Drogheda weather in September

In September, Drogheda sees average daytime highs of 17°C and overnight lows near 11°C, with 64 mm of rain across 11.3 wet days and about 12.5 hours of daylight. It is the 4th-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about 18°C in the first days to 15°C by the end. The sky is clear or mostly clear about 9% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 h 30 min at the start of September to 11 h 24 min by month's end. Set against the rest of the year, September is Drogheda's 9th-clearest and 8th-windiest month. For the whole year in context, see Drogheda's year-round climate.

Daytime high
17°
4th warmest
Overnight low
11°
9th coldest
Rainfall
64 mm
11.3 wet days
Daylight
12 h 24 min
6:07 AM – 6:32 PM
Cloud cover
77%
9th clearest
Wind
16 km/h
8th windiest
Solar energy
2.79 kWh/m²
Travel score
4.9
out of 10

Drogheda is town in County Louth, Ireland.

Density
2,982/km²
people per km²
Founded
1194

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 18°C in the first days to 15°C by the end.

A typical September day in Drogheda reaches about 17°C in the afternoon and slips back to 11°C overnight — a 6°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)
11812
21812
31812
41812
51812
61812
71712
81712
91711
101711
111711
121711
131711
141711
151711
161711
171711
181611
191611
201611
211611
221610
231610
241610
251610
261610
271610
281510
291510
301510

How September really feels in Drogheda

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.

Drogheda weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 6612.50.67.81.3
Feb / 5211.30.89.41.4
Mar10° / 5411.70.511.52.0
Apr12° / 5712.5013.72.9
May15° / 5912.7015.63.9
Jun17° / 11°6611.7016.75.0
Jul19° / 13°6713.8016.35.3
Aug19° / 13°7212.2014.65.4
Sep17° / 11°6411.3012.54.9
Oct14° / 7412.2010.33.5
Nov10° / 8013.20.18.32.2
Dec / 7212.20.47.31.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 9% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 14% of September, with mostly cloudy or overcast conditions the remaining 77%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12179
22278
32278
42278
52278
62278
72278
82476
92377
102377
112377
122377
132476
142575
152575
162575
172476
182476
192575
202476
212476
222476
232377
242278
252278
262278
272278
282278
292476
302476

Chance of precipitation in September

Any precipitation

Drogheda gets around 64 mm of rain over 11.3 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 41% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
133
233
333
434
534
635
735
836
936
1036
1136
1236
1336
1436
1536
1636
1736
1836
1936
2037
2137
2238
2338
2439
2540
2640
2741
2841
2941
3041

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 83% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
174233
275223
375223
476213
576213
677203
777203
878193
979183
1080182
1181172
1282162
1383161
1484151
1584151
1685141
1786140
1886140
1986140
2087130
2187130
2287130
2387130
2487130
2587130
2688120
2788120
2888120
2989110
3089110

Wind in September

Winds average 16 km/h in September.

Across September, daily wind ranges from about 15 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
115light breeze
215light breeze
316light breeze
416light breeze
516light breeze
616light breeze
716light breeze
816light breeze
916light breeze
1016light breeze
1116light breeze
1216light breeze
1316light breeze
1416light breeze
1516light breeze
1616light breeze
1716light breeze
1816light breeze
1916light breeze
2016light breeze
2116light breeze
2216light breeze
2316light breeze
2416light breeze
2516light breeze
2616light breeze
2717light breeze
2817light breeze
2917light breeze
3017light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 30 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 126 minutes over September. Sunrise moves from 5:40 AM to 6:33 AM, and sunset from 7:10 PM to 5:57 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.55:407:10
213.45:427:08
313.45:437:05
413.35:457:03
513.25:477:00
613.15:496:58
713.15:516:55
813.05:536:53
912.95:546:50
1012.95:566:48
1112.85:586:45
1212.76:006:43
1312.66:026:40
1412.66:036:37
1512.56:056:35
1612.46:076:32
1712.36:096:30
1812.36:116:27
1912.26:136:25
2012.16:146:22
2112.16:166:20
2212.06:186:17
2311.96:206:14
2411.86:226:12
2511.86:246:09
2611.76:256:07
2711.66:276:04
2811.56:296:02
2911.56:315:59
3011.46:335:57

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 2.79 kWh/m².

For context, solar energy here swings from a low near 0.51 kWh/m² to a high of 5.03 kWh/m² in June across the year — September's 2.79 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
13.4Moderate
23.3Moderate
33.3Moderate
43.2Moderate
53.2Moderate
63.2Moderate
73.1Moderate
83.1Moderate
93.0Moderate
103.0Moderate
113.0Moderate
122.9Moderate
132.9Moderate
142.9Moderate
152.8Moderate
162.8Moderate
172.8Moderate
182.7Moderate
192.7Moderate
202.6Moderate
212.6Moderate
222.5Moderate
232.5Moderate
242.5Moderate
252.4Moderate
262.4Moderate
272.3Moderate
282.3Moderate
292.2Moderate
302.2Moderate
Planning a trip in September

Is September a good time to visit Drogheda?

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

4.9
Sightseeing
4th-best month of the year
1.0
Beach & pool
4th-best month of the year

September is a reasonable time to visit Drogheda for sightseeing.

What to pack for Drogheda in September

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

In September, Drogheda sees daytime highs around 17°C and nights near 11°C. Worth packing: a warm layer and rain gear. About 11 days see rain.

a warm layerrain gear

Sea temperature near Drogheda in September

The nearest coast averages about 14°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 17 km away) 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.

5°10°15°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan9Bracing
Feb8Bracing
Mar8Bracing
Apr9Bracing
May11Bracing
Jun13Bracing
Jul15Bracing
Aug15Cool
Sep14Bracing
Oct13Bracing
Nov12Bracing
Dec10Bracing

UV index in Drogheda 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 Drogheda peaks around August 12 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 12UV 6Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr3Moderate
May5High
Jun5High
Jul5High
Aug6High
Sep4Moderate
Oct2Low
Nov1Low
Dec1Low
Location & terrain

Where is Drogheda?

Drogheda sits at 53.7°N, 6.3°W, 28 m above sea level, in Ireland. The nearest listed city is Balbriggan, 16 km away.

SwordsDundalkMalahideFinglasBlanchardstownDonaghmede

Topography around Drogheda

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

Within 3 km, the terrain around Drogheda has only modest variations in elevation — a maximum elevation change of 64 m around an average of 31 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 272 m; within 80 km, large variations in elevation — a maximum elevation change of 865 m.

The land around Drogheda is covered by grassland (40%), cropland (21%) and artificial surfaces (20%) within 3 km, grassland (48%), water (22%) and cropland (21%) within 16 km, and grassland (60%) and water (24%) within 80 km.

3 km
64 m
16 km
272 m
80 km
865 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Balbriggan 16 km · Navan 23 km · Swords 30 km · Dundalk 32 km · Malahide 32 km · Finglas 37 km · Blanchardstown 37 km · Donaghmede 38 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 Drogheda (53.7189°, -6.3478°, elevation 28 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).