TravelCityIndex
HomeCheapestSafestBest timeMethodology
TravelCityIndex

One page of sourced numbers per city: what a day costs, what the travel advisory says, and which months score best on the weather.

Data: GeoNames, Open-Meteo, World Bank, US State Department, UK FCDO.

Site

  • About
  • Sources
  • Methodology
  • Privacy
  • Terms
  • Contact
© 2026 Travel City Index. Every number on this site comes from a dataset named on the page that shows it.
  1. Home
  2. /Japan
  3. /Osaka
  4. /Best time to visit
Weather and seasons in Osaka, Japan

Best time to visit Osaka: month-by-month weather (2026)

The highest-scoring months in Osaka are May, Jun and Oct.

Best months

May, Jun and Oct

Peak season

May, Jun and Oct

Off season

Feb, Jul and Aug

Monthly Temperatures (°C)

Monthly Rainfall (mm)

Month-by-Month Guide

Temperature, rainfall and sunshine are measured. The visit score below is derived from those three (design spec §5.3)estimate.

Jan

Temp: 1°C – 9.5°C

Rain: 39mm

Sunshine: 7.9h/day

Visit score: 4.9/10

Feb

Temp: 1.6°C – 9.9°C

Rain: 71mm

Sunshine: 7.3h/day

Visit score: 3.9/10

Mar

Temp: 5.1°C – 14.3°C

Rain: 123mm

Sunshine: 8.1h/day

Visit score: 4.6/10

Apr

Temp: 10.5°C – 20.1°C

Rain: 146mm

Sunshine: 8.2h/day

Visit score: 6.7/10

May

Best

Temp: 14.2°C – 22.9°C

Rain: 248mm

Sunshine: 8.8h/day

Visit score: 7.3/10

Jun

Best

Temp: 19.6°C – 27.1°C

Rain: 324mm

Sunshine: 8.2h/day

Visit score: 7.3/10

Jul

Temp: 25.3°C – 33.1°C

Rain: 180mm

Sunshine: 11.1h/day

Visit score: 3.8/10

Aug

Temp: 26.5°C – 34.4°C

Rain: 159mm

Sunshine: 10.7h/day

Visit score: 3.8/10

Sep

Temp: 23.7°C – 31.5°C

Rain: 136mm

Sunshine: 9.8h/day

Visit score: 6.7/10

Oct

Best

Temp: 15.9°C – 24°C

Rain: 150mm

Sunshine: 7.9h/day

Visit score: 7.2/10

Nov

Temp: 8.6°C – 17.4°C

Rain: 106mm

Sunshine: 8h/day

Visit score: 4.6/10

Dec

Temp: 3.5°C – 12.1°C

Rain: 34mm

Sunshine: 8.1h/day

Visit score: 4.9/10

When to go, and when not to

May, June, and October are the strongest months for a visit, combining milder temperatures with more sunshine hours than the winter or peak summer months. May and June see highs in the low-to-high 20s Celsius with 8.8 and 8.2 hours of sunshine per day respectively, while October cools slightly to a high near 24 degrees Celsius with 7.9 hours of sunshine, all offering a more comfortable balance than the extremes of the year.

The trade-off is that May, June, and October are also the peak season, meaning more visitors and likely higher demand on lodging. June is also the wettest month at 324mm of rain, and July and August bring the most intense heat, with highs of 33.1 and 34.4 degrees Celsius, conditions reflected in their lower visit scores. Travelers who prioritize lower costs and fewer crowds over ideal weather may prefer the off-season months of February, July, and August instead.

Season Guide

Spring

March – May

Mild temperatures and blooming gardens. A great time for sightseeing with fewer crowds than summer.

Packing tips

  • · Light layers
  • · Rain jacket
  • · Comfortable walking shoes

Summer

June – August

Warmest months with the longest days. Peak tourist season in most destinations.

Packing tips

  • · Sunscreen
  • · Hat
  • · Light clothing
  • · Refillable water bottle

Autumn

September – November

Cooling temperatures and autumn foliage. Shoulder season with good deals on accommodations.

Packing tips

  • · Medium layers
  • · Sweater
  • · Waterproof jacket

Winter

December – February

Coldest months with shorter days. Holiday markets and winter activities in many cities.

Packing tips

  • · Warm coat
  • · Scarf and gloves
  • · Thermal layers
  • · Waterproof boots

Keep reading

More on Osaka

  • Back to Osaka
  • Best cities to visit in May
  • Best cities to visit in June
  • Best cities to visit in October

Sources

  • GeoNames city database — CC BY 4.0, fetched September 14, 2026
  • Open-Meteo climate archive — CC BY 4.0, fetched September 21, 2026

AI-written interpretation reviewed against the data above — claude-sonnet-5, generated September 21, 2026. Every number on this page comes from a dataset named here; the formulas are public.