Capri (Isle of Capri) weather in September
Italy

September in Capri: warm, rainy — an excellent time to visit.
#4 of 12 months in Capri · #472 of 1383 destinations to visit in September · comfort 85/100 (tier A)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Capri in September
September on Capri is still swimming weather — the forum puts the sea around 25°C and posters report getting in the water on every September trip unless it was actually raining. Shorts by day, a light jacket or sweater in the evening once the air eases back from a high near 24°C. On crowds it's a month of two halves: the island is packed daily from mid-June to early September, then late September thins noticeably, and weekday day-trips stay quiet because local day-trippers come mainly at weekends. One local caution — jellyfish turn up some years and have been exceptionally bad in a few; beach clubs keep sting spray.
Other months in Capri
Capri's forum is unanimous that July means heat and real crowds on the main island — regulars consistently point toward Anacapri instead for a noticeably calmer version of the same views. The ferry from Sorrento gets specific mention too: buy a return ticket and queue about 30 minutes early, or risk being stuck for the next crossing.
Add your own note from Capri's card on the map.
Capri climate normals — September
| Daytime high | 26°C / 79°F | 🌤 warm |
|---|---|---|
| Nighttime low | 21°C / 69°F | |
| Feels like (high) | 27°C / 81°F | |
| Sea temperature | 25°C / 77°F | 🙂 pleasant |
| Rainfall | 113 mm / 4.4 in | 🌧 rainy |
| Rainy days | 9 days | |
| Humidity | 71% | 💧 humid |
| Dew point | 17°C / 63°F | |
| Sunshine | 10.5 h/day | |
| Daylight | 12.5 h | |
| Wind | 16 km/h / 10 mph | |
| Air quality (US AQI) | 59 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Capri in September
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Peak crowdsDay-tripper hours, Summer holidays in Italy, school holidays in 2 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Capri's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherCapri's weather peaks June–August, best around July.
Best weatherFair weatherToughest weather
What's on in Capri in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Rule
Landing fee on arrival
1 Jan – 31 DecEveryone who is not a resident pays a landing contribution on arrival: about €5 a person from April to October and €2.50 the rest of the year. On a scheduled ferry or hydrofoil it is inside the ticket; on a private boat it is not. Source ↗
- Rule
No visitor cars on the island
15 Mar – 5 Nov · usuallyClosuresNon-resident vehicles are barred from the island from around Easter to early November, which is why everything moves by funicular, open taxi and the Anacapri bus. Bringing a car is not a decision you get to make. Source ↗
- Opening
Blue Grotto access
15 Apr – 15 Oct · usuallyClosuresThe cave entrance is barely a metre high at low tide, so a boatman can only lie you flat and row you through when the sea is calm enough; rough winter seas suspend the trips for days or weeks at a stretch even though the site itself has no fixed closing date. Source ↗
- Season
Day-tripper hours
15 May – 30 Sep · usuallyCruise seasonCrowdedBoats from Naples and Sorrento land thousands of people between ten and four, and the funicular queue in the port is the proof. The island changes character entirely after the last hydrofoil.
- Season
Sea warm enough to swim
15 Jun – 10 Oct · usuallyThere is almost no beach, so swimming means a ladder off a rock platform at Marina Piccola or the Faraglioni. The water stays comfortable through September and into October.
- Festival
Settembrata Anacaprese
8–18 Sep · usuallyHarvestAnacapri's ten-day harvest festival in September, with the villages competing over food stalls and a procession. It happens after the day boats have thinned and is aimed at residents. Source ↗
Nearby, and something's on
Within 300 km of Capri — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Capri?
Capri in September — FAQ
- Is September a good time to visit Capri?
- September in Capri: warm, rainy — an excellent time to visit. It ranks #4 of 12 months for Capri on SeasonMap's comfort score (85/100).
- What is the weather like in Capri in September?
- In September, Capri averages a daily high of 26°C and a low of 20.5°C, with about 112.8 mm of rain over roughly 9 rainy days.
- What is the air quality in Capri in September?
- Capri has a mean US Air Quality Index of about 59 in September.
Other months in Capri
Compare Capri in September
Warmer or cooler than Capri in September
Similar destinations in Southern Europe — September
Within 300 km: Naples' San Gennaro on 19 Sep, and Matera's Grape then olive harvest around 10 Sep – 20 Nov.