5-day weather forecast Singapore Sep 18, 2026
30°Weather forecast Singapore Friday Sep 18, 2026: overcast, temperature from 27 °C to 30 °C.
Precipitation probability 22%. Wind up to 5.39 m/s (gusts 8.19 m/s). Air humidity 62–79%, atmospheric pressure 756–759 mm Hg, UV index up to 7.
5 days at a glance — tap a day to open it
Sunrise 06:55
Sunset 19:02
Sunset 19:02
First Quarter53% illuminated
Moonrise 12:45 · Moonset 00:11
Moonrise 12:45 · Moonset 00:11
Chart
Table
| Time | Weather | Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index |
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Clear | 28 °C | 7% | 12% | 72% | 758 mm Hg | ESE 106° 4.39 (4.53) m/s | 0 |
| 01:00 |  Partly cloudy | 28 °C | 8% | 26% | 72% | 758 mm Hg | ESE 105° 4.19 (4.31) m/s | 0 |
| 02:00 |  Overcast | 28 °C | 19% | 98% | 73% | 758 mm Hg | ESE 103° 4.19 (4.33) m/s | 0 |
| 03:00 | Overcast | 28 °C | 20% | 100% | 75% | 758 mm Hg | E 99° 4.5 (4.61) m/s | 0 |
| 04:00 | Overcast | 28 °C | 20% | 94% | 76% | 757 mm Hg | ESE 107° 4.89 (5.22) m/s | 0 |
| 05:00 |  Cloudy | 28 °C | 19% | 86% | 78% | 757 mm Hg | ESE 117° 5.39 (6) m/s | 0 |
| 06:00 | Overcast | 27 °C | 22% | 97% | 79% | 758 mm Hg | ESE 107° 5.19 (5.92) m/s | 0 |
| 07:00 |  Cloudy | 27 °C | 17% | 72% | 79% | 758 mm Hg | ESE 113° 4.5 (5.22) m/s | 6 |
| 08:00 |  Partly cloudy | 28 °C | 14% | 56% | 78% | 758 mm Hg | ESE 123° 4.81 (5.53) m/s | 7 |
| 09:00 |  Sunny | 28 °C | 8% | 5% | 76% | 759 mm Hg | ESE 118° 4.39 (4.92) m/s | 7 |
| 10:00 | Partly cloudy | 29 °C | 8% | 30% | 71% | 759 mm Hg | ESE 121° 4.31 (4.89) m/s | 7 |
| 11:00 | Partly cloudy | 29 °C | 7% | 37% | 65% | 759 mm Hg | SE 125° 3.31 (4.11) m/s | 7 |
| 12:00 | Sunny | 30 °C | 4% | 11% | 62% | 758 mm Hg | SSE 148° 2.89 (3.72) m/s | 7 |
| 13:00 | Partly cloudy | 30 °C | 5% | 27% | 63% | 758 mm Hg | S 175° 2.81 (2.92) m/s | 7 |
| 14:00 | Sunny | 29 °C | 6% | 22% | 67% | 758 mm Hg | S 183° 4 (8) m/s | 7 |
| 15:00 |  Patchy rain possible | 29 °C | 17% (0.04 mm/hr) | 83% | 70% | 757 mm Hg | S 188° 4 (8) m/s | 6 |
| 16:00 | Patchy rain possible | 29 °C | 20% (0.07 mm/hr) | 81% | 70% | 757 mm Hg | S 170° 4.19 (8.19) m/s | 6 |
| 17:00 | Partly cloudy | 29 °C | 10% | 51% | 70% | 756 mm Hg | SSE 158° 4.19 (4.22) m/s | 7 |
| 18:00 | Overcast | 29 °C | 16% | 95% | 68% | 757 mm Hg | SE 143° 3.69 (4) m/s | 6 |
| 19:00 | Sunny | 29 °C | 5% | 10% | 68% | 757 mm Hg | SE 132° 3.39 (3.92) m/s | 7 |
| 20:00 | Overcast | 29 °C | 16% | 94% | 69% | 758 mm Hg | SE 128° 3.5 (3.72) m/s | 0 |
| 21:00 | Overcast | 29 °C | 17% | 100% | 70% | 758 mm Hg | SE 127° 3.89 (4.31) m/s | 0 |
| 22:00 | Overcast | 29 °C | 17% | 99% | 70% | 759 mm Hg | ESE 120° 3.89 (4.14) m/s | 0 |
| 23:00 | Overcast | 28 °C | 16% | 93% | 69% | 759 mm Hg | ESE 108° 3.89 (4) 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.