Your September weather guide
HotWeather in Rhodes in September
September is a good time to visit Rhodes if you want hot days and a sea that still feels warm. Average daytime highs are around 27°C, the sea is around 26°C, and there is about 1 rainy day across the month. For a UK traveller, that makes it a strong choice for swimming and spending time outdoors. The catch is that midday can still feel hot, and nights offer limited cooling.
Long-term climate averages for Rhodes Town, not a forecast · 1991-2020
Rhodes, month by month
Your snapshot
At a glance
The useful details for Rhodes Town.
- Average daytime high
- 26.8°C
- 9 in 10 days stay below 30°C
- Average night-time low
- 23.3°C
- coldest 10% of nights: 21°C or lower
- Compared with London
- +8.2°C
- London averages 18.6°C in September
- Sea temperature
- 26.2°C
- year to year: 25°C to 27°C
- Sunshine per day (est.)
- 11.3h
- 93% of 12.2 h of daylight
- Rainy days (1 mm+)
- 1
- 10 mm over the month
- Humidity
- 68%
- Days over 25°C
- 81%
- 9% over 30°C
- Record high 1991-2020
- 34.7°C
- 2020-09-09
- Record low 1991-2020
- 18.2°C
- 2008-09-23
- Flight from London
- ≈ 4 h 12 min
- 2778 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 3rd warmest month of the year in Rhodes and ranks 66th of 134 destinations we compare for September - see where else is hot in September. Within Greece it is 17th of 44 (Greece in September). Against London's average high of 18.6°C in September, Rhodes is 8.2°C warmer by day and 12.1°C warmer at night.
Daytime and night-time in September
The typical September day in Rhodes peaks at 26.8°C, but that is an average: the warmest 10% of days reach 29.8°C or more. About 81% of days top 25°C and 1 in 11 pass 30°C. Nights average 23.3°C; one night in ten drops to 21.4°C or lower, so pack a layer for evenings. Between 1991 and 2020 the hottest September day here reached 34.7°C (2020-09-09) and the coldest night 18.2°C (2008-09-23).
Rain in September
Dry (3 rainy days or fewer): about 1 days with 1 mm or more, 10 mm in total. Year to year it varies a lot - the wettest September was 2015 with 69 mm, the driest 1991 with 0 mm. Humidity averages 68%.
Sea temperature in September
The sea averages 26.2°C - warm enough to swim (22°c+). Depending on the year it ranges from 25.2°C to 27.2°C. For the warmest sea here, come in August (27.1°C).
Sunshine and daylight
Around 11.3 hours of sunshine a day (estimated from cloud cover), 12.2 hours of daylight: the sun rises about 06:50 and sets about 19:15 local time in mid-September. Average cloud cover is 8%.
Is September a good time to visit Rhodes?
Yes - it is one of the better months: hot days, little rain and long sunny days. The best months for Rhodes on our scoring are July, August, June; months averaging 25°C or more: Jun, Jul, Aug, Sep.
Summer warmth rather than cooler autumn weather
Pack for warm weather, not the start of a British autumn. Rhodes has an average daytime high of 26.8°C, compared with London's 18.6°C in September, so the difference should feel clear. Light, breathable clothes make sense, with shade breaks during the hottest part of the day. Days reaching 30°C account for 9% of the month, so stronger heat is possible without being the norm. The average night low is 23.3°C, which makes evenings suitable for light clothing but means bedrooms may stay warm; cooling is a useful feature to check when booking. September suits travellers who enjoy heat more than those looking for crisp evenings.
Good swimming conditions, with little rain to plan around
The sea is a clear reason to choose September: at an average 26.2°C, it is warm enough for swimming rather than just a quick dip. The year-to-year range of 25°C to 27°C also points to reliably warm water, though temperature alone cannot tell you how calm the sea will be. With about 11.3 hours of sunshine a day, there is plenty of scope to spend time outdoors without making midday your main activity window. Rain is unlikely to dominate a holiday, so waterproofs need not take priority over sun protection. Still, a dry monthly average is not a promise of uninterrupted sunshine, and keeping plans flexible remains sensible.
A little perspective
Rhodes 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 | 14.2°C | 11.3°C | 17.9°C | 5.2 | 107 | 12 | 0% |
| February | 14.3°C | 11.2°C | 16.9°C | 5.9 | 84 | 10 | 0% |
| March | 15.8°C | 12.5°C | 16.7°C | 7.1 | 53 | 7 | 0% |
| April | 18.1°C | 14.4°C | 17.3°C | 8.6 | 31 | 6 | 1% |
| May | 21.8°C | 17.9°C | 19.8°C | 10.5 | 16 | 3 | 8% |
| Junebest | 25.7°C | 21.7°C | 22.6°C | 13.4 | 2 | 0 | 57% |
| Julybest | 28.4°C | 24.3°C | 25.2°C | 14.1 | 1 | 0 | 97% |
| Augustbest | 29.2°C | 25.3°C | 27.1°C | 13.2 | 0 | 0 | 100% |
| SeptemberSelected | 26.8°C | 23.3°C | 26.2°C | 11.3 | 10 | 1 | 81% |
| October | 23.3°C | 20.0°C | 24.1°C | 8.2 | 47 | 5 | 24% |
| November | 19.2°C | 16.1°C | 21.6°C | 6.1 | 73 | 8 | 1% |
| December | 15.8°C | 13.0°C | 19.3°C | 5.1 | 113 | 12 | 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.
A little more detail
Rhodes in September FAQs
Plain answers, grounded in the averages.
Is Rhodes hot in September?
Rhodes is hot in September: the average daytime high is 26.8°C and nights average 23.3°C. About 81% of September days reach 25°C or more.
Can you swim in the sea in Rhodes in September?
The sea around Rhodes averages 26.2°C in September, which is warm enough for most people to swim comfortably. Between 1991 and 2020 it ranged from 25°C to 27°C depending on the year.
How much does it rain in Rhodes in September?
Rhodes sees about 1 rainy days (1 mm or more) and 10 mm of rain in a typical September. The wettest September between 1991 and 2020 was 2015 (69 mm) and the driest was 1991 (0 mm).
How sunny is Rhodes in September?
Rhodes gets around 11.3 hours of sunshine a day in September out of 12.2 hours of daylight (estimated from average cloud cover).
How does Rhodes compare with the UK in September?
Rhodes is on average 8.2°C warmer than London by day in September (26.8°C against 18.6°C).
What is the hottest September on record in Rhodes?
Between 1991 and 2020 the hottest September day in Rhodes reached 34.7°C on 2020-09-09, and the coldest night dropped to 18.2°C on 2008-09-23.
Is Rhodes hot enough for a beach holiday in September?
Yes. Days reach 25°C on 81% of occasions, and the average daytime high is 26.8°C. That supports a holiday centred on swimming and relaxing outside, with shade and sun protection still important rather than treating September as a cool month.
Will I need a jacket in the evenings?
A heavy jacket is unlikely to be useful with an average night low of 23.3°C. Light clothing should suit many evenings, though a thin extra layer is sensible if you feel the cold. Warm nights are more typical than chilly ones.
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 Rhodes (Rhodes Town). Sea temperature from the nearest 5 km sea cell, 1.2 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