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	20	20	20	20	20	19	19	20	20	20	20	21	22	22	23	22	21	21	20	20	20	20
Precipitation (mm/hr)	3.93	4.42	3.89	3.48	0.47	0.11	0.37	0.41	0.05	0.05	0.01	0	0.01	0.01	0.01	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 (%)	100	100	100	100	100	100	100	99	100	100	100	100	100	100	100	94	72	20	10	28	65	100	81	23
Rain chance (%)	87	89	87	85	58	38	52	55	33	31	25	24	23	21	20	17	11	5	5	7	10	16	13	6

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)	4.39	4.81	4.69	5	5	4.61	4.5	3.89	3	3.31	3.39	3.5	3.39	3.81	4.11	4.11	5.39	5.81	5.39	5.61	6	6.19	5.81	4.69
Wind gust (m/s)	9.03	9.89	9.03	9.39	9.42	8.61	6.72	5.42	4.19	4.11	4.5	5.11	5	5.33	5.92	6.19	7.14	7.31	8.11	9.61	10	9.81	9.31	8.64
Wind direction (°)	NNE 21°	NNE 14°	N 0°	N 1°	N 0°	NNE 14°	N 9°	NNE 20°	N 11°	NNE 17°	NNE 33°	NNE 22°	NNE 24°	NE 36°	NNE 28°	NNE 30°	NE 46°	NE 54°	NE 53°	NE 50°	NE 48°	NE 43°	NE 36°	NNE 15°

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 (%)	91	92	91	90	88	86	87	88	87	84	82	80	78	75	73	69	64	64	66	66	65	65	66	67

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)	762	762	762	763	763	764	764	764	764	765	765	765	764	764	764	764	764	765	765	766	767	767	767	767

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	0.1	0.3	0.6	0.7	1.1	2.2	2.6	2	1.2	0.6	0.2	0	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)	8.6	6.6	5.2	4.8	4.5	4.8	7	10.6	12	12.6	14.1	14	14	13.5	12.4	12.9	16.6	21.7	24.1	23.2	20.1	16.4	13.7	11.8
PM10 (µg/m³)	9.1	6.9	5.4	5	4.6	5	7.2	11	12.7	13.4	15	15.3	15.4	15	13.8	14.3	18.3	23.4	26	25.2	22.1	18.2	15.4	13.4
Ozone (O₃) (µg/m³)	41	42	43	43	41	38	37	38	41	45	51	59	65	68	69	67	59	48	40	39	42	44	45	45
NO₂ (µg/m³)	26	23.9	22.6	22.4	24.1	27	29.4	30.8	31.7	31.5	29.3	26	23.7	22.5	22.2	24.4	31.7	41.5	47.1	44.7	38	32	28.2	25
SO₂ (µg/m³)	11.6	10.8	10.9	11.4	12.6	14.3	15.7	16.5	16.9	17.3	17.6	17.8	17.8	17	16	16	18.3	21.6	23.5	22.5	20.1	17.8	16.1	14.5
CO (µg/m³)	169	167	170	174	179	187	196	211	229	235	220	194	175	171	173	180	194	211	220	212	196	183	177	175

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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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5-day weather forecast Tokyo Sep 17, 2026

Forecast from 19 °C to 23 °C and precipitation