Best time to visit Patmos

Re-score for me — drag the dial — every chart recolours live for your heat & sea limits 27°C · sea 29°C
I'm comfortable up to 27°C feels-like
22° heat-averse 30° heat-loving

Default 27 °C is the upper edge of the Holiday Climate Index "ideal comfort" band (Scott, Rutty, Amelung & Tang, 2016). Above this, most warm-tourism travellers report measurable discomfort.

Sea feels bathtub at 29°C
26° strict 31° tolerant

Default 29 °C is the Beach Climate Index "bathtub" line (Morgan et al.) — where the sea stops being refreshing and starts feeling like a warm bath.

Saved to this browser. Changes update the strips below.
Sea temp cold <18° chilly 18–21° ideal 22–26° warm 27–28° bathtub 29–30° too warm ≥31°
Recent · 2020-2024
Interest Google Trends 2021-2025 searches, not arrivals (?)
Sea Nov 2022 – Dec 2024 (?)
Day · avg daily high (?)
Night · avg overnight low (?)
UV index · On a typical day around midday, UV is about this (?)
2346791097532
On the sunniest 1 in 10 days, UV reaches this — and even higher
483
PM2.5 air quality · on a typical day (?)
7710101011121211997
On the worst 1 in 10 days, PM2.5 reaches this — and even higher
111017151414161615131511
June 9/10 feels 22°C (+1°C vs 1991-2020) · HCI 93/100
Day 23° · Night 21° ☀ UV 8.8 (very high) 77% humidity 31 km/h wind 2 rain days (13h) 312h sun sea 22°C
Thermal 7
Sky 10
Rain 10
Wind 9

Higher = better, including rain & wind (green = "doesn't hurt the score", not "lots of it").

How is this scored? HCI / Steadman / CCI gate — full methodology and citations below.

Compare with another destination

Add as many as you like — stacked below the main strips above. Each row is just the recent-window score strip and (for beach destinations) sea-temperature strip.

Tours in Patmos

6 top-rated tours via Viator. Booking links earn this site a commission at no cost to you. Map locations are approximate (centred on Patmos).

  1. 1Discover the Highlights of Kefalonia Full-Day Tour5.00★ (6)8hfrom $76
  2. 2Kefalonia Highlights - Bus & Cruise, Assos & Lunch in Fiscardo5.00★ (9)7hfrom $123
  3. 3Patmos Private Half Day Tour from Cruise Port4hfrom $407
  4. 4Guided Tour Patmos, Grotto of Apocalypses & Saint John Monastery4.77★ (13)from $389
  5. 5Private Sightseeing: The Caves & Fiscardo village6hfrom $290
  6. 6Guided Shore Excursion Patmos to the most Religious Highlights3.63★ (8)from $419

Last refreshed 2026-06-09.

Similar climatesMykonos92% · Santorini92% · Paros91%

Other destinations with the most-alike year-round climate to Patmos (apparent temperature, rain hours, sunshine — matched within the same trip-profile). The ±N chip compares each match's typical score for the current month against Patmos's. Based on the 2020-2024 climatology, not this year's actual weather.

Month-by-month

Month Temp °C Feels °C Rain days Rain h Rain h/day Humidity Wind km/h Sun h UV Interest Score
Jan 12–14 9 13 164 12.6 67% 39 180 2 Quiet 5
Feb 12–14 9 7 97 13.9 69% 39 199 3 Quiet 7
Mar 12–14 9 8 91 11.4 68% 38 234 4 Quiet 7
Apr 14–16 13 3 38 12.7 74% 35 252 6 Quiet 9
May 17–19 17 3 20 6.7 77% 30 298 7 Quiet 9
Jun 21–23 22 2 13 6.5 77% 31 312 9 Quiet 9
Jul 23–25 24 0 0 — 73% 38 320 10 Quiet 9
Aug 23–25 26 0 1 — 76% 33 300 9 Peak 9
Sep 22–24 23 1 5 5.0 74% 33 266 7 Quiet 9
Oct 19–21 19 2 20 10.0 73% 32 235 5 Quiet 9
Nov 16–18 15 9 89 9.9 70% 36 197 3 Quiet 8
Dec 14–16 12 14 194 13.9 70% 36 180 2 Quiet 5

UV Index in Patmos by Month

UV index in Patmos peaks at 10 (very high) in July, dropping to 2 (low) in December. June, July, August reach very high or extreme levels — apply SPF 50+, wear a hat and protective clothing, and limit direct sun between 11:00 and 17:00.

Best months in detail

June

9/10

21–23°C · 2 rain days (13h) · 312 sun hours · 77% humidity · Quiet crowd · UV 9 (very high)

August

9/10

23–25°C · 0 rain days (1h) · 300 sun hours · 76% humidity · Peak crowd · UV 9 (very high)

September

9/10

22–24°C · 1 rain days (5h) · 266 sun hours · 74% humidity · Quiet crowd · UV 7 (high)

Every month

Show the other 9 months in detail

January

5/10

12–14°C (feels 9°C) · 13 rain days (164h) · 180 sun hours · 67% humidity · Quiet crowd · UV 2 (low)

February

7/10

12–14°C (feels 9°C) · 7 rain days (97h) · 199 sun hours · 69% humidity · Quiet crowd · UV 3 (low) · sunniest 1 in 10 days reach 4 (moderate)

March

7/10

12–14°C (feels 9°C) · 8 rain days (91h) · 234 sun hours · 68% humidity · Quiet crowd · UV 4 (moderate)

April

9/10

14–16°C (feels 13°C) · 3 rain days (38h) · 252 sun hours · 74% humidity · Quiet crowd · UV 6 (high)

May

9/10

17–19°C (feels 17°C) · 3 rain days (20h) · 298 sun hours · 77% humidity · Quiet crowd · UV 7 (high) · sunniest 1 in 10 days reach 8 (very high)

July

9/10

23–25°C · 0 rain days (0h) · 320 sun hours · 73% humidity · Quiet crowd · UV 10 (very high)

October

9/10

19–21°C (feels 19°C) · 2 rain days (20h) · 235 sun hours · 73% humidity · Quiet crowd · UV 5 (moderate)

November

8/10

16–18°C (feels 15°C) · 9 rain days (89h) · 197 sun hours · 70% humidity · Quiet crowd · UV 3 (low) · sunniest 1 in 10 days reach 3 (moderate)

December

5/10

14–16°C (feels 12°C) · 14 rain days (194h) · 180 sun hours · 70% humidity · Quiet crowd · UV 2 (low)

Frequently asked questions about visiting Patmos

When is the best time to visit Patmos?

June is the highest-scoring month (9/10 on the Holiday Climate Index). Typical conditions: 21–23°C (2 rainy days). The top three months by score are June, August, September.

What is the worst time to visit Patmos?

December is the lowest-scoring month (5/10). Typical conditions: 14–16°C (14 rainy days).

When are crowds lowest in Patmos?

Search-interest seasonality (Google Trends 2021-2025) is lowest in January and peaks in August. Interest tracks both in-trip visitors and lead-time planners, so treat it as a "destination is on people's minds" signal rather than literal arrivals.

Which months in Patmos have good weather but fewer tourists?

April (climate 9/10, crowd index 15) and May (climate 9/10, crowd index 0) — shoulder months with above-average climate and below-median search-interest. Often the best value-for-weather trade.

What is the UV index in Patmos by month?

UV peaks at 10 (very high) in July and is lowest in December at 2 (low). Monthly peak values: Jan 2, Feb 3, Mar 4, Apr 6, May 7, Jun 9, Jul 10, Aug 9, Sep 7, Oct 5, Nov 3, Dec 2. June, July, August reach very high or extreme levels — apply SPF 50+, wear a hat and protective clothing, and limit direct sun between 11:00 and 17:00.

What is the UV index in Patmos in July?

July is the peak UV month in Patmos, with a daily-peak UV index of 10 (very high). At this level, sunburn can occur in under 20 minutes on unprotected fair skin. Apply SPF 50+, wear protective clothing and a hat, and avoid direct midday sun (11:00–17:00).

How high can UV get in Patmos on the sunniest days?

Most days look like the monthly average, but on the sunniest ~1 in 10 days UV climbs higher than the mean suggests. May is the worst case: typical days average UV 7 (high), but the top 10% of days reach UV 8 (very high) — and even higher. Months where the sunniest days routinely exceed the typical reading: February, May, November. Plan sun protection for the worst case, not the average.

Is air quality in Patmos bad for travelers?

PM2.5 (fine-particle pollution) exceeds the WHO sensitive-group guideline (15 µg/m³) in 5 months: March, April, July, August, September. The worst month is August with a typical-day mean of 12 µg/m³ (moderate); on the worst 10% of days PM2.5 reaches 16 µg/m³ (unhealthy for sensitive) and higher. People with asthma, heart conditions, or sensitive children may want to avoid these months or limit outdoor activity. Source: CAMS via Open-Meteo.