5-day weather forecast Tokyo 18-05-2026

Weather forecast Tokyo Monday, May 18 18.05.2026: sunny, temperature from 20 °C to 27 °C.

No precipitation expected. Wind up to 8 m/s (gusts 9.92 m/s). Air humidity 40–63%, atmospheric pressure 762–764 mm Hg, UV index up to 9.1.

Sunrise 04:34
Sunset 18:41

Waxing Crescent2% illuminated
Moonrise 05:10 · Moonset 20:45

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Table

← Sun, May 17

Mon, May 18, 2026

Tue, May 19 →

Forecast from 20 °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)	21	20	20	20	20	20	20	21	22	23	24	25	26	27	27	27	26	24	23	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 (%)	8	6	5	5	4	4	2	2	2	0	0	0	0	0	0	0	0	0	0	0	0	2	2	3
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)	2.5	1.61	0.89	1.19	1.5	1.89	1.39	1.61	1.11	1.61	2.39	3.19	4.39	6	6.69	7.19	8	7.89	7.61	6.81	6.39	6.11	5.39	4.89
Wind gust (m/s)	3.75	2.36	1.33	1.78	2.19	2.81	1.97	2.14	1.42	1.97	2.92	3.81	5.06	6.89	7.72	8.28	9.19	9.33	9.92	9.86	9.39	9.08	8.14	7.42
Wind direction (°)	SSE 161°	SE 129°	ENE 71°	ENE 59°	E 79°	ENE 58°	E 98°	ESE 113°	E 100°	E 100°	SE 134°	SSE 158°	S 169°	S 175°	S 178°	S 183°	S 185°	S 180°	S 179°	S 182°	S 187°	S 188°	S 190°	SSW 194°

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 (%)	62	63	62	60	59	59	57	54	50	46	43	41	40	41	40	40	46	53	56	57	56	57	59	61

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	763	763	764	764	764	764	764	764	764	764	764	764	763	762	762	762	762	762	762	763	763	763	763

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	0.4	1.4	3	5.2	7.4	8.8	9.1	8.3	6.3	4	2.1	0.7	0.2	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)	22.3	22	23.7	28.2	32.2	34.9	37.3	39.8	43.5	45.8	49	49.2	48	46.9	47.2	49	48	46.5	46.4	47.1	44.8	40.6	36.5	34.1
PM10 (µg/m³)	24.8	24.5	26.2	30.3	34.1	36.9	39.3	41.8	45.4	47.6	50.7	50.7	49.6	48.3	48.5	50.3	49.7	48.4	48.5	49.1	46.9	42.6	38.3	35.5
Ozone (O₃) (µg/m³)	177	175	171	166	163	159	151	137	120	102	84	67	53	43	37	38	50	69	91	115	142	163	177	186
NO₂ (µg/m³)	11.7	16.1	22.8	27.9	29.5	29.7	30.6	33.2	36.7	40.5	45.3	50.4	54.1	55.1	54.6	54.1	54.4	54.7	53.5	49.9	44.7	39.4	33.5	27.4
SO₂ (µg/m³)	11.4	13.6	17.6	21.3	23.9	26.2	28.3	30.1	31.6	33.5	36	38.7	41.2	42.8	44.2	46.5	51.7	57.9	60.5	56.7	49.2	41.8	35.1	28.4
CO (µg/m³)	181.9	238.9	318.9	380.9	409.9	422.9	427.9	422.9	409.9	405.9	423.9	449.9	465.9	459.9	443.9	427.9	414.9	401.9	393.9	398.9	407.9	398.9	348.9	280.9

← 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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