Kish Island weather by month

The best time to visit Kish Island is March, April and November — 94/100 in March, 28°C and 2 rainy days. The best season is spring, March to May (93/100 on average).

The worst month is August at 86/100 — sweltering, dry, poor air quality. See August →

Updated September 2026 · climate normals from ERA5 reanalysis

Planning the wider trip? Best time to visit Iran →

Kish Island🇮🇷 Iran · Arabia & the Gulf · Island94
  1. 89Jan
  2. 91Feb
  3. 94Mar
  4. 93Apr
  5. 91May
  6. 88Jun
  7. 86Jul
  8. 86Aug
  9. 87Sep
  10. 89Oct
  11. 94Nov
  12. 91Dec

Best season: March to May (93/100 on average) · worst August (86/100)

Days
28°C
Nights
20°C
Wet days
2
Sun
10.4 h
Humidity
56%
Daylight
12 h
Kish Island, Iran
Photo: foad niestat · Pexels

Kish Island, month by month

Comfort score out of 100 for the kind of trip Kish Island is best for, the average high, rainy days and hours of sun a day from the climate normals, and how busy it tends to be.

MonthScoreTierHighRainSunCrowdsOn
Jan89A24°C3 d9 hBusy2
Feb91S25°C2 d10 hBusy2
Mar94S28°C2 d10 hPeak3
Apr93S32°C1 d11 hBusy2
May91S36°C0 d13 hBusy3
Jun88A38°C0 d13 hBusy2
Jul86A39°C0 d13 hBusy2
Aug86A39°C0 d12 hQuiet1
Sep87A37°C0 d11 hQuiet1
Oct89A35°C0 d10 hShoulder1
Nov94S30°C2 d10 hBusy1
Dec91S26°C2 d9 hShoulder1

What's on in Kish Island through the year

Festivals, natural spectacles, holidays and the seasons to watch out for — curated and sourced. The month pages carry the detail.

January
  • Ramadan25 Jan – 25 Mar (usually)Holiday
March
  • Nowruz18 Mar – 5 Apr (usually)Holiday
May
  • Muharram and Ashura25 May – 10 Jul (usually)Holiday
  • Gulf heat and humidity20 May – 30 Sep (usually)Season
October
  • Diving and beach season15 Oct – 10 May (usually)Season

Everything on in Kish Island through the year →

Crowds in Kish Island in March

How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.

Peak crowdsRamadan, Nowruz, school holidays in 2 of the markets that fill it(estimated)

JFMAMJJASOND

Peak crowdsBusyShoulder seasonQuiet

Traveller notes on Kish Island

What people who have been say about the place — the year-round notes first, then month by month.

Forum posters are direct that summer is the worst possible time to visit Kish Island, with temperatures reported well above 40C and stifling humidity, and consistently steer visitors instead toward the March-through-May and October-November windows as the genuinely pleasant times to go. Posters describe spring conditions warming steadily through the season, with April and May running noticeably hotter than March. Posters consistently recommend the warm, calm waters of the Persian Gulf here for swimming and water sports even outside peak summer heat. Posters generally rate March specifically as a comfortable entry point into that recommended spring window, before the fuller heat of April and May sets in.
Tripadvisor community · March · 1 month ago · Read more on Tripadvisor ↗
Forum posters describe Kish Island's summer as genuinely the worst time to visit, with temperatures exceeding 40C and high humidity, some visitors specifically citing 110-115F conditions made worse by having to wear head coverings and coats. A local guide specifically advises against a September visit if it can be avoided, though notes conditions do moderate somewhat by the end of the month for anyone with no other option and reasonable heat tolerance. Posters consistently rate March-May and October-November as the genuinely comfortable windows, implying September sits at the tail end of the punishing summer stretch rather than truly in the shoulder season yet. Posters generally rate September as still hot and demanding for Kish Island, improving only toward the very end of the month, with October offering a clearly better-regarded alternative just weeks away.
Tripadvisor community · September · 1 month ago · Read more on Tripadvisor ↗

Add your own note from Kish Island's card on the map.