Wexford weather in September

In September, Wexford sees average daytime highs of 16°C and overnight lows near 13°C, with 74 mm of rain across 11.4 wet days and about 12.4 hours of daylight. It is the 3rd-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 16°C through the month. The sky is clear or mostly clear about 16% 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 Wexford's 4th-clearest and 8th-windiest month. For the whole year in context, see Wexford's year-round climate.

Daytime high
16°
3rd warmest
Overnight low
13°
10th coldest
Rainfall
74 mm
11.4 wet days
Daylight
12 h 24 min
6:08 AM – 6:32 PM
Cloud cover
70%
4th clearest
Wind
23 km/h
8th windiest
Solar energy
3.17 kWh/m²
Travel score
4.5
out of 10

Wexford is county town of Co. Wexford, Ireland.

Air quality
Moderate
PM2.5 14.1 µg/m³ · 2019

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 16°C through the month.

A typical September day in Wexford reaches about 16°C in the afternoon and slips back to 13°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 17°C. Set against its neighbours, September runs about 1°C cooler than August and about 2°C warmer than October.

10°13°15°18°20°151015202530
Avg high (°C)Avg low (°C)
11614
21614
31614
41614
51614
61614
71614
81614
91614
101614
111614
121613
131613
141613
151613
161613
171513
181513
191513
201513
211513
221513
231513
241513
251513
261513
271513
281513
291513
301513

Wexford weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan / 921481.5
Feb / 6712.19.51.4
Mar / 6410.611.51.7
Apr10° / 6210.813.62.2
May12° / 10°589.815.43.1
Jun14° / 12°6610.116.54.1
Jul16° / 14°6510.816.14.7
Aug16° / 14°7310.814.54.9
Sep16° / 13°7411.412.44.5
Oct14° / 11°11113.910.33.5
Nov11° / 11815.18.52.4
Dec10° / 10114.17.51.9

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 16% 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 68%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13367
23268
33268
43367
53466
63466
73466
83367
93367
103367
113367
123367
133367
143367
153466
163466
173466
183466
193367
203268
213268
223268
233169
243169
253169
263169
273169
283169
293070
303070

Chance of precipitation in September

Any precipitation

Wexford gets around 74 mm of rain over 11.4 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 37% and peaks near 43% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
130
230
331
431
532
633
733
834
935
1035
1136
1236
1336
1437
1537
1637
1737
1838
1938
2038
2139
2240
2340
2441
2542
2642
2743
2843
2943
3043

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 71% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
159392
259392
360382
460382
561372
662362
763352
864342
965332
1066322
1168311
1269301
1370291
1471281
1571281
1673270
1774260
1874260
1975250
2075250
2176240
2276240
2376240
2477230
2577230
2678220
2779210
2880200
2981190
3081190

Wind in September

Winds average 23 km/h in September.

Across September, daily wind ranges from about 22 km/h on the calmest days to 25 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202530
Wind speed (km/h)Feels
122breezy
222breezy
322breezy
422breezy
522breezy
622breezy
723breezy
823breezy
923breezy
1023breezy
1123breezy
1223breezy
1323breezy
1423breezy
1524breezy
1624breezy
1724breezy
1824breezy
1924breezy
2024breezy
2124breezy
2224breezy
2324breezy
2424breezy
2524breezy
2624breezy
2724breezy
2825breezy
2925breezy
3025breezy

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 5:43 AM to 6:32 AM, and sunset from 7:09 PM to 5:58 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.45:437:09
213.45:447:06
313.35:467:04
413.25:487:01
513.25:496:59
613.15:516:57
713.05:536:54
813.05:546:52
912.95:566:49
1012.85:586:47
1112.76:006:44
1212.76:016:42
1312.66:036:40
1412.56:056:37
1512.56:066:35
1612.46:086:32
1712.36:106:30
1812.36:126:27
1912.26:136:25
2012.16:156:22
2112.16:176:20
2212.06:186:17
2311.96:206:15
2411.86:226:13
2511.86:246:10
2611.76:256:08
2711.66:276:05
2811.66:296:03
2911.56:316:00
3011.46:325:58

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.17 kWh/m².

For context, solar energy here swings from a low near 0.62 kWh/m² to a high of 5.66 kWh/m² in June across the year — September's 3.17 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
13.8Moderate
23.8Moderate
33.8Moderate
43.7Moderate
53.7Moderate
63.6Moderate
73.6Moderate
83.5Moderate
93.5Moderate
103.4Moderate
113.4Moderate
123.4Moderate
133.3Moderate
143.3Moderate
153.2Moderate
163.2Moderate
173.1Moderate
183.1Moderate
193.0Moderate
203.0Moderate
212.9Moderate
222.9Moderate
232.8Moderate
242.8Moderate
252.7Moderate
262.7Moderate
272.6Moderate
282.6Moderate
292.5Moderate
302.5Moderate
Planning a trip in September

Is September a good time to visit Wexford?

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

4.5
Sightseeing
3rd-best month of the year
Beach & pool
never really warm enough

September is a reasonable time to visit Wexford for sightseeing.

What to pack for Wexford in September

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

In September, Wexford sees daytime highs around 16°C and nights near 13°C. Worth packing: a warm layer, rain gear and a windbreaker. About 11 days see rain.

a warm layerrain geara windbreaker

Sea temperature near Wexford in September

The nearest coast averages about 15°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 15°C and coldest in March near 8°C.

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

10°15°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan9Bracing
Feb9Bracing
Mar8Bracing
Apr9Bracing
May11Bracing
Jun13Bracing
Jul14Bracing
Aug15Cool
Sep15Cool
Oct14Bracing
Nov12Bracing
Dec11Bracing

UV index in Wexford 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 Wexford peaks around August 13 at about 6 (high) — a little sun protection helps at midday. 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
May5High
Jun6High
Jul5High
Aug6High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low

Air quality in Wexford in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Wexford is worst in April — around 19 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (November, 11 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Wexford's WHO annual average of 14.1 µg/m³.

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateModerateGoodModerateApr 1219 µg/m³Nov 1111 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb17Moderate
Mar18Moderate
Apr19Moderate
May16Moderate
Jun14Moderate
Jul12Good
Aug14Moderate
Sep13Moderate
Oct11Good
Nov11Good
Dec13Moderate
Location & terrain

Where is Wexford?

Wexford sits at 52.3°N, 6.5°W, 5 m above sea level, in Ireland. The nearest listed city is Waterford, 45 km away.

WaterfordKilkennyCarlowCluain MealaGreystonesPortlaoiseDroichead NuaNaas

Topography around Wexford

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

Within 3 km, the terrain around Wexford has only modest variations in elevation — a maximum elevation change of 95 m around an average of 20 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 228 m; within 80 km, large variations in elevation — a maximum elevation change of 931 m.

The land around Wexford is covered by water (43%) and grassland (24%) within 3 km, grassland (43%) and water (29%) within 16 km, and water (44%) and grassland (41%) within 80 km.

3 km
95 m
16 km
228 m
80 km
931 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Waterford 45 km · Kilkenny 65 km · Carlow 65 km · Cluain Meala 85 km · Greystones 94 km · Portlaoise 96 km · Droichead Nua 97 km · Naas 99 km

Ireland travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type G
230 V · 50 Hz
Prices
≈ 85% of US
price level, 2025
GDP per capita
$131,592
2025
Happiness
6.9 / 10
World Happiness, 2025
Safe drinking water
96%
of population, 2024
Homicide rate
0.7
per 100k, 2023
Road deaths
3.1
per 100k/yr, 2019
Income group
High
World Bank
Religion
Roman Catholic 69%none 15%Protestant 4%Orthodox 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 Wexford (52.3342°, -6.4575°, elevation 5 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).