph SSE	1.6 ft	2:24 am · 2:57 pm	ECMWF
Wed 4	Overcast	43 / 51 °F	0%	5 mph SE	2.0 ft	3:16 am · 3:49 pm	ECMWF
Thu 5	Overcast	44 / 52 °F	3%	10 mph SE	1.8 ft	3:57 am · 4:30 pm	ECMWF
Fri 6	Mainly clear	44 / 51 °F	6%	15 mph SE	1.9 ft	4:30 am · 5:03 pm	ECMWF
Sat 7	Overcast	39 / 49 °F	10%	8 mph SE	1.4 ft	5:00 am · 5:29 pm	ECMWF
Sun 8	Overcast	35 / 46 °F	21%	6 mph ESE	1.6 ft	5:31 am · 5:54 pm	ECMWF
Mon 9	Light drizzle	46 / 53 °F	22% · 0.02 in	8 mph ESE	1.9 ft	6:04 am · 6:21 pm	ECMWF
Tue 10	Drizzle	50 / 54 °F	25% · 0.12 in	8 mph E	2.1 ft	6:40 am · 6:50 pm	ECMWF

Each hour comes from the best model for this spot: ICON-EU until Monday 2 7:00 pm; then ECMWF until Thursday 12 3:00 pm; 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	Overcast	Light rain	Overcast	Partly cloudy	Partly cloudy	Overcast	Overcast	Overcast
Temperature	50°	53°	53°	54°	56°	56°	54°	52°
Chance of rain	57%	98%	76%	0%	27%	0%	0%	0%
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)	15 S	15 SW	11 WSW	11 SW	14 WSW	11 SW	6 S	7 SSE
Humidity	83%	86%	86%	88%	77%	78%	84%	91%
UV	0	0	0	0	1	0	0	0
Model	ICON-EU	ICON-EU	ICON-EU	ICON-EU	ICON-EU	ICON-EU	ICON-EU	ICON-EU

Do the models agree?

Medium confidence

They broadly agree, but not quite on rain today: take it with some caution.

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	57°	56°	59°	58°	54°	52°	51°
AIFS	56°	58°	59°	56°	53°	51°	50°
GFS	56°	56°	58°	54°	53°	55°	53°
ICON	57°	56°	56°	57°	53°	53°	52°
ARPEGE	56°	56°	56°	54°	—	—	—
ICON-EU	57°	56°	56°	58°	53°	—	—
Confidence	high	high	high	high	high	high	high

Do the models agree? · Rain
Rain	Today	Thu 29	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3
ECMWF	0.07 in	0	0	0.04 in	0	0	0
AIFS	0.10 in	0	0	0.09 in	0	0	0
GFS	0.11 in	0	0.00 in	0.23 in	0	0	0
ICON	0.01 in	0	0.13 in	0.04 in	0	0	0
ARPEGE	0.02 in	0	0	0.45 in	—	—	—
ICON-EU	0.04 in	0	0.19 in	0.14 in	0	—	—
Confidence	medium	high	medium	medium	high	high	high

Do the models agree? · Wind
Wind (mph)	Today	Thu 29	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3
ECMWF	1632	1529	1834	1019	1018	626	514
AIFS	16	15	15	9	8	6	6
GFS	1841	1333	1638	922	814	511	712
ICON	1626	1423	2034	1118	1119	49	59
ARPEGE	2036	2032	2743	1221	—	—	—
ICON-EU	1830	1625	2337	1118	1016	—	—
Confidence	high	high	medium	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)	98%	0%	12%	31%	6%	0%	0%
GFS (GEFS, 31 scenarios)	100%	0%	16%	46%	6%	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: normal temperatures, normal rain and a slightly warmer sea.

Next 6 weeks

When	TemperatureTemp.	Rain	Sea	Typical high / low
Nov 2 – Nov 8Nov 2–Nov 8	Normal +0.2 °F	Below −84%	Normal +0.4 °F	—
Nov 9 – Nov 15Nov 9–Nov 15	Normal +0.5 °F	Normal	A bit above +0.5 °F	49° / 47°
Nov 16 – Nov 22Nov 16–Nov 22	Normal +0.7 °F	Normal	A bit above +0.7 °F	49° / 46°
Nov 23 – Nov 29Nov 23–Nov 29	Normal +0.5 °F	Normal	A bit above +0.9 °F	48° / 45°
Nov 30 – Dec 6Nov 30–Dec 6	Normal +0.4 °F	Normal	A bit above +0.7 °F	47° / 45°

Coming months

When	TemperatureTemp.	Rain	Sea
November	Normal +0.4 °F	Normal	A bit above +1.1 °F
December	A bit above +1.1 °F	Normal	A bit above +1.1 °F
January	A bit above +1.1 °F	Normal	A bit above +0.9 °F
February	Normal +0.7 °F	Normal	A bit above +0.9 °F
March	A bit above +0.9 °F	Normal	A bit above +0.7 °F

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.

Portstewart climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit Portstewart is from June to August: highs of 62 °F to 65 °F, about 14 rainy days a month and 5 hours of sunshine a day.

46° 38°

JanJ
47° 38°

FebF
49° 39°

MarM
53° 41°

AprA
58° 46°

MayM
62° 50°

JunJ
64° 54°

JulJ
65° 54°

AugA
61° 51°

SepS
56° 47°

OctO
51° 42°

NovN
47° 39°

DecD

Highs and lows
Monthly rainfall
Best time

Month	High	Low	Rain	Rainy daysDays	Sun (h/day)	Water	Waves
JanuaryJan	46°	38°	5.15 in	17	0.9	48°	7.9 ft
FebruaryFeb	47°	38°	4.60 in	13	2.4	47°	7.7 ft
MarchMar	49°	39°	3.72 in	13	3.4	46°	6.5 ft
AprilApr	53°	41°	2.98 in	12	5.2	47°	4.9 ft
MayMay	58°	46°	2.83 in	12	6.4	49°	4.1 ft
JuneJun	62°	50°	3.41 in	13	5.8	52°	3.2 ft
JulyJul	64°	54°	3.45 in	15	5.1	55°	3.2 ft
AugustAug	65°	54°	4.23 in	15	4.4	57°	3.7 ft
SeptemberSep	61°	51°	3.93 in	13	4.0	57°	5.1 ft
OctoberOct	56°	47°	5.11 in	16	2.3	56°	5.7 ft
NovemberNov	51°	42°	5.42 in	16	1.3	53°	6.6 ft
DecemberDec	47°	39°	5.61 in	16	0.8	51°	7.9 ft

Month	Water	Waves
Jan	48°	7.9 ft
Feb	47°	7.7 ft
Mar	46°	6.5 ft
Apr	47°	4.9 ft
May	49°	4.1 ft
Jun	52°	3.2 ft
Jul	55°	3.2 ft
Aug	57°	3.7 ft
Sep	57°	5.1 ft
Oct	56°	5.7 ft
Nov	53°	6.6 ft
Dec	51°	7.9 ft

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

A normal year brings 50.46 in of rain on about 171 days and about 1,300 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

Now52 °Ffeels like 48 °F

Tomorrow50 / 56 °F

It's 52 °F now (feels like 48 °F). Today, 50 °F to 57 °F; tomorrow, 50 °F to 56 °F.

Chance of rain

Today 98% 0.04 in
Thu 29 0%
Fri 30 12% 0.19 in
Sat 31 31% 0.14 in
Sun 1 6%
Mon 2 0%
Tue 3 0%

Today the chance of rain reaches 98%, with 0.04 in in total. The next day with likely rain is Friday 30: 12% and 0.19 in.

Recent rain: last 24 hours, 0.04 in; last 3 days, 0.54 in; last 7 days, 1.83 in.

Humidity and dew point

Humidity93%

Dew point50 °F

Humidity is 93% now and the dew point is 50 °F. The temperature is very close to the dew point: fog may form.

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

Visibility and fog

Now9.4 migood

Clouds100%

Visibility is good now (9.4 mi). No fog expected today.

UV index

Now0

Today's peak1low

Thu 29: 1 · Fri 30: 1 · Sat 31: 1

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

29.8030.0030.2030.40 30.34

Steady now (+0.02 inHg in 3 hours). Over the next 48 hours: +0.17 inHg. Steady pressure: anglers expect normal activity. Fast changes, either way, tend to affect fishing.

Air and pollen

Air qualityFair · 24

PollenNoneToday, at most none.

Pollen: Copernicus CAMS model (a rough guide, not a pollen trap). Levels use each type's usual thresholds.

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	Rain	Max wind
Tue 27	Light rain	46 / 55 °F	0.20 in	22 mph SW
Mon 26	Light rain	45 / 61 °F	0.41 in	20 mph S
Sun 25	Drizzle	45 / 50 °F	0.28 in	30 mph W
Sat 24	Rain	41 / 51 °F	0.67 in	28 mph SSW
Fri 23	Heavy drizzle	40 / 47 °F	0.35 in	15 mph WNW
Thu 22	Overcast	36 / 53 °F	0	7 mph SW
Wed 21	Rain	38 / 49 °F	1.28 in	19 mph WNW

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Tue 20	Light drizzle	45 / 55 °F	0.01 in	15 mph SE
Mon 19	Overcast	36 / 55 °F	0	11 mph SE
Sun 18	Clear sky	36 / 54 °F	0	6 mph S
Sat 17	Partly cloudy	40 / 54 °F	0	5 mph NNE
Fri 16	Drizzle	44 / 52 °F	0.07 in	9 mph W
Thu 15	Light rain	47 / 56 °F	0.27 in	13 mph WSW
Wed 14	Drizzle	49 / 62 °F	0.15 in	22 mph S
Tue 13	Light rain	49 / 63 °F	0.27 in	20 mph WSW
Mon 12	Light rain	55 / 63 °F	0.14 in	19 mph SSE
Sun 11	Light drizzle	43 / 55 °F	0.00 in	17 mph SSE
Sat 10	Light drizzle	47 / 54 °F	0.10 in	19 mph WNW
Fri 9	Light drizzle	50 / 59 °F	0.18 in	20 mph W
Thu 8	Light rain	44 / 58 °F	0.51 in	16 mph SW
Wed 7	Light drizzle	43 / 53 °F	0.07 in	15 mph WNW
Tue 6	Light drizzle	46 / 57 °F	0.02 in	8 mph WNW
Mon 5	Light drizzle	53 / 62 °F	0.04 in	14 mph WSW
Sun 4	Overcast	51 / 64 °F	0	14 mph SSW
Sat 3	Overcast	47 / 60 °F	0	11 mph SW
Fri 2	Drizzle	49 / 58 °F	0.18 in	18 mph SSW
Thu 1	Light drizzle	49 / 60 °F	0.01 in	15 mph S
Wed 30	Rain	54 / 63 °F	0.53 in	22 mph S
Tue 29	Light rain	52 / 63 °F	0.26 in	24 mph SE
Mon 28	Overcast	46 / 60 °F	0	13 mph S

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 PortstewartQuestions

What's the weather like today in Portstewart?

Light showers, from 50 °F to 57 °F, with a gentle breeze from the south-southeast (9 mph) and a 98% chance of rain.

Will it rain tomorrow in Portstewart?

On Thursday 29 the chance of rain is 0% (0.00 in): overcast.

How warm will it be this week?

Between a low of 38 °F and a high of 58 °F; the warmest day, Saturday 31.

What's the UV index today?

It reaches 1 (low). No special protection needed.

Is the pressure rising or falling?

It's 30.17 inHg and steady: +0.38 inHg over the last 24 hours.

When is the best time to visit Portstewart?

The best time to visit Portstewart is from June to August: highs of 62 °F to 65 °F, about 14 rainy days a month and 5 hours of sunshine a day.

What is the weather like in Portstewart in October?

In October, Portstewart normally sees highs of 56 °F and lows of 47 °F, with about 16 rainy days (5.11 in for the month) and 2 hours of sunshine a day. The sea is around 56 °F. These are 1991–2020 averages.

What are the warmest and wettest months in Portstewart?

The warmest is August, with average highs of 65 °F, and the coldest February, with lows of 38 °F. The wettest is December (5.61 in) and the driest, May.

More about Portstewart today

Weather near Portstewart

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 13 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 11:06 pm (local time).

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