Miyakojima (Miyako) weather in July

July in Miyakojima: sweltering, soaked, with clean air — fine if you can take 14 rainy days.

Updated September 2026 · climate normals from ERA5 reanalysis

Miyakojima🇯🇵 Japan · Taiwan & Okinawa · Island77
  1. 63Jan
  2. 69Feb
  3. 75Mar
  4. 80Apr
  5. 74May
  6. 77Jun
  7. 77Jul
  8. 72Aug
  9. 71Sep
  10. 76Oct
  11. 72Nov
  12. 59Dec

#3 of 12 months in Miyakojima · #779 of 1413 destinations to visit in July · comfort 77/100 (tier B)

Days
32°C
Nights
27°C
Wet days
14
Sun
11.2 h
Humidity
82%
Daylight
14 h
Miyakojima, Japan
Photo: Ruriko Photo · Pexels

Traveller notes on Miyakojima in July

Regulars rate Miyako's beaches the best in Japan and July among the worst times to see them: very hot and very humid, with the warm sea making it worse rather than better. Our row is the evidence - 32.1C reading as 38C, nights of 26.7C that feel like 30C, 82 percent humidity and a sea at 29.5C that offers no cooling at all. The other summer risk on the Ryukyus is logistical: typhoons are frequent and can delay an arrival or a departure by days, which matters more than the rain itself, though our 164.7mm across 14.4 days is substantial. March and October are the months they name instead. People who came in July still enjoyed it, with plenty of cold drinks. The record: 11.2 hours of sun, a 31.1 kph wind and AQI 35.
BestBeachesWorstMonth · July · 1 month ago · Read more on Tripadvisor ↗

Other months in Miyakojima

Regulars are direct this counts as a genuine gamble month, the official typhoon season running June through November with most storms actually hitting in July, August, September and October specifically, real potential for arrival or departure delays. Our row backs that hot, genuinely wet read, 31.8C reading as a scorching 37C, over 26.5C nights feeling 30C, with a substantial 232.2mm of rain across 17.3 days and a real 27.7 kph wind. Regulars are consistent March and October are named as the actual best months here, coolest and driest by comparison, this month instead bringing the summer's full heat and humidity on top of the storm risk. Underwater visibility for snorkeling can also take a real hit when rain moves through. The sea sits at a bath-warm 30.1C. The record: 10.5 hours of sun, humidity 82 percent and AQI 39.
GenuineGambleMonthMarchOctoberBetter · August · 1 month ago · Read more on Tripadvisor ↗
May opens the rainy season on this chain of islands, and regulars are quick to distinguish it from the mainland version: it rains neither every day nor all day, more often a one or two hour downpour followed by sun, though some stretches bring lots of drizzle instead and the pattern really cannot be predicted in advance. Our row backs the shift with 227.1mm across 15.9 days at 82.8 percent humidity, while temperature stays comfortable, 28.2C reading as 32C over 23.3C nights. The board's peak recommendation is March or October, the coolest and driest months, but they are clear May is still visitable rather than a month to avoid. The sea is 26C. Typhoons belong to September, not now. The record: 9.6 hours of sun, a 27.9 kph wind and AQI 57.
OneOrTwoHourDownpoursThenSun · May · 1 month ago · Read more on Tripadvisor ↗
March counts as a peak month here for reasons that have nothing to do with getting in the water. Regulars name it among the coolest and driest of the year and place it in the typhoon-free spring, which is what makes it comfortable to travel in. The sea is the catch: still wintry, still cold enough that anyone coming for a beach holiday is pointed at April at the earliest, and the windy stretch has not finished either. Our row backs both halves - a 32.8 kph average wind and a 22.9C sea, under 23.1C days and 18C nights that feel like 15C. Driest is relative: 123.1mm still falls, across 12.8 days. The record: humidity 73 percent, 8.1 hours of sun and AQI 58.
PeakMonthButNotForSwimming · March · 1 month ago · Read more on Tripadvisor ↗
June is the peak of Okinawa's rainy season, and the forum's correction is about what that actually means: this is not mainland Japan's rain, and it neither falls every day nor all day. The pattern people describe is a hard burst of thirty minutes to an hour and then light rain or clear sky. The season usually ends in the third week of June, so the back half of the month is the better half, and the typhoon risk belongs to mid-July through September rather than now. Plan an indoor option and expect to use it occasionally. Our row is the scale of it: 185.7mm over 15.3 days at 85 percent humidity, with a 29.3 kph wind. The record: 30.9C days that feel like 36C, 26.1C nights and a 27.9C sea.
ThirtyMinutesThenClear · June · 1 month ago · Read more on Tripadvisor ↗

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Miyakojima climate normals — July

Daytime high32°C / 90°F🔥 sweltering
Nighttime low27°C / 80°F
Feels like (high)38°C / 100°F
Sea temperature30°C / 85°F♨️ bath-warm
Rainfall165 mm / 6.5 in⛈ soaked
Rainy days14 days
Humidity82%💦 very humid
Dew point26°C / 79°F
Sunshine11.2 h/day
Daylight13.5 h
Wind31 km/h / 19 mph
Air quality (US AQI)35🍃 good

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Miyakojima in July

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.

BusySummer break (natsuyasumi) in Japan, school holidays in 4 of the markets that fill it(estimated)

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Peak crowdsBusyShoulder seasonQuiet

Best months for Miyakojima's weather

Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).

Fair weatherMiyakojima's weather doesn't swing hard through the year — comfort stays fairly steady in every month.

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What's on in Miyakojima in July

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Season

    Sea warm enough to swim

    1 Apr – 15 Nov · usually

    The water off Yonaha Maehama is comfortable for most of the year. Wind and swell, not temperature, decide whether the boats to the outer reef go out on any given morning.

  • Hazard

    Typhoon season

    1 Jul – 15 Oct · usuallyClosures

    Miyako takes direct hits rather than glancing ones. Shutters go down, flights are cancelled a day either side, and the shops close — the single biggest risk to a summer trip here. Source ↗

What's on around the world in July →

Where is Miyakojima?

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Miyakojima in July — FAQ

Is July a good time to visit Miyakojima?
July in Miyakojima: sweltering, soaked, with clean air — fine if you can take 14 rainy days. It ranks #3 of 12 months for Miyakojima on SeasonMap's comfort score (77/100).
What is the weather like in Miyakojima in July?
In July, Miyakojima averages a daily high of 32.1°C and a low of 26.7°C, with about 164.7 mm of rain over roughly 14.4 rainy days.
What is the air quality in Miyakojima in July?
Miyakojima has a mean US Air Quality Index of about 35 in July.