Osaka weather in June
June in Osaka: hot, soaked, with muggy air — fine if you can take 13 rainy days.
Updated September 2026 · climate normals from ERA5 reanalysis
#9 of 12 months in Osaka · #1041 of 1413 destinations to visit in June · comfort 66/100 (tier C)
- Days
- 29°C
- Nights
- 21°C
- Wet days
- 13
- Sun
- 8.7 h
- Humidity
- 77%
- Daylight
- 14 h

What June is like in Osaka
The rain season sets in around the second week: humid, grey and quiet, and the covered arcades come into their own.
monsoonlow season
confidence: high
Traveller notes on Osaka in June
Notes from nearby Nara (28 km away)
Osaka doesn't have its own notes for June yet — these are about Nara, close enough to share the season.
Regulars are specific this falls within the rainy season here, several genuinely wet days a real possibility across a typical trip, though conditions stay meaningfully more comfortable than the following July once real summer heat and mugginess arrive. Our row backs that hot, genuinely wet read, 28.6C reading as a hot 31C, over 18.9C nights feeling 21C, with a substantial 199.2mm of rain across 11.7 days and humidity at 78 percent. Regulars are consistent the famous deer park, a 15-minute walk from JR Nara station, stays reliably full of deer regardless of the weather or season, a genuine reason to visit even on a rainy day. Layers and rain gear remain the standard advice given the real chance of a wet stretch. The record: 8.6 hours of sun, a 12.5 kph wind and AQI 63.
Other months in Osaka
Regulars are specific that the coldest winter stretch usually doesn't set in until late December, and even then it isn't brutal, especially during the day - mornings can start in the low single digits Celsius before climbing to a manageable afternoon. Our row backs that cool-not-harsh read, 12.9C over 5.5C nights feeling 3C, with 49.3mm of rain across 5.6 days and only a trace of snow, 0.2cm, matching regulars' consensus that real snow in the city itself is genuinely rare. Regulars are consistent that conditions stay dry and often sunny rather than gray, a real upside for a December city trip. A warm layer for the evenings is the standard packing tip, not a heavy winter coat. The sea sits at a cold 11.9C. The record: humidity 75 percent, 7.4 hours of sun, a 15.1 kph wind and AQI 56.
Late March here swings hard - one day mild, the next genuinely cold - and regulars pack for both: long sleeves, a sweater, a light jacket and something that rolls up small. Our row gives 15.7C reading as 14C and 7C nights that feel like 4C, with 104.6mm of rain across 9.9 days, so the umbrella is not optional either. On the blossom they are careful: the trees will be somewhere between budding and open depending on the year's warmth, and the forecast is the only guide. This is the same caution kagoshima/3 records further south, where the season starts earlier. The record: humidity 72 percent, 8.4 hours of sun and AQI 64.
Regulars rate October among the best months here - warm clear days, cool but not cold evenings, few tourists and no major holidays - and add two corrections. Typhoons rarely reach this far into the month; they usually finish earlier, and a late one is likely just a day of rain. And there is no autumn colour yet: the leaves in Osaka and Kyoto do not turn until mid-November, so anyone booking October for foliage has the wrong month. Our row queries their word dry, at 170.9mm across 11.5 days under 7.7 hours of sun, though the temperature matches at 24.3C over 16.6C. A light jacket and a sweater, not a coat. The record: humidity 77 percent, a 22.7C sea and AQI 55.
April in Osaka is the blossom month with a deadline attached. Regulars put the season from the end of March to about mid-April and are blunt that by the 15th to the 22nd you have missed it in the city; Mount Yoshino in Nara is the day trip they send late arrivals on. The temperatures they give - 10 to 20C - bracket our row's 11.9C nights and 21C days, and the packing follows from that: layers, long sleeves over a t-shirt, a jumper or light jacket for the evening, and no need for a proper coat. The item they insist on is a rain jacket, because April here is wet - our row carries 137.3mm across 9.8 days. The record: 8.9 hours of sun, humidity 72 percent and AQI 70.
Add your own note from Osaka's card on the map.
Osaka climate normals — June
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Osaka in June
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.
Quietthe editor's quiet month, school holidays in 3 of the markets that fill it
Peak crowdsBusyShoulder seasonQuiet
Best months for Osaka'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 weatherOsaka's best weather comes in April, May and November — separate windows, not one continuous season.
Best weatherFair weatherToughest weather
What's on in Osaka in June
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Tsuyu rain season
5 Jun – 20 Jul · usuallyMonsoonThe rain front usually arrives in the second week of June and stays a month. This is the city of covered arcades, so it copes with it better than most.
Nearby, and something's on
Within 300 km of Osaka — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Osaka?
Osaka in June — FAQ
- Is June a good time to visit Osaka?
- June in Osaka: hot, soaked, with muggy air — fine if you can take 13 rainy days. It ranks #9 of 12 months for Osaka on SeasonMap's comfort score (66/100).
- What is the weather like in Osaka in June?
- In June, Osaka averages a daily high of 28.5°C and a low of 20.7°C, with about 208 mm of rain over roughly 12.9 rainy days.
- What is the air quality in Osaka in June?
- Osaka has a mean US Air Quality Index of about 77 in June.
Within 300 km: Kanazawa's Hyakumangoku Matsuri around 1–8 Jun, and Matsumoto's Kamikochi open season around 17 Apr – 15 Nov.