January in Kalymnos — off-season conditions
Hardest · 4.9/10Temperatures hover around 14°C (57°F) — the kind of month where neither heat nor cold forces the schedule.
104 mm of rain makes this a wet month here, though with about 26 days with 6+ hours of sunshine there is still bright weather between the fronts.
That is 4.9/10 on the same scale — 12th of 12 months, versus 10/10 for the best month here.
Budget for low-season pricing, and crowds are light for this destination.
Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella.
If your dates are flexible, June is materially better in Kalymnos — 5.1 points higher on the same scale.
February in Kalymnos — middling scores, decent value
Trade-offs · 5.9/10Temperatures hover around 13°C (55°F) — the kind of month where neither heat nor cold forces the schedule.
Budget for roughly 52 mm of rain this month — a flexible day or two helps — with about 25 days with 6+ hours of sunshine and 10.8 hours of daylight to work around it.
That is 5.9/10 on the same scale — 10th of 12 months, versus 10/10 for the best month here.
Expect low-season pricing, and crowds are light for this destination.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
If your dates are flexible, June is materially better in Kalymnos — 4.1 points higher on the same scale.
March in Kalymnos — middling scores, decent value
Trade-offs · 6.2/10March averages 14°C (57°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Expect 40 mm of rain — occasional showers rather than washed-out days — alongside about 30 days with 6+ hours of sunshine and 12 daylight hours.
It scores 6.2/10 here, 9th of 12 months, against 10/10 in the destination's best month.
Plan for low-season pricing, with crowds are light for this destination.
Pack layers you can shed by midday plus one warm layer for the evening.
Flexible dates? June scores 3.8 points higher here — enough to change the trip.
April in Kalymnos — reliably good (7th best month)
Good · 7.4/10Temperatures hover around 17°C (63°F) — the kind of month where neither heat nor cold forces the schedule.
With around 25 mm of rain, any showers tend to pass through rather than settle in; about 29 days with 6+ hours of sunshine and 13.2 hours of daylight fill the rest.
That is 7.4/10 on the same scale — 7th of 12 months, versus 10/10 for the best month here.
Expect mid-season pricing, and crowds are moderate.
Pack layers you can shed by midday plus one warm layer for the evening.
If your dates are flexible, June is materially better in Kalymnos — 2.6 points higher on the same scale.
May ranks 6th of 12 for Kalymnos — one of the best windows
Best window · 8.9/10May averages 21°C (69°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
Expect 19 mm of rain — occasional showers rather than washed-out days — alongside about 30 days with 6+ hours of sunshine and 14.2 daylight hours.
A 8.9/10 puts this among the year's best months in Kalymnos (6th of 12); only June scores higher, at 10/10.
Figure on mid-season pricing, with crowds are moderate.
Pack light clothing, swimwear and real sun protection.
June: the best month of the year in Kalymnos
Best window · 10/10With 25°C (77°F) on average, June delivers classic beach weather: plenty of time in the water, with beach and boat plans rarely disrupted by cold.
At just 11 mm for the month, rain will not shape your plans; you get about 30 days with 6+ hours of sunshine and 14.7 hours of daylight.
On our climate-comfort scale this is the top-ranked month of the year for Kalymnos at 10/10 — the reference point every other month on this page is measured against.
Budget for peak pricing, and crowds are moderate. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack light clothing, swimwear and real sun protection.
July in Kalymnos — one of the year's strongest windows (2nd)
Best window · 10/10Days in July average 28°C (82°F) — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
At just 0 mm for the month, rain will not shape your plans; you get about 31 days with 6+ hours of sunshine and 14.4 hours of daylight.
On our climate-comfort scale this is one of the strongest months of the year for Kalymnos at 10/10 (2nd of 12), just behind June at 10/10.
Expect peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.
August is one of the strongest months in Kalymnos (3rd)
Best window · 10/10August averages 27°C (81°F), so the practical pattern is early mornings, a long midday break, and evenings back outside.
Rain is a non-issue at 1 mm for the month, with about 31 days with 6+ hours of sunshine and 13.5 hours of daylight to work with.
A 10/10 puts this among the year's best months in Kalymnos (3rd of 12); only June scores higher, at 10/10.
Plan for peak pricing, with this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.
September ranks 4th of 12 for Kalymnos — one of the best windows
Best window · 10/10September averages 25°C (77°F) — warm enough for beach and boat plans, still short of the heat that pushes sightseeing into early morning.
Rain is a non-issue at 5 mm for the month, with about 30 days with 6+ hours of sunshine and 12.4 hours of daylight to work with.
A 10/10 puts this among the year's best months in Kalymnos (4th of 12); only June scores higher, at 10/10.
Plan for peak pricing, with crowds are moderate.
Pack light clothing, swimwear and real sun protection.
October ranks 5th of 12 for Kalymnos — one of the best windows
Best window · 9/10With 21°C (70°F) on average, October delivers classic beach weather: plenty of time in the water, with beach and boat plans rarely disrupted by cold.
With around 35 mm of rain, any showers tend to pass through rather than settle in; about 30 days with 6+ hours of sunshine and 11.2 hours of daylight fill the rest.
On our climate-comfort scale this is one of the strongest months of the year for Kalymnos at 9/10 (5th of 12), just behind June at 10/10.
Expect mid-season pricing, and crowds are moderate.
Pack light clothing, swimwear and real sun protection.
November in Kalymnos: mixed conditions, plan around the weather
Trade-offs · 6.9/10Temperatures hover around 19°C (65°F) — the kind of month where neither heat nor cold forces the schedule.
Budget for roughly 75 mm of rain this month — a flexible day or two helps — with about 27 days with 6+ hours of sunshine and 10.2 hours of daylight to work around it.
That is 6.9/10 on the same scale — 8th of 12 months, versus 10/10 for the best month here.
Expect mid-season pricing, and crowds are moderate.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
If your dates are flexible, June is materially better in Kalymnos — 3.1 points higher on the same scale.
December in Kalymnos — workable with trade-offs
Trade-offs · 5/10December averages 15°C (60°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Monthly rainfall reaches 106 mm — wet for this destination — but about 26 days with 6+ hours of sunshine still break through, so keep one indoor fallback in the plan.
It scores 5/10 here, 11th of 12 months, against 10/10 in the destination's best month.
Figure on low-season pricing, with crowds are light for this destination.
Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella.
Flexible dates? June scores 5 points higher here — enough to change the trip.
