Briton Ferry weather in September

In September, Briton Ferry sees average daytime highs of 16°C and overnight lows near 10°C, with 97 mm of rain across 13.2 wet days and about 12.4 hours of daylight. It is the 4th-warmest and 10th-wettest month of the year here.

Highs ease over the month, from about 17°C in the first days to 15°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 24 min at the start of September to 11 h 24 min by month's end. Set against the rest of the year, September is Briton Ferry's 4th-clearest and 9th-windiest month. For the whole year in context, see Briton Ferry's year-round climate.

Daytime high
16°
4th warmest
Overnight low
10°
9th coldest
Rainfall
97 mm
13.2 wet days
Daylight
12 h 24 min
5:58 AM – 6:21 PM
Cloud cover
72%
4th clearest
Wind
14 km/h
9th windiest
Solar energy
3.13 kWh/m²
Travel score
4.6
out of 10

Briton Ferry is town and community in Neath Port Talbot, Wales.

Density
4,499/km²
people per km²

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 17°C in the first days to 15°C by the end.

A typical September day in Briton Ferry reaches about 16°C in the afternoon and slips back to 10°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 19°C. Set against its neighbours, September runs about 2°C cooler than August and about 3°C warmer than October.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
11811
21711
31711
41711
51711
61710
71710
81710
91710
101710
111710
121710
131710
141710
151610
161610
171610
181610
191610
201610
211610
22169
23169
24169
25159
26159
27159
28159
29159
30159

How September really feels in Briton Ferry

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.

Briton Ferry weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 13916.31.48.10.6
Feb / 10613.21.69.60.8
Mar / 9514.30.911.51.6
Apr12° / 8814.10.413.62.7
May15° / 10014.80.115.33.7
Jun17° / 10°10214.4016.34.7
Jul19° / 12°10715.8015.95.1
Aug18° / 12°11315.4014.45.1
Sep16° / 10°9713.2012.44.6
Oct13° / 13415.40.110.43.1
Nov10° / 13115.90.48.61.7
Dec / 14615.50.97.70.8

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 16% of September, with mostly cloudy or overcast conditions the remaining 72%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13070
23070
33070
42971
53070
63070
73070
83070
93070
103070
113070
123070
132971
142971
152971
162971
172872
182872
192872
202773
212773
222674
232674
242674
252674
262476
272476
282476
292476
302476

Chance of precipitation in September

Any precipitation

Briton Ferry gets around 97 mm of rain over 13.2 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 44% and peaks near 50% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
141
241
341
441
541
642
742
842
942
1043
1143
1243
1343
1443
1543
1643
1744
1844
1944
2044
2145
2246
2346
2447
2548
2649
2750
2850
2950
3050

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 80% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
172262
273252
374251
475241
575241
676231
776231
877221
978211
1078211
1179201
1279201
1380191
1480191
1581181
1681181
1782171
1882171
1983170
2083170
2183170
2284160
2384160
2484160
2585150
2685150
2786140
2886140
2987130
3088120

Wind in September

Winds average 14 km/h in September.

Across September, daily wind ranges from about 13 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 24 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 120 minutes over September. Sunrise moves from 5:33 AM to 6:21 AM, and sunset from 6:57 PM to 5:48 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.45:336:57
213.35:356:55
313.35:366:52
413.25:386:50
513.15:406:48
613.15:416:45
713.05:436:43
812.95:456:40
912.95:466:38
1012.85:486:36
1112.75:506:33
1212.75:516:31
1312.65:536:29
1412.55:556:26
1512.55:566:24
1612.45:586:21
1712.36:006:19
1812.36:016:16
1912.26:036:14
2012.16:056:12
2112.16:066:09
2212.06:086:07
2311.96:106:04
2411.86:116:02
2511.86:136:00
2611.76:155:57
2711.66:165:55
2811.66:185:53
2911.56:205:50
3011.46:215:48

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.13 kWh/m².

For context, solar energy here swings from a low near 0.64 kWh/m² to a high of 5.49 kWh/m² in June across the year — September's 3.13 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
13.8Moderate
23.7Moderate
33.7Moderate
43.6Moderate
53.6Moderate
63.6Moderate
73.5Moderate
83.5Moderate
93.4Moderate
103.4Moderate
113.4Moderate
123.3Moderate
133.3Moderate
143.2Moderate
153.2Moderate
163.1Moderate
173.1Moderate
183.0Moderate
193.0Moderate
202.9Moderate
212.9Moderate
222.8Moderate
232.8Moderate
242.7Moderate
252.7Moderate
262.6Moderate
272.6Moderate
282.5Moderate
292.5Moderate
302.4Moderate
Planning a trip in September

Is September a good time to visit Briton Ferry?

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

4.6
Sightseeing
4th-best month of the year
0.8
Beach & pool
4th-best month of the year

September is a reasonable time to visit Briton Ferry for sightseeing.

What to pack for Briton Ferry in September

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

In September, Briton Ferry sees daytime highs around 16°C and nights near 10°C. Worth packing: a warm layer and rain gear. About 13 days see rain.

a warm layerrain gear

Sea temperature near Briton Ferry in September

The nearest coast averages about 17°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 18°C and coldest in February near 8°C.

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

5°10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan8Bracing
Feb8Bracing
Mar8Bracing
Apr9Bracing
May11Bracing
Jun14Bracing
Jul16Cool
Aug18Cool
Sep17Cool
Oct15Cool
Nov12Bracing
Dec10Bracing

UV index in Briton Ferry in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Briton Ferry peaks around August 13 at about 6 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 1 at about 1 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowAug 13UV 6Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr4Moderate
May6High
Jun6High
Jul6High
Aug7High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Briton Ferry?

Briton Ferry sits at 51.6°N, 3.8°W, 25 m above sea level, in United Kingdom. The nearest listed city is Neath, 4.0 km away.

Topography around Briton Ferry

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

Within 3 km, the terrain around Briton Ferry has significant variations in elevation — a maximum elevation change of 314 m around an average of 61 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 553 m; within 80 km, large variations in elevation — a maximum elevation change of 878 m.

The land around Briton Ferry is covered by trees (39%), grassland (31%) and artificial surfaces (22%) within 3 km, trees (36%), grassland (30%) and water (24%) within 16 km, and grassland (48%) and water (31%) within 80 km.

3 km
314 m
16 km
553 m
80 km
878 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
September weather nearby: Neath 4.0 km · Clydach 8.0 km · Swansea 9.0 km · Maesteg 11 km · Gorseinon 16 km · Porthcawl 19 km · Ammanford 21 km · Bridgend 22 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 Briton Ferry (51.6311°, -3.819°, elevation 25 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).