May · Greece
Best time to visit Nisyros in May Weather, crowds & prices
Weather in Nisyros in May
Average temperature 18°C, 13 mm of rain, about 31 days with 6+ hours of sunshine and 80% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
May score
7.6/10
Ranked #6 of 12 months
- Avg temp
- 18°C
- Rainfall
- 13 mm
- Humidity
- 80%
- Days with 6h+ sun
- 31
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
May in Nisyros scores 7.6/10 for beach and coastal travel - an above-average month (#6 of 12). Expect around 18°C, 13 mm of rain, and roughly 31 days with 6+ hours of sunshine this month.
Nisyros is a small Dodecanese volcano island, with a steaming crater at Stefanos and a whitewashed port.
May in Nisyros: strong conditions, 6th of 12
Temperatures hover around 18°C (65°F) — the kind of month where neither heat nor cold forces the schedule.
At just 13 mm for the month, rain will not shape your plans; you get about 31 days with 6+ hours of sunshine and 14.1 hours of daylight.
That is 7.6/10 on the same scale — 6th of 12 months, versus 9.8/10 for the best month here.
Pack layers you can shed by midday plus one warm layer for the evening.
Expect mid-season pricing, and crowds are moderate.
If your dates are flexible, July is materially better in Nisyros — 2.2 points higher on the same scale.
Frequently asked
- What is the weather like in Nisyros in May?
- In May, Nisyros averages 18°C, 13 mm of rain, and about 31 days with 6+ hours of sunshine. Its climate-comfort score is 7.6/10.
- Is May a good time to visit Nisyros?
- May earns a 7.6/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Nisyros in May?
- Expect about 13 mm of rain in May. Average humidity is 80% and there are about 31 days with 6+ hours of sunshine.
Curated in Nisyros
Tickets & experiences
Things to do in Nisyros
Nisyros, Greece. Live activities and tours from GetYourGuide, matched to this destination.