Whitehaven weather in September

In September, Whitehaven sees average daytime highs of 15°C and overnight lows near 11°C, with 130 mm of rain across 15.8 wet days and about 12.5 hours of daylight. It is the 3rd-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 16°C in the first days to 14°C by the end. The sky is clear or mostly clear about 12% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 h 36 min at the start of September to 11 h 24 min by month's end. Set against the rest of the year, September is Whitehaven's 6th-clearest and 7th-windiest month. For the whole year in context, see Whitehaven's year-round climate.

Daytime high
15°
3rd warmest
Overnight low
11°
10th coldest
Rainfall
130 mm
15.8 wet days
Daylight
12 h 24 min
5:56 AM – 6:22 PM
Cloud cover
72%
6th clearest
Wind
19 km/h
7th windiest
Solar energy
2.71 kWh/m²
Travel score
3.8
out of 10

Whitehaven is coastal town and port in Cumbria, England, United Kingdom.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 16°C in the first days to 14°C by the end.

A typical September day in Whitehaven reaches about 15°C in the afternoon and slips back to 11°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 17°C. Set against its neighbours, September runs about 2°C cooler than August and about 3°C warmer than October.

10°15°20°151015202530
Avg high (°C)Avg low (°C)
11612
21612
31612
41612
51612
61612
71612
81612
91612
101512
111512
121512
131512
141512
151511
161511
171511
181511
191511
201511
211511
221511
231511
241411
251411
261411
271411
281411
291411
301410

How September really feels in Whitehaven

Once humidity and wind are folded in, September averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Whitehaven weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 15418.41.77.60.5
Feb / 12115.31.69.30.5
Mar / 10515.11.311.51.0
Apr10° / 8113.90.313.71.9
May13° / 8613.7015.83.1
Jun15° / 11°9614.6016.93.9
Jul17° / 13°11217016.44.3
Aug17° / 13°13518.1014.74.2
Sep15° / 11°13015.8012.53.8
Oct12° / 16618.1010.22.6
Nov / 16919.40.48.21.5
Dec / 16818.51.27.10.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 12% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 17% of September, with mostly cloudy or overcast conditions the remaining 71%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13268
23268
33268
43268
53169
63169
73070
83070
93070
103070
112971
122971
132971
142872
152971
162971
172971
182872
192773
202773
212773
222773
232773
242674
252674
262674
272674
282674
292674
302674

Chance of precipitation in September

Any precipitation

Whitehaven gets around 130 mm of rain over 15.8 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 53% and peaks near 58% on the wettest days.

0%20%40%60%151015202530
Rain chance (%)
154
253
353
453
553
653
753
853
953
1053
1153
1253
1353
1453
1552
1652
1752
1851
1951
2051
2151
2252
2352
2453
2554
2655
2756
2857
2957
3058

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the dry band about 85% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
176231
277221
377221
478211
579201
679201
780191
881181
981181
1082171
1183161
1284151
1384151
1485141
1585141
1687130
1787130
1887130
1988120
2088120
2189110
2289110
2389110
2490100
2590100
269190
279190
289280
299280
309370

Wind in September

Winds average 19 km/h in September.

Across September, daily wind ranges from about 18 km/h on the calmest days to 20 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202530
Wind speed (km/h)Feels
118light breeze
218light breeze
318light breeze
418light breeze
519light breeze
619light breeze
719light breeze
819light breeze
919light breeze
1019light breeze
1119light breeze
1219light breeze
1319light breeze
1419light breeze
1519light breeze
1619light breeze
1719light breeze
1819light breeze
1919light breeze
2019light breeze
2119light breeze
2219light breeze
2319light breeze
2419light breeze
2520light breeze
2620light breeze
2720light breeze
2820light breeze
2920light breeze
3020breezy

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 36 min at the start of September to 11 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 132 minutes over September. Sunrise moves from 5:27 AM to 6:22 AM, and sunset from 7:01 PM to 5:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.65:277:01
213.55:296:58
313.45:316:56
413.35:336:53
513.35:356:50
613.25:376:48
713.15:396:45
813.05:416:43
913.05:426:40
1012.95:446:37
1112.85:466:35
1212.75:486:32
1312.75:506:30
1412.65:526:27
1512.55:546:24
1612.45:566:22
1712.45:586:19
1812.35:596:16
1912.26:016:14
2012.16:036:11
2112.16:056:09
2212.06:076:06
2311.96:096:03
2411.86:116:01
2511.86:135:58
2611.76:155:55
2711.66:175:53
2811.56:185:50
2911.56:205:48
3011.46:225:45

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 2.71 kWh/m².

For context, solar energy here swings from a low near 0.44 kWh/m² to a high of 5.04 kWh/m² in June across the year — September's 2.71 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
13.3Moderate
23.3Moderate
33.2Moderate
43.2Moderate
53.1Moderate
63.1Moderate
73.1Moderate
83.0Moderate
93.0Moderate
103.0Moderate
112.9Moderate
122.9Moderate
132.8Moderate
142.8Moderate
152.8Moderate
162.7Moderate
172.7Moderate
182.6Moderate
192.6Moderate
202.5Moderate
212.5Moderate
222.4Moderate
232.4Moderate
242.4Moderate
252.3Moderate
262.3Moderate
272.2Moderate
282.2Moderate
292.1Moderate
302.1Moderate
Planning a trip in September

Is September a good time to visit Whitehaven?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

3.8
Sightseeing
4th-best month of the year
Beach & pool
never really warm enough

September is a weaker month for outdoor sightseeing in Whitehaven.

What to pack for Whitehaven in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Whitehaven sees daytime highs around 15°C and nights near 11°C. Pack rain gear. Worth having: a warm layer. About 16 days see rain.

rain geara warm layer

Sea temperature near Whitehaven in September

The nearest coast averages about 16°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 16°C and coldest in February near 6°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

5°10°15°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan7Bracing
Feb6Bracing
Mar7Bracing
Apr8Bracing
May11Bracing
Jun14Bracing
Jul16Cool
Aug16Cool
Sep16Cool
Oct14Bracing
Nov11Bracing
Dec9Bracing

UV index in Whitehaven in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Whitehaven peaks around May 23 at about 5 (high) — a little sun protection helps at midday. It bottoms out near December 20 at about 0 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowMay 23UV 5Dec 20UV 0
UV index (midday)Level
Jan1Low
Feb1Low
Mar2Moderate
Apr3Moderate
May6High
Jun5High
Jul5High
Aug5High
Sep3Moderate
Oct2Low
Nov1Low
Dec0Low
Location & terrain

Where is Whitehaven?

Whitehaven sits at 54.5°N, 3.6°W, 19 m above sea level, in United Kingdom. The nearest listed city is Workington, 11 km away.

Morecambe

Topography around Whitehaven

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Whitehaven.

Within 3 km, the terrain around Whitehaven has only modest variations in elevation — a maximum elevation change of 161 m around an average of 55 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 639 m; within 80 km, large variations in elevation — a maximum elevation change of 961 m.

The land around Whitehaven is covered by water (36%) and grassland (32%) within 3 km, water (53%) and grassland (35%) within 16 km, and grassland (48%) and water (40%) within 80 km.

3 km
161 m
16 km
639 m
80 km
961 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Workington 11 km · Windermere 48 km · Barrow in Furness 54 km · Penrith 55 km · Carlisle 57 km · Dumfries 58 km · Kendal 59 km · Morecambe 71 km

United Kingdom travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type D / G / M
230 V · 50 Hz
Prices
≈ 89% of US
price level, 2025
GDP per capita
$57,602
2025
Happiness
6.7 / 10
World Happiness, 2025
Safe drinking water
100%
of population, 2024
Homicide rate
1.1
per 100k, 2021
Road deaths
3.2
per 100k/yr, 2019
Income group
High
World Bank
Religion
Christian 60%none 26%Muslim 4%other 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Whitehaven (54.549°, -3.5841°, elevation 19 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).