Capri weather in September

In September, Capri sees average daytime highs of 24°C and overnight lows near 22°C, with 74 mm of rain across 7.6 wet days and about 12.3 hours of daylight. It is the 3rd-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 25°C in the first days to 22°C by the end. The sky is clear or mostly clear about 61% of the time in September, and the air most often feels humid.

Daylight stretches from about 12 h 54 min at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Capri's 4th-clearest and 8th-windiest month. For the whole year in context, see Capri's year-round climate.

Daytime high
24°
3rd warmest
Overnight low
22°
10th coldest
Rainfall
74 mm
7.6 wet days
Daylight
12 h 18 min
5:49 AM – 6:05 PM
Cloud cover
36%
4th clearest
Wind
14 km/h
8th windiest
Solar energy
4.8 kWh/m²
Travel score
7.7
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 25°C in the first days to 22°C by the end.

A typical September day in Capri reaches about 24°C in the afternoon and slips back to 22°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 25°C. Set against its neighbours, September runs about 2°C cooler than August and about 3°C warmer than October.

15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12523
22523
32523
42523
52523
62523
72423
82423
92423
102422
112422
122422
132422
142422
152422
162422
172322
182322
192321
202321
212321
222321
232321
242321
252321
262321
272221
282221
292220
302220

Capri weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan13° / 11°12012.29.43.5
Feb13° / 11°9311.110.43.4
Mar14° / 12°889.711.74.1
Apr16° / 14°588.3135.2
May19° / 17°385.614.27.1
Jun23° / 21°182.814.88.6
Jul25° / 24°101.614.69.1
Aug26° / 24°172.413.68.7
Sep24° / 22°747.612.37.7
Oct21° / 19°1009.510.96.8
Nov17° / 16°15913.19.75.3
Dec14° / 13°14213.49.24.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 61% 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 23%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18614
28515
38317
48317
58218
68119
78020
88020
97921
107822
117822
127822
137723
147723
157624
167624
177624
187624
197624
207525
217525
227525
237327
247327
257327
267228
277228
287129
297129
307129

Chance of precipitation in September

Any precipitation

Capri gets around 74 mm of rain over 7.6 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 25% and peaks near 29% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
116
217
318
419
520
621
721
822
923
1024
1124
1225
1326
1426
1527
1627
1728
1828
1929
2029
2129
2229
2329
2429
2529
2629
2729
2829
2929
3029

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the humid band about 32% of days. Sticky, muggy-or-worse air turns up on roughly 40% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1462536281
2472636260
3582736240
4592836210
5592937190
66103037170
76113037160
86123137140
96123238120
107133237110
117143237100
12715323690
13816323680
14817333580
15918333470
16919333270
171020333160
181021333060
191123332850
201124332750
211225332640
221226332440
231327342340
241328342230
251329342130
261429352020
271430351920
281430361820
291530361810
301531361710

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
413light breeze
513light breeze
613light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 54 min 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 78 minutes over September. Sunrise moves from 5:34 AM to 6:04 AM, and sunset from 6:31 PM to 5:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.95:346:31
212.95:356:29
312.95:366:28
412.85:376:26
512.85:386:24
612.75:396:23
712.75:406:21
812.65:416:19
912.65:426:17
1012.55:436:16
1112.55:446:14
1212.45:456:12
1312.45:466:11
1412.45:476:09
1512.35:486:07
1612.35:496:05
1712.25:506:04
1812.25:516:02
1912.15:526:00
2012.15:535:58
2112.05:545:57
2212.05:555:55
2311.95:565:53
2411.95:585:51
2511.95:595:50
2611.86:005:48
2711.86:015:46
2811.76:025:44
2911.76:035:43
3011.66:045:41

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.8 kWh/m².

For context, solar energy here swings from a low near 1.77 kWh/m² to a high of 7.25 kWh/m² in June across the year — September's 4.8 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.6Bright
25.5Bright
35.5Bright
45.4Bright
55.3Bright
65.3Bright
75.2Bright
85.2Bright
95.1Bright
105.1Bright
115.0Bright
125.0Bright
134.9Bright
144.9Bright
154.8Bright
164.8Bright
174.7Bright
184.7Bright
194.6Bright
204.6Bright
214.5Bright
224.5Bright
234.4Bright
244.4Bright
254.3Bright
264.3Bright
274.3Bright
284.2Bright
294.2Bright
304.1Bright
Planning a trip in September

Hazard calendar for Capri

In seasonPeak

In September, Capri sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Capri's rainy season runs September–March, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit Capri?

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

7.7
Sightseeing
4th-best month of the year
6.2
Beach & pool
4th-best month of the year

September is one of the better times to visit Capri for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Capri in September

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

In September, Capri sees daytime highs around 24°C and nights near 22°C. Worth packing: light clothes and sun protection. About 8 days see rain.

light clothessun protection

Sea temperature near Capri in September

The nearest coast averages about 24°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 13 km away) is warmest in August at about 26°C and coldest in February near 14°C.

It's comfortable for a long swim from May 27 to Nov 6 — about 5.4 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan15Cool
Feb14Bracing
Mar14Bracing
Apr16Cool
May19Cool
Jun23Refreshing
Jul25Warm
Aug26Warm
Sep24Warm
Oct22Refreshing
Nov19Cool
Dec17Cool

UV index in Capri 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 Capri peaks around July 17 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 1 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateVery highHighModerateLowJul 17UV 9Dec 21UV 1
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr4Moderate
May7High
Jun8Very high
Jul10Very high
Aug8Very high
Sep6High
Oct4Moderate
Nov2Moderate
Dec1Low

Air quality in Capri 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 Capri is worst in April — around 16 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 916 µg/m³Dec 1110 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb14Moderate
Mar16Moderate
Apr16Moderate
May14Moderate
Jun13Moderate
Jul11Good
Aug12Good
Sep12Good
Oct12Good
Nov10Good
Dec10Good
Location & terrain

Where is Capri?

Capri sits at 40.6°N, 14.2°E, 0 m above sea level, in Italy. The nearest listed city is Sorrento, 14 km away.

Topography around Capri

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

Within 3 km, the terrain around Capri has significant variations in elevation — a maximum elevation change of 568 m around an average of 55 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 568 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,799 m.

The land around Capri is covered by water (74%) and trees (20%) within 3 km, water (95%) within 16 km, and water (57%) and trees (28%) within 80 km.

3 km
568 m
16 km
568 m
80 km
1,799 m
treesshrubsgrasslandcroplandartificial surfaceswater
September weather nearby: Sorrento 14 km · Positano 22 km · Castellammare di Stabia 27 km · Gragnano 28 km · Torre del Greco 29 km · Torre Annunziata 29 km · Posillipo 29 km · Bagnoli 30 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 Capri (40.5507°, 14.2426°, elevation 0 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).