5-day weather forecast Reykjavík 17-08-2026
Weather forecast Reykjavík Monday, August 17 17.08.2026: sunny, temperature from 10 °C to 13 °C.
Precipitation probability 47%. Wind up to 6.81 m/s (gusts 9.94 m/s). Air humidity 67–85%, atmospheric pressure 754–761 mm Hg, UV index up to 2.9.
5 days at a glance — tap a day to open it
Sunrise 05:25
Sunset 21:37
Sunset 21:37
Waxing Crescent27% illuminated
Moonrise 13:28 · Moonset 21:02
Moonrise 13:28 · Moonset 21:02
Chart
Table
| Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index | ||
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Clear | 11 °C | 11% | 3% | 84% | 761 mm Hg | ESE 118° 2.89 (4.64) m/s | 0 |
| 01:00 | Clear | 11 °C | 11% | 3% | 85% | 761 mm Hg | ESE 107° 3.69 (5.69) m/s | 0 |
| 02:00 | Clear | 11 °C | 11% | 5% | 85% | 761 mm Hg | ESE 109° 4 (6.17) m/s | 0 |
| 03:00 | Clear | 11 °C | 12% | 9% | 85% | 761 mm Hg | ESE 117° 3.69 (5.64) m/s | 0 |
| 04:00 | Clear | 11 °C | 12% | 9% | 85% | 761 mm Hg | E 99° 3 (4.67) m/s | 0 |
| 05:00 | Clear | 10 °C | 11% | 4% | 85% | 760 mm Hg | E 82° 3.19 (5.33) m/s | 0 |
| 06:00 |  Sunny | 10 °C | 11% | 6% | 83% | 759 mm Hg | E 86° 3.31 (5.58) m/s | 0 |
| 07:00 | Sunny | 11 °C | 10% | 7% | 81% | 759 mm Hg | ESE 109° 3.11 (4.78) m/s | 0.2 |
| 08:00 | Sunny | 12 °C | 9% | 7% | 77% | 758 mm Hg | E 97° 3.69 (5.22) m/s | 0.4 |
| 09:00 | Sunny | 12 °C | 7% | 5% | 73% | 758 mm Hg | ESE 103° 4.11 (5.58) m/s | 0.9 |
| 10:00 | Sunny | 13 °C | 6% | 8% | 70% | 758 mm Hg | E 90° 4.69 (6.28) m/s | 1.6 |
| 11:00 | Sunny | 13 °C | 6% | 16% | 68% | 758 mm Hg | E 91° 5.11 (6.86) m/s | 2.2 |
| 12:00 |  Partly cloudy | 13 °C | 7% | 26% | 67% | 758 mm Hg | E 84° 5.81 (7.97) m/s | 2.7 |
| 13:00 | Partly cloudy | 13 °C | 11% | 57% | 68% | 757 mm Hg | E 87° 5.81 (8) m/s | 2.9 |
| 14:00 |  Patchy rain possible | 13 °C | 19% (0.04 mm/hr) | 85% | 69% | 756 mm Hg | E 93° 4.89 (6.86) m/s | 2.7 |
| 15:00 | Patchy rain possible | 13 °C | 31% (0.14 mm/hr) | 100% | 73% | 756 mm Hg | E 97° 4.31 (6.19) m/s | 2.4 |
| 16:00 |  Light drizzle | 12 °C | 44% (0.25 mm/hr) | 100% | 76% | 755 mm Hg | E 88° 3.89 (5.61) m/s | 1.6 |
| 17:00 | Light drizzle | 12 °C | 47% (0.27 mm/hr) | 100% | 78% | 755 mm Hg | E 80° 4 (5.83) m/s | 0.9 |
| 18:00 | Light drizzle | 12 °C | 47% (0.27 mm/hr) | 100% | 79% | 755 mm Hg | E 83° 4.11 (6.08) m/s | 0.5 |
| 19:00 | Patchy rain possible | 12 °C | 32% (0.09 mm/hr) | 100% | 79% | 755 mm Hg | E 80° 4.69 (6.83) m/s | 0.3 |
| 20:00 | Patchy rain possible | 13 °C | 28% (0.05 mm/hr) | 100% | 79% | 755 mm Hg | ENE 78° 5.69 (8.31) m/s | 0.1 |
| 21:00 | Patchy rain possible | 12 °C | 27% (0.02 mm/hr) | 100% | 81% | 755 mm Hg | E 80° 6.69 (9.72) m/s | 0 |
| 22:00 |  Patchy rain possible | 12 °C | 27% (0.03 mm/hr) | 100% | 82% | 754 mm Hg | ENE 74° 6.81 (9.94) m/s | 0 |
| 23:00 | Patchy rain possible | 12 °C | 32% (0.08 mm/hr) | 100% | 81% | 754 mm Hg | ENE 74° 6.5 (9.53) m/s | 0 |
Reykjavík 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.