5-day weather forecast Singapore 18-05-2026
Weather forecast Singapore tomorrow 18.05.2026: patchy rain possible, temperature from 27 °C to 30 °C.
Precipitation probability 100%. Wind up to 3.11 m/s (gusts 4 m/s). Air humidity 68–84%, atmospheric pressure 755–758 mm Hg, UV index up to 10.4.
Sunrise 06:56
Sunset 19:07
Sunset 19:07
Waxing Crescent2% illuminated
Moonrise 08:06 · Moonset 20:44
Moonrise 08:06 · Moonset 20:44
Chart
Table
| Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index | ||
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Partly cloudy | 28 °C | 0% | 32% | 79% | 758 mm Hg | ESE 114° 2 (2.92) m/s | 0 |
| 01:00 |  Patchy rain possible | 28 °C | 100% (0.91 mm/hr) | 77% | 81% | 757 mm Hg | ESE 105° 1.5 (2.22) m/s | 0 |
| 02:00 |  Moderate or heavy rain shower | 27 °C | 100% (2.62 mm/hr) | 79% | 83% | 756 mm Hg | E 79° 1.11 (1.83) m/s | 0 |
| 03:00 |  Light rain shower | 27 °C | 100% (1.94 mm/hr) | 72% | 84% | 756 mm Hg | NNE 33° 0.81 (1.39) m/s | 0 |
| 04:00 | Light rain shower | 27 °C | 100% (1.23 mm/hr) | 75% | 82% | 756 mm Hg | N 0° 0.81 (1.39) m/s | 0 |
| 05:00 | Light rain shower | 27 °C | 100% (1.09 mm/hr) | 57% | 79% | 756 mm Hg | NW 326° 0.5 (0.92) m/s | 0 |
| 06:00 | Light rain shower | 27 °C | 100% (0.63 mm/hr) | 71% | 77% | 756 mm Hg | W 277° 0.81 (1.56) m/s | 0 |
| 07:00 |  Patchy rain possible | 28 °C | 62% (0.05 mm/hr) | 80% | 74% | 757 mm Hg | W 266° 0.61 (1.17) m/s | 0 |
| 08:00 |  Overcast | 28 °C | 0% | 93% | 73% | 757 mm Hg | SSE 149° 0.19 (0.39) m/s | 0.3 |
| 09:00 |  Cloudy | 29 °C | 0% | 74% | 71% | 758 mm Hg | E 101° 0.31 (0.42) m/s | 1.2 |
| 10:00 |  Partly cloudy | 29 °C | 0% | 60% | 69% | 758 mm Hg | SSE 150° 0.61 (0.81) m/s | 3.5 |
| 11:00 | Partly cloudy | 29 °C | 0% | 46% | 68% | 758 mm Hg | S 175° 1 (1.31) m/s | 6.4 |
| 12:00 |  Sunny | 30 °C | 0% | 24% | 68% | 757 mm Hg | SSW 206° 1.61 (2.08) m/s | 9.3 |
| 13:00 | Patchy rain possible | 30 °C | 100% (0.11 mm/hr) | 73% | 70% | 756 mm Hg | SW 219° 2.31 (2.94) m/s | 10.4 |
| 14:00 | Patchy rain possible | 30 °C | 100% (0.44 mm/hr) | 71% | 72% | 756 mm Hg | SW 221° 3.11 (3.94) m/s | 9.9 |
| 15:00 |  Light rain shower | 29 °C | 100% (0.48 mm/hr) | 56% | 73% | 755 mm Hg | SW 228° 3.11 (4) m/s | 7.7 |
| 16:00 | Patchy rain possible | 29 °C | 100% (0.57 mm/hr) | 80% | 73% | 755 mm Hg | WSW 237° 2.19 (2.94) m/s | 4.9 |
| 17:00 | Patchy rain possible | 29 °C | 100% (0.08 mm/hr) | 53% | 72% | 755 mm Hg | SW 236° 2 (2.81) m/s | 2.2 |
| 18:00 | Patchy rain possible | 29 °C | 100% (0.16 mm/hr) | 81% | 72% | 755 mm Hg | WSW 237° 1.81 (2.56) m/s | 0.6 |
| 19:00 | Patchy rain possible | 29 °C | 100% (0.21 mm/hr) | 83% | 74% | 755 mm Hg | WSW 244° 1.5 (2.17) m/s | 0 |
| 20:00 | Light rain shower | 29 °C | 100% (1.53 mm/hr) | 86% | 75% | 756 mm Hg | WSW 255° 1 (1.53) m/s | 0 |
| 21:00 | Patchy rain possible | 28 °C | 100% (1.8 mm/hr) | 81% | 77% | 757 mm Hg | WSW 252° 0.89 (1.39) m/s | 0 |
| 22:00 | Patchy rain possible | 29 °C | 100% (0.05 mm/hr) | 71% | 75% | 758 mm Hg | WNW 301° 0.89 (1.39) m/s | 0 |
| 23:00 | Partly cloudy | 29 °C | 0% | 36% | 76% | 758 mm Hg | NW 325° 0.81 (1.22) m/s | 0 |
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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.