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
Sunset 19:07
Waxing Crescent24% illuminated
Moonrise 11:21 · Moonset 23:52
Moonrise 11:21 · Moonset 23:52
Chart
Table
Thu, May 21, 2026
| Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index | ||
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Clear | 29 °C | 0% | 22% | 70% | 757 mm Hg | SW 222° 0.81 (1.17) m/s | 0 |
| 01:00 |  Partly cloudy | 29 °C | 0% | 27% | 71% | 756 mm Hg | SSW 213° 0.81 (1.19) m/s | 0 |
| 02:00 | Partly cloudy | 29 °C | 0% | 32% | 72% | 756 mm Hg | WSW 243° 0.19 (0.31) m/s | 0 |
| 03:00 | Partly cloudy | 29 °C | 0% | 30% | 73% | 755 mm Hg | SSE 161° 0.19 (0.28) m/s | 0 |
| 04:00 |  Patchy rain possible | 28 °C | 100% (0.87 mm/hr) | 84% | 74% | 755 mm Hg | SSW 211° 0.61 (0.89) m/s | 0 |
| 05:00 |  Light rain shower | 28 °C | 100% (2.4 mm/hr) | 80% | 77% | 755 mm Hg | SSW 206° 1 (1.58) m/s | 0 |
| 06:00 | Light rain shower | 28 °C | 100% (0.88 mm/hr) | 81% | 76% | 756 mm Hg | SSW 193° 1.39 (2.25) m/s | 0 |
| 07:00 |  Patchy rain possible | 28 °C | 100% (0.35 mm/hr) | 72% | 77% | 756 mm Hg | S 191° 1.5 (2.53) m/s | 0 |
| 08:00 |  Light rain shower | 28 °C | 100% (1.89 mm/hr) | 87% | 77% | 757 mm Hg | S 174° 1.69 (3.08) m/s | 0.3 |
| 09:00 | Patchy rain possible | 29 °C | 100% (0.23 mm/hr) | 88% | 75% | 758 mm Hg | SSE 165° 1.81 (2.53) m/s | 1.4 |
| 10:00 | Light rain shower | 29 °C | 100% (1.17 mm/hr) | 81% | 75% | 758 mm Hg | S 178° 2.61 (3.64) m/s | 3.6 |
| 11:00 |  Partly cloudy | 30 °C | 0% | 44% | 72% | 758 mm Hg | S 186° 3 (4.5) m/s | 7 |
| 12:00 | Partly cloudy | 30 °C | 0% | 52% | 69% | 757 mm Hg | S 187° 3.19 (4.81) m/s | 9.4 |
| 13:00 | Partly cloudy | 30 °C | 0% | 57% | 68% | 757 mm Hg | SSW 193° 3.11 (4.67) m/s | 10 |
| 14:00 | Patchy rain possible | 30 °C | 82% (0.01 mm/hr) | 56% | 68% | 756 mm Hg | SSW 192° 2.89 (4.36) m/s | 7.8 |
| 15:00 | Partly cloudy | 30 °C | 0% | 43% | 68% | 755 mm Hg | S 189° 2.69 (3.61) m/s | 5.2 |
| 16:00 | Partly cloudy | 30 °C | 0% | 56% | 68% | 755 mm Hg | S 178° 2.61 (3.44) m/s | 3.5 |
| 17:00 |  Sunny | 30 °C | 0% | 22% | 67% | 755 mm Hg | SSE 167° 2.61 (3.47) m/s | 1.8 |
| 18:00 | Partly cloudy | 30 °C | 0% | 51% | 68% | 755 mm Hg | SSE 149° 2.69 (3.69) m/s | 0.6 |
| 19:00 | Partly cloudy | 30 °C | 0% | 49% | 71% | 756 mm Hg | SE 134° 2.89 (4.25) m/s | 0 |
| 20:00 | Partly cloudy | 30 °C | 0% | 50% | 72% | 757 mm Hg | SE 126° 3.39 (5.03) m/s | 0 |
| 21:00 | Partly cloudy | 30 °C | 0% | 43% | 73% | 757 mm Hg | ESE 123° 3.5 (5.11) m/s | 0 |
| 22:00 | Partly cloudy | 29 °C | 0% | 35% | 74% | 758 mm Hg | ESE 120° 3.5 (5.19) m/s | 0 |
| 23:00 | Partly cloudy | 29 °C | 0% | 28% | 74% | 758 mm Hg | ESE 117° 3.61 (5.28) m/s | 0 |
Thu, May 21, 2026
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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.