5-day weather forecast Osaka Sep 12, 2026

31°23–31° · Patchy rain possible

Weather forecast Osaka today Sep 12, 2026: patchy rain possible, temperature from 23 °C to 31 °C.

Precipitation probability 48%. Wind up to 3.19 m/s (gusts 7.39 m/s). Air humidity 53–82%, atmospheric pressure 764–765 mm Hg, UV index up to 6.8.

Sunrise 05:38
Sunset 18:09
New Moon3% illuminated
Moonrise 06:24 · Moonset 18:31
Chart
Table
Sat, Sep 12, 2026

Forecast from 23 °C to 31 °C and precipitation

Temperature & Precipitation
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Temperature (°C)242324232323232424262729303131313129282727272726
Precipitation (mm/hr)00.32000000000000.030.090.050.010.030.080.080.170.490.30.15

Cloud cover and precipitation probability

Cloud cover & Rain chance
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Cloud cover (%)471002424731001009657525585117685518473748183888452
Rain chance (%)1345111119242423141091241117171112182229483925

Wind speed and direction

Wind & Wind gust
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Wind (m/s)2.693.192.69332.612.52.192.693.113.112.391.891.691.190.891.691.811.510.310.190.891.69
Wind gust (m/s)4.035.314.254.725.114.614.333.723.533.613.427.394.894.696.195.896.696.811.891.50.890.611.532.5
Wind direction (°)NNE 17°NNE 20°NNE 19°NNE 16°NNE 18°NNE 20°NNE 21°NE 39°NNE 26°NE 34°NE 41°NE 36°NNE 25°N 350°NW 323°WSW 242°SSW 211°SSW 209°SSW 198°SSW 205°WSW 256°NNE 12°ENE 68°ENE 71°

Air humidity

Humidity
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Humidity (%)798080818281818178716661595553545662687375767982

Atmospheric pressure

Pressure
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Pressure (mm Hg)764764764764764764764764765765765765764764764764764764764765765765765765

Ultraviolet index

UV Index
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
UV Index00000000.51.73.55.16.46.86.25.23.21.50.4000000

Air quality & pollen

Air quality
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
PM2.5 (µg/m³)1615.61514.213.313.213.616.116.815.915.714.214.714.615.61616.218.22330.736.735.333.331.7
PM10 (µg/m³)17.817.416.715.814.914.915.417.919.81918.515.715.515.316.216.616.819.224.231.837.636.234.132.5
Ozone (O₃) (µg/m³)5046423934293144638195108119128135135126111947452352724
NO₂ (µg/m³)2828.127.727.428.12928.826.523.119.716.41310.58.57.38.613.721.329.538.948.955.255.452
SO₂ (µg/m³)14.314.414.61515.716.717.719.120.62119.51714.913.71312.813.514.716.117.719.320.320.119.1
CO (µg/m³)237227217213220233248266285295289275266262263278323383423425407385361332
Sat, Sep 12, 2026

Frequently asked questions about the 5-day weather in Osaka

What will the weather be like in Osaka over the next 5 days?

Over the next 5 days in Osaka the temperature is expected to range from about 23 to 31 °C. See the detailed hourly forecast for each of the 5 days in the charts above.

On which of the next 5 days will it rain in Osaka?

The chance of rain in Osaka over the next 5 days reaches 80%. Check the 5-day precipitation chart above to see exactly which days and hours bring rain.

How accurate is the 5-day weather forecast for Osaka?

A 5-day forecast is fairly reliable: the first 2–3 days are usually very accurate, while days 4–5 may be refined. The data is updated several times a day, so check back before important plans.

Which of the next 5 days in Osaka will be the warmest and which the coolest?

Over the next 5 days the temperature in Osaka ranges from about 23 to 31 °C. Compare the warmest and coolest day on the temperature chart above.

Will it be windy in Osaka over the next 5 days?

Over the next 5 days the wind in Osaka picks up to 5 m/s. The windiest days are easy to spot on the wind chart above.

Which day of the week in Osaka is best for a walk or a trip?

For a walk or a trip, pick the days with the lowest chance of rain (up to 80%) and light wind — easy to compare on the 5-day charts above.

How can I best use the 5-day forecast for Osaka?

The first 2–3 days are reliable enough for firm decisions, while days 4–5 are a guide that sharpens as they approach. The forecast is updated several times a day, so check again before important plans.

Will I need an umbrella or sunscreen in Osaka this week?

Rain reaches a 80% chance across the next 5 days, so pack something waterproof for the wettest of them — the daily strip above shows which. Today’s UV index peaks at 6.8; sunscreen is worth it from about 3 upwards.

Osaka on the map

Data Sources & Methodology

Our weather forecasts are powered by a professional weather data provider that aggregates data from national weather services, satellite observations, radar networks, and over 80,000 weather stations worldwide. Forecast data is updated multiple times daily. We convert raw data into clear summaries — wind speed in m/s, pressure in mmHg — so you can plan your day with confidence.