September · Greece
Best time to visit Lemnos in September Weather, crowds & prices
Weather in Lemnos in September
Average temperature 23°C, 25 mm of rain, about 29 days with 6+ hours of sunshine and 65% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
9.9/10
Ranked #4 of 12 months
- Avg temp
- 23°C
- Rainfall
- 25 mm
- Humidity
- 65%
- Days with 6h+ sun
- 29
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$$ · Peak Season Rates ($$$)
September in Lemnos scores 9.9/10 for beach and coastal travel - an above-average month (#4 of 12). Expect around 23°C, 25 mm of rain, and roughly 29 days with 6+ hours of sunshine this month.
Lemnos is a wide, wind-swept northern Aegean island with sandy beaches, dunes and the harbour town of Myrina.
September in Lemnos — one of the year's strongest windows (4th)
September averages 23°C (73°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
Expect 25 mm of rain — occasional showers rather than washed-out days — alongside about 29 days with 6+ hours of sunshine and 12.4 daylight hours.
A 9.9/10 puts this among the year's best months in Lemnos (4th of 12); only June scores higher, at 10/10.
Pack light clothing, swimwear and real sun protection.
Plan for peak pricing, with crowds are moderate.
Frequently asked
- What is the weather like in Lemnos in September?
- In September, Lemnos averages 23°C, 25 mm of rain, and about 29 days with 6+ hours of sunshine. Its climate-comfort score is 9.9/10.
- Is September a good time to visit Lemnos?
- September earns a 9.9/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Lemnos in September?
- Expect about 25 mm of rain in September. Average humidity is 65% and there are about 29 days with 6+ hours of sunshine.
Curated in Lemnos
Tickets & experiences
Things to do in Lemnos
Lemnos, Greece. Live activities and tours from GetYourGuide, matched to this destination.