Weather in Londonderry

14-day forecast · updated today, Thursday, October 29, at 6:15 am (GMT)

Now · overcast 51 °F

Feels like: 47 °F
Low / high: 51 / 56 °F
Rain: 0%
Wind: 9 mph S

→ 30.18 inHg · steady

Today in Londonderry: overcast, 51 °F to 56 °F, with a 0% chance of rain and a gentle breeze from the south (9 mph). Tomorrow, light rain, 52 °F to 58 °F and a 10% chance of rain. The warmest day of the week is Friday 30, at 58 °F.

Measured now at the airport

Derry/City (EGAE), 6.6 mi away · 29 min ago

Visibility6.2 mi or more

WeatherNothing to note

Temperature52 °F

Wind8 mph from the south

It's what the airport's weather station measured, not a forecast: on the coast, wind and fog can be different. Airports report every 30 or 60 minutes.

Airport METAR report, via NOAA's Aviation Weather Center (aviationweather.gov). Sources and licenses

Temperatures for the next 14 days

56° 51°
Today
58° 52°
Fri 30
56° 52°
Sat 31
53° 45°
Sun 1
53° 38°
Mon 2
52° 37°
Tue 3
51° 44°
Wed 4
52° 44°
Thu 5
52° 43°
Fri 6
49° 40°
Sat 7
47° 37°
Sun 8
53° 46°
Mon 9
54° 51°
Tue 10
54° 50°
Wed 11

Day by day

Day	Sky	Low / high	Rain	Max wind	Max wave	Model
Today · 29	Overcast	51 / 56 °F	0%	15 mph SSE	2.2 ft	ICON-EU
Fri 30	Light rain	52 / 58 °F	10% · 0.27 in	19 mph S	1.6 ft	ICON-EU
Sat 31	Light rain	52 / 56 °F	24% · 0.07 in	7 mph SSW	1.6 ft	ICON-EU
Sun 1	Overcast	45 / 53 °F	6%	7 mph N	1.6 ft	ICON-EU
Mon 2	Fog	38 / 53 °F	2%	4 mph SE	1.3 ft	ICON-EU
Tue 3	Fog	37 / 52 °F	2%	4 mph ESE	0.7 ft	ICON-EU + ECMWF
Wed 4	Overcast	44 / 51 °F	0%	4 mph SE	0.7 ft	ECMWF
Thu 5	Overcast	44 / 52 °F	2%	10 mph ESE	0.7 ft	ECMWF
Fri 6	Mainly clear	43 / 52 °F	6%	10 mph ESE	0.9 ft	ECMWF
Sat 7	Overcast	40 / 49 °F	10%	8 mph ESE	—	ECMWF
Sun 8	Overcast	37 / 47 °F	24%	6 mph E	—	ECMWF
Mon 9	Light drizzle	46 / 53 °F	22% · 0.02 in	7 mph E	—	ECMWF
Tue 10	Drizzle	51 / 54 °F	31% · 0.12 in	9 mph ENE	—	ECMWF
Wed 11	Drizzle	50 / 54 °F	29% · 0.21 in	13 mph SE	—	ECMWF

Each hour comes from the best model for this spot: ICON-EU until Tuesday 3 1:00 am; 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.

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	Partly cloudy	Partly cloudy	Overcast	Overcast	Overcast	Overcast	Overcast
Temperature	52°	52°	51°	52°	55°	56°	54°	53°
Chance of rain	0%	0%	0%	0%	0%	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)	7 S	7 S	8 S	10 SSE	13 SSE	13 S	11 SSE	14 SSE
Humidity	91%	92%	91%	87%	82%	78%	78%	82%
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?

Low confidence

They don't agree on rain tomorrow: it may change, so check again closer to the day.

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	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	58°	59°	56°	53°	52°	52°	51°
AIFS	57°	59°	55°	52°	49°	48°	50°
GFS	56°	58°	53°	52°	55°	53°	52°
ICON	56°	58°	56°	53°	53°	52°	51°
ARPEGE	57°	56°	55°	53°	—	—	—
ICON-EU	56°	58°	56°	53°	53°	—	—
Confidence	high	high	high	high	high	high	high

Do the models agree? · Rain
Rain	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	0	0.03 in	0.01 in	0	0	0	0
AIFS	0	0.06 in	0.15 in	0	0	0	0
GFS	0	0	0.10 in	0	0	0	0
ICON	0	0.24 in	0.05 in	0	0	0	0
ARPEGE	0	0.01 in	0.11 in	0	—	—	—
ICON-EU	0	0.27 in	0.07 in	0	0	—	—
Confidence	high	low	high	high	high	high	high

Do the models agree? · Wind
Wind (mph)	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	1731	2036	1019	919	421	411	410
AIFS	15	15	7	6	5	6	5
GFS	1433	1334	625	611	46	48	22
ICON	1528	1936	713	815	48	511	49
ARPEGE	1631	1936	1221	713	—	—	—
ICON-EU	1530	1939	714	715	48	—	—
Confidence	high	high	high	high	high	high	high

Chance of rain from the ensemble models

Model	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF (51 scenarios)	0%	10%	24%	6%	2%	2%	0%
GFS (GEFS, 31 scenarios)	0%	46%	67%	3%	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.

The next few weeks look normal for the time of year.

Next 6 weeks

When	TemperatureTemp.	Rain	Typical high / low
Nov 2 – Nov 8Nov 2–Nov 8	Normal +0.2 °F	Below −83%	—
Nov 9 – Nov 15Nov 9–Nov 15	Normal +0.5 °F	Normal	—
Nov 16 – Nov 22Nov 16–Nov 22	A bit above +0.9 °F	Normal	47° / 41°
Nov 23 – Nov 29Nov 23–Nov 29	Normal +0.4 °F	Normal	46° / 41°
Nov 30 – Dec 6Nov 30–Dec 6	Normal 0.0 °F	Normal	45° / 40°

Coming months

When	TemperatureTemp.	Rain
November	Normal +0.2 °F	Normal
December	A bit above +1.1 °F	Normal
January	A bit above +1.1 °F	Normal
February	A bit above +0.9 °F	Normal
March	A bit above +0.9 °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.

Londonderry climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit Londonderry is from June to August: highs of 62 °F to 64 °F, about 15 rainy days a month and 5 hours of sunshine a day.

46° 38°

JanJ
47° 37°

FebF
50° 39°

MarM
53° 42°

AprA
58° 46°

MayM
62° 51°

JunJ
64° 54°

JulJ
64° 54°

AugA
62° 51°

SepS
56° 46°

OctO
50° 42°

NovN
46° 38°

DecD

Highs and lows
Monthly rainfall
Best time

Month	High	Low	Rain	Rainy daysDays	Sun (h/day)	Water	Waves
JanuaryJan	46°	38°	5.41 in	18	0.8	48°	11 ft
FebruaryFeb	47°	37°	4.65 in	15	2.2	47°	11 ft
MarchMar	50°	39°	3.88 in	14	3.3	47°	8.9 ft
AprilApr	53°	42°	3.39 in	13	5.2	48°	6.7 ft
MayMay	58°	46°	3.05 in	12	6.4	50°	5.7 ft
JuneJun	62°	51°	3.93 in	14	5.6	54°	4.6 ft
JulyJul	64°	54°	4.47 in	16	4.9	57°	4.5 ft
AugustAug	64°	54°	4.80 in	16	4.1	58°	5.1 ft
SeptemberSep	62°	51°	4.61 in	14	3.8	58°	7.0 ft
OctoberOct	56°	46°	5.74 in	16	2.3	56°	7.6 ft
NovemberNov	50°	42°	6.35 in	17	1.3	53°	8.9 ft
DecemberDec	46°	38°	6.24 in	17	0.7	50°	11 ft

Month	Water	Waves
Jan	48°	11 ft
Feb	47°	11 ft
Mar	47°	8.9 ft
Apr	48°	6.7 ft
May	50°	5.7 ft
Jun	54°	4.6 ft
Jul	57°	4.5 ft
Aug	58°	5.1 ft
Sep	58°	7.0 ft
Oct	56°	7.6 ft
Nov	53°	8.9 ft
Dec	50°	11 ft

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

A normal year brings 56.52 in of rain on about 182 days and about 1,250 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

Now51 °Ffeels like 47 °F

Tomorrow52 / 58 °F

It's 51 °F now (feels like 47 °F). Today, 51 °F to 56 °F; tomorrow, 52 °F to 58 °F.

Chance of rain

Today 0%
Fri 30 10% 0.27 in
Sat 31 24% 0.07 in
Sun 1 6%
Mon 2 2%
Tue 3 2%
Wed 4 0%

Today the chance of rain reaches 0%. The next day with likely rain is Friday 30: 10% and 0.27 in.

Recent rain: last 24 hours, 0.00 in; last 3 days, 0.81 in; last 7 days, 1.98 in.

Humidity and dew point

Humidity91%

Dew point48 °F

Humidity is 91% now and the dew point is 48 °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

Now13 migood

Clouds89%

Visibility is good now (13 mi). No fog expected today.

UV index

Now0

Today's peak1low

Fri 30: 1 · Sat 31: 0 · Sun 1: 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

30.0030.2030.40 30.36

Steady now (+0.01 inHg in 3 hours). Over the next 48 hours: +0.18 inHg. Steady pressure: anglers expect normal activity. Fast changes, either way, tend to affect fishing.

Air and pollen

Air qualityGood · 20

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
Wed 28	Drizzle	50 / 57 °F	0.13 in	19 mph SW
Tue 27	Light rain	47 / 54 °F	0.36 in	24 mph SW
Mon 26	Light rain	46 / 62 °F	0.42 in	22 mph S
Sun 25	Drizzle	46 / 50 °F	0.26 in	30 mph W
Sat 24	Light rain	43 / 53 °F	0.69 in	30 mph SSW
Fri 23	Drizzle	43 / 48 °F	0.21 in	17 mph WNW
Thu 22	Overcast	40 / 53 °F	0	8 mph SSW

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Wed 21	Rain	41 / 51 °F	1.00 in	22 mph WNW
Tue 20	Light drizzle	47 / 57 °F	0.00 in	15 mph SE
Mon 19	Partly cloudy	36 / 55 °F	0	11 mph ESE
Sun 18	Mainly clear	37 / 53 °F	0	6 mph S
Sat 17	Overcast	40 / 55 °F	0	6 mph NE
Fri 16	Drizzle	45 / 53 °F	0.09 in	11 mph W
Thu 15	Light rain	47 / 56 °F	0.36 in	15 mph SW
Wed 14	Light rain	50 / 61 °F	0.33 in	24 mph SSW
Tue 13	Rain	50 / 63 °F	0.45 in	23 mph WSW
Mon 12	Rain	56 / 63 °F	0.12 in	21 mph S
Sun 11	Overcast	44 / 56 °F	0	18 mph SSE
Sat 10	Light drizzle	48 / 54 °F	0.09 in	21 mph WNW
Fri 9	Heavy drizzle	50 / 59 °F	0.29 in	19 mph W
Thu 8	Rain	46 / 58 °F	0.63 in	17 mph SW
Wed 7	Light drizzle	45 / 53 °F	0.07 in	15 mph WNW
Tue 6	Light drizzle	47 / 57 °F	0.02 in	8 mph WNW
Mon 5	Light drizzle	53 / 62 °F	0.04 in	18 mph WSW
Sun 4	Overcast	52 / 63 °F	0	16 mph SSW
Sat 3	Overcast	48 / 59 °F	0	12 mph SW
Fri 2	Drizzle	50 / 58 °F	0.22 in	19 mph SSW
Thu 1	Light drizzle	50 / 59 °F	0.01 in	17 mph SSW
Wed 30	Light rain	55 / 64 °F	0.27 in	22 mph S
Tue 29	Heavy drizzle	53 / 64 °F	0.16 in	27 mph SE

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 LondonderryQuestions

What's the weather like today in Londonderry?

Overcast, from 51 °F to 56 °F, with a gentle breeze from the south (9 mph) and a 0% chance of rain.

Will it rain tomorrow in Londonderry?

On Friday 30 the chance of rain is 10% (0.27 in): light rain.

How warm will it be this week?

Between a low of 37 °F and a high of 58 °F; the warmest day, Friday 30.

What's the UV index today?

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

Is the pressure rising or falling?

It's 30.18 inHg and steady: +0.28 inHg over the last 24 hours.

When is the best time to visit Londonderry?

The best time to visit Londonderry is from June to August: highs of 62 °F to 64 °F, about 15 rainy days a month and 5 hours of sunshine a day.

What is the weather like in Londonderry in October?

In October, Londonderry normally sees highs of 56 °F and lows of 46 °F, with about 16 rainy days (5.74 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 Londonderry?

The warmest is July, with average highs of 64 °F, and the coldest February, with lows of 37 °F. The wettest is November (6.35 in) and the driest, May.

More about Londonderry today

Weather near Londonderry

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 2.4 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 6:15 am (local time).

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