Your September weather guide
WarmWeather in Corfu in September
Yes - Corfu in September is a good choice for warm days and swimming, provided you can accept some wet weather. Average daytime highs of 24.4°C are comfortable for being outdoors, while the sea stays inviting at 24.6°C. The catch is rain: expect about 8 rainy days across the month, so an entirely dry holiday is not something to bank on. It suits travellers who want warmth without relying on intense heat.
Long-term climate averages for Corfu Town, not a forecast · 1991-2020
Corfu, month by month
Your snapshot
At a glance
The useful details for Corfu Town.
- Average daytime high
- 24.4°C
- 9 in 10 days stay below 28°C
- Average night-time low
- 20.6°C
- coldest 10% of nights: 18°C or lower
- Compared with London
- +5.8°C
- London averages 18.6°C in September
- Sea temperature
- 24.6°C
- year to year: 23°C to 26°C
- Sunshine per day (est.)
- 8.1h
- 66% of 12.2 h of daylight
- Rainy days (1 mm+)
- 8
- 110 mm over the month
- Humidity
- 73%
- Days over 25°C
- 37%
- 2% over 30°C
- Record high 1991-2020
- 32.6°C
- 2020-09-08
- Record low 1991-2020
- 13.8°C
- 2007-09-07
- Flight from London
- ≈ 3 h 18 min
- 2015 km, short-haul (estimate for a direct flight)
Records are observed extremes within 1991-2020, not typical holiday conditions. Warm-day percentages are shares of days, not day counts.
How September compares
September is the 4th warmest month of the year in Corfu and ranks 100th of 134 destinations we compare for September - see where else is hot in September. Within Greece it is 33rd of 44 (Greece in September). Against London's average high of 18.6°C in September, Corfu is 5.8°C warmer by day and 9.4°C warmer at night.
Daytime and night-time in September
The typical September day in Corfu peaks at 24.4°C, but that is an average: the warmest 10% of days reach 27.8°C or more. Roughly 1 in 3 days top 25°C and 1 in 43 pass 30°C. Nights average 20.6°C; one night in ten drops to 18.2°C or lower, so pack a layer for evenings. Between 1991 and 2020 the hottest September day here reached 32.6°C (2020-09-08) and the coldest night 13.8°C (2007-09-07).
Rain in September
Wet (more than 8 rainy days): about 8 days with 1 mm or more, 110 mm in total. Year to year it varies a lot - the wettest September was 2002 with 423 mm, the driest 2018 with 7 mm. Humidity averages 73%.
Sea temperature in September
The sea averages 24.6°C - warm enough to swim (22°c+). Depending on the year it ranges from 23.4°C to 26.0°C. For the warmest sea here, come in August (25.9°C).
Sunshine and daylight
Around 8.1 hours of sunshine a day (estimated from cloud cover), 12.2 hours of daylight: the sun rises about 07:22 and sets about 19:50 local time in mid-September. Average cloud cover is 34%.
Is September a good time to visit Corfu?
Yes - it is one of the better months: warm days, manageable rain and long sunny days. The best months for Corfu on our scoring are July, August, June; months averaging 25°C or more: Jul, Aug.
Warm enough for swimming, without constant heat
Pack mainly light clothes, but leave room for a light layer for cooler evenings. Average night-time lows are 20.6°C, so evenings generally stay mild, although cooler nights can reach 18.2°C or below. Daytime warmth is usually manageable rather than fierce, but humidity of 73% can make it feel sticky; loose clothing is a sensible choice. Keep more energetic plans away from the hottest part of the day if you dislike heat. The sea is a strong reason to choose September: its average temperature is comfortably in swimming territory, though that does not guarantee calm water or suitable swimming conditions every day.
Allow for rain rather than planning around clear skies
Rain is the main compromise, not a lack of warmth. Corfu has a wet September overall, so bring a lightweight waterproof and keep your outdoor plans flexible. About 8.1 hours of sunshine within 12.2 hours of daylight still gives the month plenty of scope for time outside, but those averages are not a promise for any particular holiday. Nor does a rainy day necessarily mean the whole day is lost - the figures do not tell you how long rain lasts. If dependable dry weather is your priority, September is a less convincing choice; June, July and August rate better overall for weather here.
A little perspective
Corfu through the year
September is highlighted. See how it compares with the rest of the year.
| Month | Day | Night | Sea | Sun/day | Rain mm | Rainy days | Days 25°C+ |
|---|---|---|---|---|---|---|---|
| January | 12.1°C | 8.6°C | 15.4°C | 4.5 | 129 | 11 | 0% |
| February | 12.3°C | 8.6°C | 14.5°C | 4.9 | 123 | 11 | 0% |
| March | 14.0°C | 10.0°C | 14.6°C | 5.8 | 111 | 11 | 0% |
| April | 16.6°C | 12.3°C | 16.0°C | 6.5 | 76 | 10 | 1% |
| May | 20.4°C | 16.2°C | 19.3°C | 8.0 | 51 | 7 | 3% |
| Junebest | 24.5°C | 20.2°C | 22.7°C | 10.9 | 25 | 4 | 39% |
| Julybest | 27.1°C | 22.7°C | 24.7°C | 12.9 | 15 | 3 | 85% |
| Augustbest | 27.9°C | 23.5°C | 25.9°C | 11.8 | 20 | 3 | 94% |
| SeptemberSelected | 24.4°C | 20.6°C | 24.6°C | 8.1 | 110 | 8 | 37% |
| October | 20.9°C | 17.2°C | 22.4°C | 5.8 | 141 | 10 | 3% |
| November | 17.0°C | 13.6°C | 19.9°C | 4.1 | 214 | 13 | 0% |
| December | 13.3°C | 10.1°C | 17.3°C | 3.9 | 191 | 14 | 0% |
Day = average daytime high, night = average night-time low, 1991-2020.Sun is hours per day; rainy days count 1 mm or more.
Day, night and sea
Monthly average temperatures, 1991-2020
- Day
- Night
- Sea
Best months here
On warmth, low rainfall and sunshine, start with these.
Keep exploring
Similar in September
Closest matches on daytime temperature, sea temperature and sunshine, in other countries.
Spain · 24°C by day · sea 25°C
Menorca
Italy · 24°C by day · sea 24°C
Sorrento
Italy · 24°C by day · sea 24°C
Amalfi Coast
Croatia · 24°C by day · sea 24°C
Dubrovnik
Italy · 25°C by day · sea 24°C
Puglia
A little more detail
Corfu in September FAQs
Plain answers, grounded in the averages.
Is Corfu hot in September?
Corfu is warm in September: the average daytime high is 24.4°C and nights average 20.6°C. Roughly 1 in 3 September days reach 25°C.
Can you swim in the sea in Corfu in September?
The sea around Corfu averages 24.6°C in September, which is warm enough for most people to swim comfortably. Between 1991 and 2020 it ranged from 23°C to 26°C depending on the year.
How much does it rain in Corfu in September?
Corfu sees about 8 rainy days (1 mm or more) and 110 mm of rain in a typical September. The wettest September between 1991 and 2020 was 2002 (423 mm) and the driest was 2018 (7 mm).
How sunny is Corfu in September?
Corfu gets around 8.1 hours of sunshine a day in September out of 12.2 hours of daylight (estimated from average cloud cover).
How does Corfu compare with the UK in September?
Corfu is on average 5.8°C warmer than London by day in September (24.4°C against 18.6°C).
What is the hottest September on record in Corfu?
Between 1991 and 2020 the hottest September day in Corfu reached 32.6°C on 2020-09-08, and the coldest night dropped to 13.8°C on 2007-09-07.
How much warmer is Corfu than London in September?
Corfu's average daytime high is 24.4°C, compared with 18.6°C in London - a difference of 5.8°C. That is a noticeable step up in warmth for a UK traveller, although it does not mean every day will feel hot.
Is September hot enough for a beach holiday?
Yes, if you prefer warmth to strong heat. Days reach 25°C around 37% of the time, while only 2% reach 30°C. With the sea averaging 24.6°C, swimming is a reasonable expectation, but you should allow for rainy days.
Should I go early or late in September?
These monthly figures do not establish a weather advantage for early or late September. Treat either as a warm but potentially wet holiday, and avoid choosing your dates on the assumption that a particular part of the month will stay dry.
About these averages
ERA5-Land climate reanalysis via Open-Meteo (11 km grid) and NOAA Coral Reef Watch 5 km sea temperatures, 1991-2020
Averages computed from daily values at Corfu (Corfu Town). Sea temperature from the nearest 5 km sea cell, 0.4 km from that point. Sunshine hours are estimated from average cloud cover.Records are the highest and lowest daily values in that 30-year period, not all-time records. These are climate averages, not a forecast for your trip. How we measure holiday weather
- Hot · 25°C+
- Warm · 20°C to below 25°C
- Mild · 15°C to below 20°C
- Cool · below 15°C