5-day weather forecast Santarém Nov 18, 2026
36°Weather forecast Santarém Wednesday Nov 18, 2026: sunny, temperature from 26 °C to 36 °C.
Precipitation probability 57%. Wind up to 4.5 m/s (gusts 10.64 m/s). Air humidity 42–82%, atmospheric pressure 753–758 mm Hg, UV index up to 10.
5 days at a glance — tap a day to open it
Sunrise 06:16
Sunset 18:30
Sunset 18:30
Waxing Gibbous73% illuminated
Moonrise 13:45 · Moonset 01:26
Moonrise 13:45 · Moonset 01:26
Chart
Table
Wed, Nov 18, 2026
| Time | Weather | Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index |
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Patchy rain possible | 28 °C | 17% (0.1 mm/hr) | 74% | 62% | 756 mm Hg | E 94° 2.81 (5.81) m/s | 0 |
| 01:00 |  Patchy light drizzle | 27 °C | 36% (0.4 mm/hr) | 72% | 68% | 756 mm Hg | E 89° 2.89 (4.97) m/s | 0 |
| 02:00 | Patchy light drizzle | 27 °C | 47% (0.7 mm/hr) | 64% | 72% | 755 mm Hg | E 84° 3.11 (10.64) m/s | 0 |
| 03:00 |  Patchy light rain | 26 °C | 57% (1 mm/hr) | 64% | 77% | 755 mm Hg | ENE 76° 3.31 (10.61) m/s | 0 |
| 04:00 | Patchy light drizzle | 26 °C | 49% (0.67 mm/hr) | 59% | 78% | 755 mm Hg | ENE 72° 3.19 (10.33) m/s | 0 |
| 05:00 | Patchy light drizzle | 26 °C | 37% (0.35 mm/hr) | 58% | 80% | 756 mm Hg | ENE 68° 3 (9.97) m/s | 0 |
| 06:00 | Patchy rain possible | 26 °C | 18% (0.02 mm/hr) | 60% | 82% | 756 mm Hg | ENE 64° 2.69 (9.78) m/s | 0 |
| 07:00 |  Patchy rain possible | 27 °C | 19% (0.01 mm/hr) | 77% | 78% | 757 mm Hg | ENE 65° 3.19 (9.86) m/s | 0.1 |
| 08:00 | Patchy rain possible | 28 °C | 15% (0.01 mm/hr) | 71% | 73% | 757 mm Hg | ENE 64° 3.89 (9.5) m/s | 1 |
| 09:00 | Patchy rain possible | 30 °C | 10% (0.01 mm/hr) | 60% | 67% | 758 mm Hg | ENE 63° 4.39 (8.39) m/s | 3.2 |
| 10:00 |  Partly cloudy | 31 °C | 7% | 52% | 60% | 758 mm Hg | ENE 67° 4.5 (7.28) m/s | 9 |
| 11:00 | Partly cloudy | 33 °C | 5% | 45% | 55% | 757 mm Hg | ENE 71° 4.5 (6.53) m/s | 9 |
| 12:00 | Partly cloudy | 34 °C | 4% | 39% | 50% | 757 mm Hg | ENE 73° 4.5 (5.97) m/s | 9 |
| 13:00 | Partly cloudy | 35 °C | 3% | 35% | 47% | 756 mm Hg | ENE 72° 4.19 (5.28) m/s | 9 |
| 14:00 | Sunny | 35 °C | 2% | 24% | 44% | 755 mm Hg | ENE 71° 3.89 (4.81) m/s | 10 |
| 15:00 | Sunny | 36 °C | 2% | 15% | 42% | 754 mm Hg | ENE 68° 3.61 (4.47) m/s | 10 |
| 16:00 | Sunny | 35 °C | 2% | 22% | 43% | 753 mm Hg | ENE 68° 3.19 (4.31) m/s | 10 |
| 17:00 | Sunny | 34 °C | 2% | 18% | 44% | 753 mm Hg | ENE 70° 2.69 (4.33) m/s | 9 |
| 18:00 | Patchy rain possible | 33 °C | 8% (0.03 mm/hr) | 71% | 47% | 753 mm Hg | ENE 75° 2.19 (4.89) m/s | 8 |
| 19:00 |  Clear | 31 °C | 3% | 17% | 53% | 753 mm Hg | E 81° 2.11 (3.28) m/s | 0 |
| 20:00 | Clear | 31 °C | 3% | 18% | 55% | 754 mm Hg | ENE 77° 2.5 (5.5) m/s | 0 |
| 21:00 | Clear | 30 °C | 4% | 21% | 57% | 755 mm Hg | ENE 75° 2.69 (7.69) m/s | 0 |
| 22:00 |  Partly cloudy | 30 °C | 5% | 28% | 58% | 755 mm Hg | ENE 74° 2.81 (6.81) m/s | 0 |
| 23:00 | Partly cloudy | 30 °C | 6% | 37% | 60% | 755 mm Hg | ENE 75° 2.89 (7.89) m/s | 0 |
Wed, Nov 18, 2026
Santarém 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.