5-day weather forecast Bangkok 21-04-2026

Weather forecast Bangkok Tuesday, April 21 21.04.2026: sunny, temperature from 29 °C to 39 °C.

No precipitation expected. Wind up to 8.5 m/s (gusts 10 m/s). Air humidity 21–69%, atmospheric pressure 752–758 mm Hg, UV index up to 11.

Sunrise 06:02
Sunset 18:32

Waxing Crescent17% illuminated
Moonrise 09:11 · Moonset 22:45

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Table

← Mon, Apr 20

Tue, Apr 21, 2026

Forecast from 29 °C to 39 °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)	30	30	30	29	29	30	30	30	31	32	34	36	38	37	39	39	37	36	34	32	31	30	31	30
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 (%)	7	10	52	61	46	37	19	9	16	12	5	13	16	5	13	9	3	6	7	4	5	5	8	4
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)	6.39	6	5.61	5.39	5.19	4.81	4.39	4.69	2.5	1.5	3.31	0.39	0.61	4.39	4	5.69	5.61	7.11	6.89	7.39	8.5	7.89	6.69	6.61
Wind gust (m/s)	7.97	7.64	7.17	7.06	6.89	6.33	5.86	5.89	2.89	1.72	3.81	0.47	0.69	5.06	4.61	6.56	6.44	8.17	7.94	8.69	10	9.44	8.25	8.22
Wind direction (°)	SSE 162°	SSE 164°	S 170°	SSE 167°	SSE 164°	SSE 165°	S 174°	S 187°	SW 227°	WSW 254°	S 188°	NW 319°	S 188°	SSE 149°	SSE 161°	SSE 161°	SSE 166°	SSE 152°	SSE 165°	SE 142°	S 178°	SSE 167°	S 179°	S 169°

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 (%)	64	65	68	69	69	68	66	60	54	48	41	29	23	28	21	24	30	36	42	47	61	61	62	62

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)	757	756	755	755	755	755	756	756	757	758	758	757	756	755	754	753	752	753	753	754	755	755	756	755

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	0.3	1.4	3.7	6.6	9.3	11	10.8	8.9	5.7	2.8	0.9	0.1	0	0	0	0	0

← Mon, Apr 20

Tue, Apr 21, 2026

Bangkok on the map

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.

Learn more about our methodology →