Weather in Castletown

14-day forecast · updated today, Thursday, October 29, at 12:10 am (GMT)

Now · overcast 54 °F

Feels like: 52 °F
Low / high: 53 / 57 °F
Rain: 4% · 0.02 in
Wind: 6 mph SW

→ 30.25 inHg · steady

Today in Castletown: light showers, 53 °F to 57 °F, with a 4% chance of rain (0.02 in) and a light breeze from the southwest (6 mph). Tomorrow, overcast, 54 °F to 57 °F and a 2% chance of rain. The warmest day of the week is Saturday 31, at 57 °F. No significant rain expected over the next 7 days.

Temperatures for the next 14 days

57° 53°
Today
57° 54°
Fri 30
57° 49°
Sat 31
54° 49°
Sun 1
54° 48°
Mon 2
53° 50°
Tue 3
53° 51°
Wed 4
53° 50°
Thu 5
52° 49°
Fri 6
50° 48°
Sat 7
56° 50°
Sun 8
58° 55°
Mon 9
57° 53°
Tue 10
55° 53°
Wed 11

Day by day

Day	Sky	Low / high	Rain	Max wind	Max wave	High tides	Model
Today · 29	Light showers	53 / 57 °F	4% · 0.02 in	17 mph S	4.1 ft	9:59 am · 10:32 pm	ICON-EU
Fri 30	Overcast	54 / 57 °F	2%	16 mph S	4.2 ft	10:45 am	ICON-EU
Sat 31	Overcast	49 / 57 °F	4%	7 mph SSW	1.7 ft	3:28 am · 11:33 am	ICON-EU
Sun 1	Overcast	49 / 54 °F	6%	10 mph N	2.2 ft	4:46 am · 4:48 pm	ICON-EU
Mon 2	Overcast	48 / 54 °F	6%	9 mph NE	1.8 ft	6:04 am · 5:59 pm	ICON-EU + ECMWF
Tue 3	Overcast	50 / 53 °F	4%	9 mph ENE	1.7 ft	7:16 am · 7:06 pm	ECMWF
Wed 4	Light drizzle	51 / 53 °F	10% · 0.02 in	9 mph ENE	2.6 ft	8:16 am · 8:05 pm	ECMWF
Thu 5	Overcast	50 / 53 °F	6%	13 mph E	3.4 ft	9:08 am · 8:58 pm	ECMWF
Fri 6	Overcast	49 / 52 °F	11%	12 mph ESE	2.7 ft	9:52 am · 9:46 pm	ECMWF
Sat 7	Light drizzle	48 / 50 °F	16% · 0.05 in	10 mph E	3.5 ft	10:29 am · 6:44 pm	ECMWF
Sun 8	Light rain	50 / 56 °F	24% · 0.60 in	12 mph E	3.1 ft	7:11 am · 7:22 pm	ECMWF
Mon 9	Light rain	55 / 58 °F	29% · 0.27 in	8 mph SSE	3.1 ft	7:50 am · 8:02 pm	ECMWF
Tue 10	Heavy drizzle	53 / 57 °F	29% · 0.48 in	5 mph ENE	1.8 ft	8:30 am · 8:41 pm	ECMWF
Wed 11	Light drizzle	53 / 55 °F	25% · 0.20 in	15 mph SSW	4.1 ft	9:11 am · 9:20 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	Overcast	Overcast	Light showers	Overcast	Overcast	Overcast	Partly cloudy
Temperature	54°	54°	53°	55°	56°	56°	54°	55°
Chance of rain	0%	0%	0%	0%	2%	4%	0%	0%
Rain	0.00 in	0.00 in	0.00 in	0.01 in	0.00 in	0.00 in	0.00 in	0.00 in
Wind (mph)	6 SW	5 SW	4 SSW	8 S	13 SSE	13 S	12 S	16 S
Humidity	94%	92%	94%	91%	82%	80%	82%	73%
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?

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	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	57°	58°	58°	54°	52°	53°	53°
AIFS	58°	58°	57°	55°	52°	51°	51°
GFS	57°	57°	58°	55°	55°	54°	54°
ICON	57°	57°	58°	55°	54°	52°	53°
ARPEGE	57°	57°	55°	—	—	—	—
ICON-EU	57°	57°	57°	54°	—	—	—
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	0	0	0	0	0.02 in
AIFS	0	0	0	0	0	0	0
GFS	0.02 in	0	0	0	0	0	0
ICON	0	0	0	0	0	0.01 in	0.02 in
ARPEGE	0	0	0	—	—	—	—
ICON-EU	0.02 in	0	0	0	—	—	—
Confidence	high	high	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	1732	1527	613	1421	1020	918	917
AIFS	15	13	6	12	10	11	12
GFS	2127	2027	99	1619	1318	1113	1215
ICON	1625	1626	812	915	1118	1323	1219
ARPEGE	1828	1727	613	—	—	—	—
ICON-EU	1727	1626	711	1015	—	—	—
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)	4%	2%	4%	6%	6%	4%	10%
GFS (GEFS, 31 scenarios)	0%	0%	16%	7%	0%	9%	10%

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, normal rain and a slightly warmer sea.

Next 6 weeks

When	TemperatureTemp.	Rain	Sea	Typical high / low
Nov 2 – Nov 8Nov 2–Nov 8	A bit above +0.9 °F	Below −59%	A bit above +1.6 °F	—
Nov 9 – Nov 15Nov 9–Nov 15	A bit above +0.9 °F	Normal	A bit above +1.6 °F	—
Nov 16 – Nov 22Nov 16–Nov 22	A bit above +1.4 °F	A bit above +35%	A bit above +1.6 °F	52° / 49°
Nov 23 – Nov 29Nov 23–Nov 29	A bit above +1.1 °F	A bit above +25%	A bit above +1.4 °F	51° / 48°
Nov 30 – Dec 6Nov 30–Dec 6	Normal +0.7 °F	Normal	A bit above +1.4 °F	50° / 47°

Coming months

When	TemperatureTemp.	Rain	Sea
November	A bit above +0.9 °F	Normal	Above +1.8 °F
December	A bit above +1.4 °F	Normal	A bit above +1.6 °F
January	A bit above +1.3 °F	Normal	A bit above +1.4 °F
February	A bit above +1.1 °F	Normal	A bit above +1.4 °F
March	A bit above +1.3 °F	Normal	A bit above +1.4 °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.

Castletown climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit Castletown is from June to August: highs of 63 °F to 66 °F, about 11 rainy days a month and 6 hours of sunshine a day.

47° 38°

JanJ
48° 38°

FebF
51° 39°

MarM
54° 42°

AprA
59° 46°

MayM
63° 51°

JunJ
66° 54°

JulJ
66° 54°

AugA
63° 51°

SepS
58° 47°

OctO
52° 42°

NovN
48° 39°

DecD

Highs and lows
Monthly rainfall
Best time

Month	High	Low	Rain	Rainy daysDays	Sun (h/day)	Water	Waves
JanuaryJan	47°	38°	3.32 in	13	1.5	48°	5.0 ft
FebruaryFeb	48°	38°	2.79 in	12	2.6	47°	5.3 ft
MarchMar	51°	39°	2.42 in	11	3.8	47°	3.9 ft
AprilApr	54°	42°	2.68 in	11	5.3	48°	3.2 ft
MayMay	59°	46°	2.51 in	10	6.3	51°	2.9 ft
JuneJun	63°	51°	2.28 in	10	6.6	54°	2.7 ft
JulyJul	66°	54°	2.78 in	11	5.4	57°	2.3 ft
AugustAug	66°	54°	3.21 in	11	4.9	59°	2.9 ft
SeptemberSep	63°	51°	3.20 in	11	4.3	59°	3.2 ft
OctoberOct	58°	47°	4.31 in	13	2.9	58°	4.3 ft
NovemberNov	52°	42°	4.65 in	15	1.9	54°	4.9 ft
DecemberDec	48°	39°	3.92 in	15	1.1	51°	5.7 ft

Month	Water	Waves
Jan	48°	5.0 ft
Feb	47°	5.3 ft
Mar	47°	3.9 ft
Apr	48°	3.2 ft
May	51°	2.9 ft
Jun	54°	2.7 ft
Jul	57°	2.3 ft
Aug	59°	2.9 ft
Sep	59°	3.2 ft
Oct	58°	4.3 ft
Nov	54°	4.9 ft
Dec	51°	5.7 ft

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

A normal year brings 38.07 in of rain on about 142 days and about 1,400 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

Now54 °Ffeels like 52 °F

Tomorrow54 / 57 °F

It's 54 °F now (feels like 52 °F). Today, 53 °F to 57 °F; tomorrow, 54 °F to 57 °F.

Chance of rain

Today 4% 0.02 in
Fri 30 2%
Sat 31 4%
Sun 1 6%
Mon 2 6%
Tue 3 4%
Wed 4 10% 0.02 in

Today the chance of rain reaches 4%, with 0.02 in in total. No significant rain expected this week.

Recent rain: last 24 hours, 0.00 in; last 3 days, 0.67 in; last 7 days, 1.98 in.

Humidity and dew point

Humidity94%

Dew point52 °F

Humidity is 94% now and the dew point is 52 °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

Now11 migood

Clouds100%

Visibility is good now (11 mi). No fog expected today.

UV index

Now0

Today's peak1low

Fri 30: 1 · Sat 31: 1 · 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 30.39

Steady now (+0.01 inHg in 3 hours). Over the next 48 hours: +0.14 inHg. Steady pressure: anglers expect normal activity. Fast changes, either way, tend to affect fishing.

Air and pollen

Air qualityFair · 26

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	Light drizzle	49 / 59 °F	0.01 in	17 mph SW
Tue 27	Light rain	47 / 56 °F	0.07 in	21 mph WSW
Mon 26	Light rain	46 / 62 °F	0.60 in	29 mph SSW
Sun 25	Overcast	45 / 52 °F	0	25 mph W
Sat 24	Light rain	45 / 59 °F	0.50 in	25 mph SW
Fri 23	Light rain	44 / 53 °F	0.50 in	24 mph NW
Thu 22	Light rain	44 / 54 °F	0.32 in	21 mph SSW

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Wed 21	Light rain	45 / 54 °F	0.28 in	25 mph W
Tue 20	Light rain	51 / 57 °F	0.16 in	15 mph SSE
Mon 19	Light drizzle	46 / 55 °F	0.08 in	14 mph ENE
Sun 18	Mainly clear	41 / 54 °F	0	11 mph NNE
Sat 17	Partly cloudy	42 / 55 °F	0	11 mph N
Fri 16	Mainly clear	44 / 55 °F	0	13 mph WNW
Thu 15	Drizzle	50 / 61 °F	0.12 in	21 mph SW
Wed 14	Light drizzle	50 / 61 °F	0.01 in	23 mph SSW
Tue 13	Light rain	50 / 63 °F	0.16 in	22 mph WSW
Mon 12	Light rain	59 / 64 °F	0.20 in	20 mph SSW
Sun 11	Light rain	43 / 59 °F	0.19 in	17 mph SSE
Sat 10	Overcast	47 / 56 °F	0	17 mph W
Fri 9	Light drizzle	51 / 60 °F	0.04 in	24 mph W
Thu 8	Light drizzle	44 / 59 °F	0.07 in	17 mph WSW
Wed 7	Light drizzle	45 / 56 °F	0.02 in	15 mph NW
Tue 6	Light drizzle	53 / 60 °F	0.14 in	12 mph N
Mon 5	Light drizzle	58 / 69 °F	0.01 in	14 mph WSW
Sun 4	Overcast	46 / 66 °F	0	12 mph SW
Sat 3	Mainly clear	45 / 59 °F	0	9 mph WSW
Fri 2	Drizzle	54 / 62 °F	0.22 in	23 mph SW
Thu 1	Light drizzle	49 / 61 °F	0.01 in	15 mph SW
Wed 30	Rain	54 / 63 °F	0.52 in	20 mph SSW
Tue 29	Rain	56 / 65 °F	0.92 in	26 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 CastletownQuestions

What's the weather like today in Castletown?

Light showers, from 53 °F to 57 °F, with a light breeze from the southwest (6 mph) and a 4% chance of rain.

Will it rain tomorrow in Castletown?

On Friday 30 the chance of rain is 2% (0.00 in): overcast.

How warm will it be this week?

Between a low of 48 °F and a high of 57 °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 30.25 inHg and steady: +0.22 inHg over the last 24 hours.

When is the best time to visit Castletown?

The best time to visit Castletown is from June to August: highs of 63 °F to 66 °F, about 11 rainy days a month and 6 hours of sunshine a day.

What is the weather like in Castletown in October?

In October, Castletown normally sees highs of 58 °F and lows of 47 °F, with about 13 rainy days (4.31 in for the month) and 3 hours of sunshine a day. The sea is around 58 °F. These are 1991–2020 averages.

What are the warmest and wettest months in Castletown?

The warmest is August, with average highs of 66 °F, and the coldest February, with lows of 38 °F. The wettest is November (4.65 in) and the driest, June.

More about Castletown today

Weather near Castletown

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 3.2 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 12:10 am (local time).

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