L'Aquila weather in September

In September, L'Aquila sees average daytime highs of 20°C and overnight lows near 10°C, with 74 mm of rain across 11 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 22°C in the first days to 18°C by the end. The sky is clear or mostly clear about 38% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 hours at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is L'Aquila's 4th-clearest and 8th-windiest month. For the whole year in context, see L'Aquila's year-round climate.

Daytime high
20°
4th warmest
Overnight low
10°
9th coldest
Rainfall
74 mm
11 wet days
Daylight
12 h 18 min
5:52 AM – 6:09 PM
Cloud cover
51%
4th clearest
Wind
5 km/h
8th windiest
Solar energy
4.39 kWh/m²
Travel score
6.3
out of 10
Air quality
Moderate
PM2.5 10.1 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

Highs ease over the month, from about 22°C in the first days to 18°C by the end.

A typical September day in L'Aquila reaches about 20°C in the afternoon and slips back to 10°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 24°C. Set against its neighbours, September runs about 5°C cooler than August and about 4°C warmer than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12312
22212
32212
42212
52212
62211
72111
82111
92111
102111
112111
122111
132011
142010
152010
162010
172010
182010
191910
201910
211910
22199
23199
24199
25199
26189
27189
28189
29189
30189

How September really feels in L'Aquila

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.

L'Aquila weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -3°7210.27.69.30.0
Feb / -3°7110.2710.30.2
Mar / -0°9112.96.211.61.7
Apr12° / 9414.32.413.13.0
May17° / 8513.30.114.45.0
Jun21° / 11°6010.10156.8
Jul24° / 14°457.8014.87.8
Aug25° / 14°408.6013.77.6
Sep20° / 10°7411012.36.3
Oct16° / 8111.10.410.84.8
Nov10° / 10712.23.29.62.1
Dec / -1°9711.86.690.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 22% of September, with mostly cloudy or overcast conditions the remaining 40%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17129
27030
36931
46733
56733
66634
76535
86436
96436
106238
116139
126139
136040
146040
155941
165842
175842
185743
195644
205644
215644
225545
235545
245545
255545
265545
275446
285446
295446
305446

Chance of precipitation in September

Any precipitation

L'Aquila gets around 74 mm of rain over 11 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 39% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
135
235
335
436
536
636
736
836
937
1037
1137
1238
1338
1438
1539
1639
1739
1839
1939
2039
2139
2238
2338
2437
2537
2637
2736
2836
2936
3036

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 87% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
171281
273261
376240
478220
580200
682180
783170
884160
985150
1086140
1186140
1287130
1387130
1487130
1587130
1687130
1788120
1888120
1989110
2089110
2190100
2290100
239190
249280
259280
269370
279460
289550
299550
309640

Wind in September

Winds average 5 km/h in September.

Across September, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm

Sunrise & sunset in September

DaylightNight

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

Days shrink by about 84 minutes over September. Sunrise moves from 5:36 AM to 6:08 AM, and sunset from 6:36 PM to 5:44 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.05:366:36
213.05:376:35
312.95:386:33
412.95:396:31
512.85:406:29
612.85:416:27
712.75:426:26
812.75:446:24
912.65:456:22
1012.65:466:20
1112.55:476:18
1212.55:486:17
1312.45:496:15
1412.45:506:13
1512.35:516:11
1612.35:526:09
1712.25:536:07
1812.25:546:05
1912.15:566:04
2012.15:576:02
2112.05:586:00
2212.05:595:58
2311.96:005:56
2411.96:015:54
2511.86:025:53
2611.86:035:51
2711.76:045:49
2811.76:065:47
2911.66:075:45
3011.66:085:44

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.39 kWh/m².

For context, solar energy here swings from a low near 1.61 kWh/m² to a high of 6.73 kWh/m² in July across the year — September's 4.39 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.1Bright
25.1Bright
35.0Bright
45.0Bright
54.9Bright
64.9Bright
74.8Bright
84.8Bright
94.7Bright
104.7Bright
114.6Bright
124.5Bright
134.5Bright
144.5Bright
154.4Bright
164.4Bright
174.3Bright
184.3Bright
194.2Bright
204.2Bright
214.1Bright
224.1Bright
234.0Bright
244.0Bright
254.0Moderate
263.9Moderate
273.9Moderate
283.8Moderate
293.8Moderate
303.7Moderate
Planning a trip in September

Is September a good time to visit L'Aquila?

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

6.3
Sightseeing
4th-best month of the year
3.3
Beach & pool
4th-best month of the year

September is a reasonable time to visit L'Aquila for sightseeing.

What to pack for L'Aquila in September

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

In September, L'Aquila sees daytime highs around 20°C and nights near 10°C. Worth packing: rain gear. About 11 days see rain.

rain gear

Sea temperature near L'Aquila in September

The nearest coast averages about 23°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 67 km away) is warmest in August at about 26°C and coldest in February near 13°C.

It's comfortable for a long swim from May 31 to Oct 15 — about 4.5 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb13Bracing
Mar13Bracing
Apr14Bracing
May18Cool
Jun22Refreshing
Jul25Warm
Aug26Warm
Sep23Refreshing
Oct20Cool
Nov17Cool
Dec15Cool

UV index in L'Aquila in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in L'Aquila peaks around July 16 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highVery highHighModerateLowJul 16UV 10Dec 23UV 1
UV index (midday)Level
Jan1Low
Feb3Moderate
Mar6High
Apr5High
May7Very high
Jun9Very high
Jul10Extreme
Aug9Very high
Sep6High
Oct4Moderate
Nov2Moderate
Dec1Low
Location & terrain

Where is L'Aquila?

L'Aquila sits at 42.4°N, 13.4°E, 714 m above sea level, in Italy. The nearest listed city is Avezzano, 36 km away.

Topography around L'Aquila

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

Within 3 km, the terrain around L'Aquila has significant variations in elevation — a maximum elevation change of 473 m around an average of 735 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,014 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,846 m.

The land around L'Aquila is covered by trees (37%) and artificial surfaces (34%) within 3 km, grassland (45%) and trees (43%) within 16 km, and trees (59%) and grassland (21%) within 80 km.

3 km
473 m
16 km
2,014 m
80 km
2,846 m
treesshrubsgrasslandcroplandartificial surfaceswater
September weather nearby: Avezzano 36 km · Teramo 42 km · Rieti 45 km · Sulmona 55 km · Ascoli Piceno 58 km · Roseto degli Abruzzi 62 km · Chieti 63 km · Montesilvano 64 km

Italy travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F / L
230 V · 50 Hz
Prices
≈ 69% of US
price level, 2025
GDP per capita
$43,309
2025
Happiness
6.6 / 10
World Happiness, 2025
Safe drinking water
97%
of population, 2024
Homicide rate
0.6
per 100k, 2023
Road deaths
5.3
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 513
Religion
Christian 81%unaffiliated 13%Muslim 5%other 1%

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 L'Aquila (42.3505°, 13.3995°, elevation 714 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).