5-day weather forecast Osaka 18-05-2026

Weather forecast Osaka Monday, May 18 18.05.2026: sunny, temperature from 18 °C to 27 °C.

No precipitation expected. Wind up to 4.89 m/s (gusts 5.64 m/s). Air humidity 33–64%, atmospheric pressure 763–765 mm Hg, UV index up to 9.6.

Sunrise 04:53
Sunset 18:56

Waxing Crescent2% illuminated
Moonrise 05:31 · Moonset 20:59

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Table

← Sun, May 17

Mon, May 18, 2026

Tue, May 19 →

Forecast from 18 °C to 27 °C and precipitation

Temperature & Precipitation
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Temperature (°C)	20	19	19	18	18	18	19	21	23	24	26	27	27	27	27	27	27	26	25	23	23	23	22	22
Precipitation (mm/hr)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

Cloud cover and precipitation probability

Cloud cover & Rain chance
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Cloud cover (%)	0	0	0	0	0	5	4	2	0	0	0	0	0	0	0	0	4	7	10	11	12	10	8	6
Rain chance (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

Wind speed and direction

Wind & Wind gust
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Wind (m/s)	1.39	1.19	1.39	1.31	1.5	1.39	0.81	0.39	0.5	1.5	2.39	3.11	3.5	3.89	4.19	4.5	4.69	4.89	4.5	3.31	2.31	1.81	1.39	1.19
Wind gust (m/s)	2.31	2.11	2.53	2.36	2.78	2.67	1.25	0.47	0.58	1.72	2.75	3.58	4.03	4.5	4.83	5.17	5.42	5.64	5.58	4.58	3.25	2.58	2.03	1.81
Wind direction (°)	NE 52°	NE 37°	NE 43°	ENE 63°	NE 46°	ENE 63°	ENE 78°	ESE 102°	SSW 206°	SW 225°	WSW 238°	SW 236°	WSW 243°	WSW 239°	WSW 242°	WSW 238°	SW 235°	WSW 240°	WSW 247°	WSW 253°	WSW 251°	W 261°	W 266°	WNW 290°

Air humidity

Humidity
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Humidity (%)	45	46	46	48	50	52	52	48	44	38	34	33	35	36	36	36	36	40	46	51	55	59	62	64

Atmospheric pressure

Pressure
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Pressure (mm Hg)	764	764	764	764	764	764	765	765	765	765	764	764	764	764	764	764	763	764	764	764	764	764	764	764

Ultraviolet index

UV Index
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
UV Index	0	0	0	0	0	0	0.3	1.1	2.6	4.9	7.2	8.9	9.6	8.9	7.1	4.8	2.5	1	0.3	0	0	0	0	0

Air quality & pollen

Air quality
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
PM2.5 (µg/m³)	11.3	9.7	8.5	8	10.1	12.1	14.3	16.3	19.4	21.3	22	23.1	22.7	21.7	21.1	20.9	21	18.3	19.5	19.6	18.9	19	19.1	18.8
PM10 (µg/m³)	13.2	11.4	9.9	9.3	11.2	13.2	15.3	17.4	20.5	22.3	23.1	24	23.3	22.2	21.6	21.3	21.7	19.4	20.7	21.1	20.5	20.7	20.8	20.6
Ozone (O₃) (µg/m³)	145	139	130	120	107	93	80	69	60	52	44	37	32	26	21	25	44	73	102	132	162	185	197	202
NO₂ (µg/m³)	5	5.1	5.9	7.8	11.7	16.8	21.5	25.7	29.5	31.8	31.9	30.5	28.7	26.4	23.7	22.5	24.8	28.7	29.9	25.7	18.9	13.5	11	10
SO₂ (µg/m³)	7.2	6.3	5.8	6.3	8.4	11.4	14	16	17.5	18	16.7	14.4	12.4	10.3	8.5	10.1	18.8	30.8	37.9	35.1	27.4	20.9	18.1	16.7
CO (µg/m³)	186.9	171.9	160.9	159.9	171.9	193.9	210.9	219.9	224.9	227.9	226.9	223.9	222.9	224.9	229.9	232.9	235.9	236.9	235.9	227.9	216.9	211.9	219.9	233.9

← Sun, May 17

Mon, May 18, 2026

Tue, May 19 →

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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.

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