5-day weather forecast Singapore 21-05-2026

Weather forecast Singapore Thursday, May 21 21.05.2026: partly cloudy, temperature from 28 °C to 30 °C.

Precipitation probability 100%. Wind up to 3.61 m/s (gusts 5.28 m/s). Air humidity 67–77%, atmospheric pressure 755–758 mm Hg, UV index up to 10.

Sunrise 06:56
Sunset 19:07

Waxing Crescent24% illuminated
Moonrise 11:21 · Moonset 23:52

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← Wed, May 20

Thu, May 21, 2026

Forecast from 28 °C to 30 °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)	29	29	29	29	28	28	28	28	28	29	29	30	30	30	30	30	30	30	30	30	30	30	29	29
Precipitation (mm/hr)	0	0	0	0	0.87	2.4	0.88	0.35	1.89	0.23	1.17	0	0	0	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 (%)	22	27	32	30	84	80	81	72	87	88	81	44	52	57	56	43	56	22	51	49	50	43	35	28
Rain chance (%)	0	0	0	0	100	100	100	100	100	100	100	0	0	0	82	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)	0.81	0.81	0.19	0.19	0.61	1	1.39	1.5	1.69	1.81	2.61	3	3.19	3.11	2.89	2.69	2.61	2.61	2.69	2.89	3.39	3.5	3.5	3.61
Wind gust (m/s)	1.17	1.19	0.31	0.28	0.89	1.58	2.25	2.53	3.08	2.53	3.64	4.5	4.81	4.67	4.36	3.61	3.44	3.47	3.69	4.25	5.03	5.11	5.19	5.28
Wind direction (°)	SW 222°	SSW 213°	WSW 243°	SSE 161°	SSW 211°	SSW 206°	SSW 193°	S 191°	S 174°	SSE 165°	S 178°	S 186°	S 187°	SSW 193°	SSW 192°	S 189°	S 178°	SSE 167°	SSE 149°	SE 134°	SE 126°	ESE 123°	ESE 120°	ESE 117°

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 (%)	70	71	72	73	74	77	76	77	77	75	75	72	69	68	68	68	68	67	68	71	72	73	74	74

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	756	755	755	755	756	756	757	758	758	758	757	757	756	755	755	755	755	756	757	757	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	0.3	1.4	3.6	7	9.4	10	7.8	5.2	3.5	1.8	0.6	0	0	0	0	0

← Wed, May 20

Thu, May 21, 2026

Singapore 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 →