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)	3.89	3.81	3.61	3.39	3.19	2.89	2.89	2.81	2.5	2.89	3.31	3.81	3.81	3.31	3.5	4	5.69	6.11	5.39	5.5	5.61	4.81	4.31	4
Wind gust (m/s)	6.22	6.22	5.69	5.53	5.22	4.64	4.31	3.81	3.14	3	7.31	7.81	8.81	7.31	3.72	4.33	6.11	7.11	6.89	7.31	7.83	6.92	6.33	5.69
Wind direction (°)	E 98°	E 99°	ESE 104°	ESE 111°	ESE 117°	SE 130°	SSE 147°	SSE 147°	SE 138°	ESE 123°	ESE 112°	ESE 104°	E 101°	E 85°	ENE 78°	ESE 106°	ESE 118°	ESE 115°	ESE 104°	E 98°	E 96°	E 99°	ESE 106°	ESE 115°

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 (%)	77	77	76	76	76	74	72	66	59	53	48	43	40	38	43	48	55	61	65	68	69	70	71	73

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)	761	760	760	760	760	761	761	761	761	761	761	761	759	758	758	758	758	759	759	760	761	761	761	761

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	0.2	1.1	3.4	6.6	9.8	12	12	9.9	6.7	3.4	1.1	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)	34.7	38.6	44.1	50.9	56.2	64.5	77.5	62.6	39	33.6	31	28.2	26	24.7	22.5	21	20.7	19.5	20	19.7	20.1	22.2	23.5	22.8
PM10 (µg/m³)	37.5	41.1	46.6	53.2	58.9	67.1	79.9	66.6	44.2	39.5	36.1	31.5	27.7	26.4	24.1	22.9	24.3	22.4	22.9	22.6	22.9	25.1	26.3	25.3
Ozone (O₃) (µg/m³)	44	39	32	24	21	22	28	43	73	112	143	160	169	170	161	144	125	105	82	65	56	51	48	47
NO₂ (µg/m³)	23.4	24.5	26.9	30.1	32.7	35.4	37.6	36.5	29.3	18.7	10.4	6.7	5.2	4.8	5.3	6.8	8.8	11.3	14.1	16.4	17.7	18.5	18.7	17.8
SO₂ (µg/m³)	14.1	13.7	13.6	14	15.4	18.3	22.2	25.9	29.6	33.2	34.2	30.9	25.1	20.4	18.2	17.2	16.5	16.3	16.5	16.4	15.8	14.9	13.9	12.5
CO (µg/m³)	207	176	167	174	205	288	395	454	419	337	273	257	259	264	267	273	275	273	268	260	248	234	221	209

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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 Surabaya Sep 20, 2026

Forecast from 26 °C to 34 °C and precipitation

Cloud cover and precipitation probability

Wind speed and direction