Climate guide for Patmos, Greece

Best Time to Visit
Patmos

How to read the score (0–10)
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01 · Greece

About Patmos

Patmos is a small Dodecanese island north of Leros, best known as the place where the Book of Revelation was written. The monastery of Saint John the Theologian crowns Chora, and the Cave of the Apocalypse below it shares the same World Heritage listing; both are reached on foot from Skala, the port. Beaches such as Petra and Psili Ammos are quieter than the town, and boats reach the islets of Lipsi and Arki. May, June, September and October are mild, and winter is quiet.

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Did you know?

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Travel Tips

01Best time & timing
Target July, August, September — that is where comfort scores peak (9.9/10). December is the weakest month at 4.2/10.
02Weather & what to pack
July averages 24°C with 0 mm of rain and about 31 days with 6+ hours of sunshine. Pack light clothing, swimwear and strong sun protection.
03Crowds & value
If budget matters, target September — 9.5/10 with lighter demand than July.

Things to do in Patmos

Patmos, Greece. Live activities and tours from GetYourGuide, matched to this destination.

When to visit Patmos: the short answer

Plan Patmos for July, with August, September close behind — the stretch with the most usable temperatures and the fewest lost days to rain: July averages 24°C with 0 mm of rain and about 31 days with 6+ hours of sunshine. The months to avoid unless you have a specific reason are December, January. If budget matters more than perfect weather, February is the strongest of the low-rate months at 5.4/10.

Across the year Patmos swings from 12°C in February to 24°C in August, a 12-degree spread, while rainfall ranges from 0 mm in July to 153 mm in December. In short, Patmos is not equally good year-round — the gap between its best and worst month is 5.7 points on the same 10-point scale.

Warmest month: August (24°C). Coolest: February (12°C). Driest: July (0 mm). Wettest: December (153 mm).

Patmos month by month

January in Patmos: expect compromises

Hardest · 4.3/10

Temperatures hover around 13°C (56°F) — the kind of month where neither heat nor cold forces the schedule.

149 mm of rain makes this a wet month here, though with about 25 days with 6+ hours of sunshine there is still bright weather between the fronts.

That is 4.3/10 on the same scale — 11th of 12 months, versus 9.9/10 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, July is materially better in Patmos — 5.6 points higher on the same scale.

February in Patmos — middling scores, decent value

Trade-offs · 5.4/10

Temperatures hover around 12°C (54°F) — the kind of month where neither heat nor cold forces the schedule.

Budget for roughly 74 mm of rain this month — a flexible day or two helps — with about 26 days with 6+ hours of sunshine and 10.8 hours of daylight to work around it.

That is 5.4/10 on the same scale — 10th of 12 months, versus 9.9/10 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, July is materially better in Patmos — 4.5 points higher on the same scale.

March in Patmos — workable with trade-offs

Trade-offs · 6.2/10

March averages 13°C (55°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, 8th of 12 months, against 9.9/10 in the destination's best month.

Plan for mid-season pricing, with crowds are moderate.

Pack layers you can shed by midday plus one warm layer for the evening.

Flexible dates? July scores 3.7 points higher here — enough to change the trip.

April in Patmos — workable with trade-offs

Trade-offs · 6.3/10

Temperatures hover around 15°C (59°F) — the kind of month where neither heat nor cold forces the schedule.

With around 23 mm of rain, any showers tend to pass through rather than settle in; about 28 days with 6+ hours of sunshine and 13.2 hours of daylight fill the rest.

That is 6.3/10 on the same scale — 7th of 12 months, versus 9.9/10 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, July is materially better in Patmos — 3.6 points higher on the same scale.

May holds up well in Patmos — 6th best month

Good · 7.4/10

May averages 18°C (64°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.

Rain is a non-issue at 15 mm for the month, with about 30 days with 6+ hours of sunshine and 14.2 hours of daylight to work with.

It scores 7.4/10 here, 6th of 12 months, against 9.9/10 in the destination's best month.

Figure on mid-season pricing, with crowds are moderate.

Pack layers you can shed by midday plus one warm layer for the evening.

Flexible dates? July scores 2.5 points higher here — enough to change the trip.

June in Patmos — one of the year's strongest windows (4th)

Best window · 9.3/10

With 22°C (71°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 5 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 one of the strongest months of the year for Patmos at 9.3/10 (4th of 12), just behind July at 9.9/10.

Budget for mid-season pricing, and crowds are moderate.

Pack light clothing, swimwear and real sun protection.

July in Patmos — the year's strongest window

Best window · 9.9/10

With 24°C (74°F) on average, July delivers classic beach weather: plenty of time in the water, with beach and boat plans rarely disrupted by cold.

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 the top-ranked month of the year for Patmos at 9.9/10 — the reference point every other month on this page is measured against.

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 light clothing, swimwear and real sun protection.

August ranks 2nd of 12 for Patmos — one of the best windows

Best window · 9.8/10

August averages 24°C (75°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 1 mm for the month, with about 31 days with 6+ hours of sunshine and 13.6 hours of daylight to work with.

A 9.8/10 puts this among the year's best months in Patmos (2nd of 12); only July scores higher, at 9.9/10.

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 light clothing, swimwear and real sun protection.

September in Patmos — one of the year's strongest windows (3rd)

Best window · 9.5/10

September averages 22°C (72°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 8 mm for the month, with about 30 days with 6+ hours of sunshine and 12.4 hours of daylight to work with.

A 9.5/10 puts this among the year's best months in Patmos (3rd of 12); only July scores higher, at 9.9/10.

Plan for mid-season pricing, with crowds are moderate.

Pack light clothing, swimwear and real sun protection.

October in Patmos — reliably good (5th best month)

Good · 8/10

With 19°C (67°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 33 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.

That is 8/10 on the same scale — 5th of 12 months, versus 9.9/10 for the best month here.

Expect mid-season pricing, and crowds are moderate.

Pack light clothing, swimwear and real sun protection.

If your dates are flexible, July is materially better in Patmos — 1.9 points higher on the same scale.

November in Patmos — middling scores, decent value

Trade-offs · 6.2/10

Temperatures hover around 17°C (63°F) — the kind of month where neither heat nor cold forces the schedule.

Budget for roughly 83 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 6.2/10 on the same scale — 9th of 12 months, versus 9.9/10 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, July is materially better in Patmos — 3.7 points higher on the same scale.

December in Patmos — off-season conditions

Hardest · 4.2/10

December averages 15°C (58°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.

Monthly rainfall reaches 153 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 4.2/10 here, 12th of 12 months, against 9.9/10 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? July scores 5.7 points higher here — enough to change the trip.

FAQ

Frequently asked

When is the best time to visit Patmos, Greece?
In Ideal Weather mode, the best months to visit Patmos are July, August, September, June. July is the single peak month with an Ideal Weather score of 9.9/10 based on temperature, rainfall, humidity, daylight and days with 6+ hours of sunshine.
What is the weather like in Patmos year-round?
Patmos has a climate profile suited to beach and coastal travel. Average monthly temperatures range from 12°C in February to 24°C in August, with Ideal Weather scores between 4.2 and 9.9 out of 10.
Which months should I avoid in Patmos?
The lowest Ideal Weather-scoring months in Patmos are December (4.2/10), January (4.3/10), February (5.4/10). These months typically combine less comfortable temperatures, higher rainfall or fewer days with 6+ hours of sunshine.
When is the rainy season in Patmos?
December is the wettest month in Patmos, averaging about 153 mm of rainfall. July is the driest, at roughly 0 mm.
Which is the sunniest month in Patmos?
July sees the most sun in Patmos, with about 31 days with 6+ hours of sunshine on average - ideal for outdoor plans.
Is Patmos a good destination for beach and coastal travel?
Patmos is well suited to beach and coastal travel. Its highest Ideal Weather window (July, August, September, June) aligns with the conditions travelers usually look for in this style of trip.
How is the bestime.to score for Patmos calculated?
Each month receives an Ideal Weather score from 0-10 using ERA5 climate normals for Patmos: temperature comfort, precipitation, humidity, daylight hours, and days with 6+ hours of sunshine - weighted for beach and coastal travel.

Climate data: Open-Meteo ERA5 historical archive, the five most recent complete years (2021–2025). Scores are monthly averages for that window, not forecasts, and short-window precipitation can differ from longer-term normals. “Sunny days” count days with at least 6 hours of measured sunshine — they are not dry days.

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