September · Poland
Best time to visit Sopot in September Weather, crowds & prices
Weather in Sopot in September
Average temperature 16°C, 51 mm of rain, about 8 days with 6+ hours of sunshine and 78% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
4.5/10
Ranked #6 of 12 months
- Avg temp
- 16°C
- Rainfall
- 51 mm
- Humidity
- 78%
- Days with 6h+ sun
- 8
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
September in Sopot scores 4.5/10 for beach and coastal travel - an above-average month (#6 of 12). Expect around 16°C, 51 mm of rain, and roughly 8 days with 6+ hours of sunshine this month.
Sopot's wooden pier, spa parks and sandy beach make it the gentlest of Poland's Tricity resorts.
September in Sopot: expect compromises
Temperatures hover around 16°C (61°F) — the kind of month where neither heat nor cold forces the schedule.
Budget for roughly 51 mm of rain this month — a flexible day or two helps — with about 8 days with 6+ hours of sunshine and 12.4 hours of daylight to work around it.
That is 4.5/10 on the same scale — 6th of 12 months, versus 6.8/10 for the best month here.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
Expect mid-season pricing, and crowds are moderate.
If your dates are flexible, August is materially better in Sopot — 2.3 points higher on the same scale.
Frequently asked
- What is the weather like in Sopot in September?
- In September, Sopot averages 16°C, 51 mm of rain, and about 8 days with 6+ hours of sunshine. Its climate-comfort score is 4.5/10.
- Is September a good time to visit Sopot?
- September earns a 4.5/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Sopot in September?
- Expect about 51 mm of rain in September. Average humidity is 78% and there are about 8 days with 6+ hours of sunshine.
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