Osaka, Japan skyline

Osaka Weather in July

What July is usually like in Osaka, Japan — from 2006–2025 averages.

Expect Osaka to reach about 30.3°C (86.5°F) by day and 23.8°C (74.8°F) at night in July, with 16 rainy days bringing 220 mm and around 9.6 hours of sunshine each day.

Avg high

30.3°C (86.5°F)

Avg low

23.8°C (74.8°F)

Rainfall

220 mm (8.7 in)

Rainy days

16 days

Sunshine

9.6 h / day

Humidity

80%

July vs the rest of the year

July is warmer than 10 of the other 11 months, and the wettest month in Osaka.

MonthAvg highvs JulyRainRainy days
January8.6°C (47.5°F)−21.7°C (−39.1°F)51 mm6
February9.7°C (49.5°F)−20.6°C (−37.1°F)72 mm8
March13.5°C (56.3°F)−16.8°C (−30.2°F)115 mm11
April18.4°C (65.1°F)−11.9°C (−21.4°F)137 mm11
May23°C (73.4°F)−7.3°C (−13.1°F)163 mm11
June26.6°C (79.9°F)−3.7°C (−6.7°F)210 mm13
July30.3°C (86.5°F)—220 mm16
August32.3°C (90.1°F)+2°C (+3.6°F)135 mm12
September28.6°C (83.5°F)−1.7°C (−3.1°F)189 mm13
October22.6°C (72.7°F)−7.7°C (−13.9°F)162 mm10
November16.6°C (61.9°F)−13.7°C (−24.7°F)86 mm8
December11°C (51.8°F)−19.3°C (−34.7°F)65 mm7

What July feels like in Osaka

In Osaka, July brings mid-summer. Afternoons are hot, so sightseeing works best in the morning or evening. Little changes after sunset — nights stay warm, only slightly below the daytime level. Thick, humid air means clothes cling and the heat feels stronger than the number.

Rain in Osaka in July

Rain is part of normal life this month, falling on about every other day. Rainy days are intense, averaging about 13.8 mm (0.5 in) — downpours rather than drizzle. Across the year Osaka averages about 12.7 mm per rainy day, so July is typical. July is Osaka's wettest month of the year.

Daylight and sunshine in July

In mid-July, sunrise is at about 4:55 am and sunset at about 7:12 pm (local time) — 14 h 17 min of daylight. Days are getting shorter: 11 min less daylight than in mid-June. Measured sunshine covers about 67% of the daylight — there are plenty of bright spells.

How July compares to the rest of the year

In Osaka's temperature order, July sits as the 2nd warmest month. Afternoons run 3.7°C (6.7°F) warmer than in June, with 10 mm more rain. The warm-up continues into August. August averages a high of 32.3°C (90.1°F).

Who July suits

  • Sightseeing: less ideal — rain falls on more than half the days.
  • Parks & outdoor: less ideal — afternoons are too warm to linger outside.
  • Beach: less ideal — too many rainy days.
  • Museums & indoor: a good choice — with rain on most days, galleries and museums make easy plans.

Tips for visiting Osaka in July

Rain Protection

Keep a small umbrella in your bag and wear shoes that cope with puddles.

Sun Protection

Sunscreen, a hat and sunglasses; light breathable clothes.

Quick questions

How warm is Osaka in July?

Afternoons average 30.3°C (86.5°F) and nights about 23.8°C (74.8°F) — hot by most people's standards. It is the 2nd warmest month of the year.

Does it rain a lot in Osaka in July?

It does: about 16 rainy days bring roughly 220 mm, so plan some indoor options.

What should I wear in Osaka in July?

The numbers point to rain protection and sun protection. Evenings feel similar to the day, so the same clothes work from morning to night.

Is July or August better for visiting Osaka?

August scores better on our climate ranking (#11 of 12 vs #12), rated Fair against Fair. August is warmer and has fewer rainy days.

Is July a good time to visit Osaka?

Fair

Fair — warm to hot days, rain on most days (about 16), heavy rainfall (220 mm), plenty of sunshine (9.6 h a day). Within Osaka's own year, July ranks #12 of 12 — one of the least comfortable months.

July in other Japan cities

Drier places in July

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Monthly averages from 20 years of Open-Meteo history (2006–2025), not a forecast — see all 12 months in Osaka weather by month.