5-day weather forecast Osaka 18-08-2026

Weather forecast Osaka today 18.08.2026: overcast, temperature from 26 °C to 33 °C.

Precipitation probability 21%. Wind up to 5.89 m/s (gusts 9.89 m/s). Air humidity 45–76%, atmospheric pressure 759–761 mm Hg, UV index up to 9.3.

Sunrise 05:20
Sunset 18:42
First Quarter37% illuminated
Moonrise 11:03 · Moonset 21:36
Chart
Table
Tue, Aug 18, 2026
TemperatureRain chanceCloud coverHumidityPressureWindUV Index
00:00Weather
Patchy rain possible
27 °C18% (0.02 mm/hr)91%70%760 mm HgNE 44° 3.81 (4.33) m/s0
01:00Weather
Overcast
26 °C18% 100%71%760 mm HgNE 47° 3.61 (4.42) m/s0
02:00Weather
Patchy rain possible
26 °C20% (0.01 mm/hr)100%72%759 mm HgENE 72° 3.39 (4.53) m/s0
03:00Weather
Overcast
26 °C20% 100%74%760 mm HgENE 57° 2.61 (2.81) m/s0
04:00Weather
Overcast
26 °C21% 100%75%760 mm HgENE 63° 2.61 (3.11) m/s0
05:00Weather
Overcast
26 °C21% 100%76%760 mm HgNE 51° 2.5 (3.22) m/s0
06:00Weather
Overcast
26 °C21% 99%76%761 mm HgENE 65° 2.69 (3.61) m/s0.2
07:00Weather
Overcast
26 °C19% 100%72%761 mm HgENE 67° 2.61 (3.11) m/s0.8
08:00Weather
Overcast
28 °C16% 100%66%761 mm HgE 80° 2.5 (2.92) m/s2.2
09:00Weather
Overcast
29 °C14% 100%59%761 mm HgESE 102° 2.11 (2.42) m/s4.4
10:00Weather
Partly cloudy
31 °C5% 50%52%761 mm HgSSE 152° 1.19 (1.69) m/s6.8
11:00Weather
Overcast
32 °C11% 100%48%760 mm HgSSW 213° 1.5 (1.72) m/s8.5
12:00Weather
Overcast
33 °C11% 100%46%760 mm HgSW 226° 2.5 (6.5) m/s9.3
13:00Weather
Overcast
33 °C10% 93%45%760 mm HgSW 235° 3.5 (8.5) m/s8.4
14:00Weather
Cloudy
33 °C9% 85%46%759 mm HgSW 231° 4.61 (9.61) m/s6.3
15:00Weather
Overcast
32 °C11% 91%53%759 mm HgSW 230° 5.89 (9.89) m/s3.7
16:00Weather
Overcast
31 °C13% 100%56%759 mm HgSW 226° 5.61 (9.61) m/s1.8
17:00Weather
Overcast
30 °C15% 100%61%761 mm HgSW 228° 5 (8) m/s0.6
18:00Weather
Patchy rain possible
29 °C16% (0.01 mm/hr)100%65%761 mm HgSW 234° 4.61 (4.81) m/s0.1
19:00Weather
Overcast
29 °C16% 100%67%761 mm HgWSW 237° 4.11 (4.94) m/s0
20:00Weather
Patchy rain possible
28 °C17% (0.01 mm/hr)100%67%761 mm HgWSW 242° 3.5 (4.72) m/s0
21:00Weather
Overcast
28 °C18% 100%70%761 mm HgWSW 250° 3.39 (4.42) m/s0
22:00Weather
Overcast
28 °C18% 100%71%761 mm HgWSW 254° 2.89 (3.81) m/s0
23:00Weather
Overcast
28 °C19% 100%72%761 mm HgW 262° 2 (2.53) m/s0
Tue, Aug 18, 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 26 to 34 °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 21%. 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 26 to 34 °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 6 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 21%) 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.

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.