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	1.69	1.31	2.11	2.61	2.81	2.61	2.39	2.61	2.39	1.89	2	3.11	4.81	6	5.39	5.81	5.5	5.5	5.31	5	4.5	4.11	4.11
Wind gust (m/s)	3.03	2.33	1.53	2.31	3.11	3.33	3.11	2.81	2.61	6.39	1.92	7	8.11	8.81	9	9.39	5.81	6.11	6.31	6.11	6.03	5.61	5.5	5.42
Wind direction (°)	ESE 110°	ESE 122°	SE 138°	SSE 150°	S 171°	SSW 203°	SW 225°	SW 230°	SW 222°	SSW 205°	SSW 195°	SSE 162°	ESE 123°	ESE 116°	ESE 122°	SE 130°	SE 133°	SE 130°	SE 131°	SE 129°	SE 128°	SE 140°	SE 144°	SSE 148°

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 (%)	73	73	73	79	78	78	78	76	74	72	70	66	63	64	66	66	68	71	71	72	72	74	76	80

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)	758	758	757	757	757	757	758	758	759	759	759	758	757	756	755	755	756	756	757	758	758	758	758	758

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	0.6	1.8	4.2	6.2	8.1	9.6	8.8	6.2	3.1	0.9	0.1	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)	6.1	6	5.3	4.6	4.3	4.4	4.5	3.9	3.9	3.8	3.6	2.9	2.8	2.7	2.8	2.8	2.7	2.9	5.4	5.8	7.9	10.2	12.4	12.7
PM10 (µg/m³)	7.2	7	6.3	5.5	5.2	5.1	5.3	4.6	4.7	4.6	4.4	3.5	3.4	3.4	3.6	3.5	3.5	3.6	6.1	6.6	8.6	10.9	13.2	13.5
Ozone (O₃) (µg/m³)	58	59	60	59	58	58	59	61	64	67	71	73	71	67	63	60	56	53	49	45	42	41	41	40
NO₂ (µg/m³)	10.8	9.6	8.6	8.3	8.3	8.3	8.3	8.4	8	6.8	5.3	4.2	3.8	3.9	4.3	5.1	6.2	7.8	10.1	12.8	14.8	15.2	14.9	15.5
SO₂ (µg/m³)	5.3	5.4	5.6	6.1	6.8	7.6	8.6	9.6	10	9.3	7.9	6.8	6.1	5.6	5.4	5.7	6.4	7.2	8.1	9	9.8	10	10.1	10.8
CO (µg/m³)	207	198	196	204	219	236	260	288	301	289	264	243	233	228	228	238	253	263	261	253	253	267	289	310

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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 Chennai Oct 15, 2026

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Wind speed and direction