5-day weather forecast Reykjavík Oct 20, 2026
6°Weather forecast Reykjavík Tuesday Oct 20, 2026: light rain shower, temperature from 5 °C to 6 °C.
Precipitation probability 44%. Wind up to 6.61 m/s (gusts 7.39 m/s). Air humidity 55–75%, atmospheric pressure 747–748 mm Hg, UV index up to 0.4.
5 days at a glance — tap a day to open it
Sunrise 08:33
Sunset 17:51
Sunset 17:51
Waxing Gibbous77% illuminated
Moonrise 17:20 · Moonset 00:10
Moonrise 17:20 · Moonset 00:10
Chart
Table
| Time | Weather | Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index |
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Patchy rain possible | 6 °C | 14% (0.01 mm/hr) | 100% | 55% | 747 mm Hg | S 169° 4.81 (5.61) m/s | 0 |
| 01:00 |  Overcast | 6 °C | 14% | 100% | 57% | 748 mm Hg | SSE 166° 5.19 (6.39) m/s | 0 |
| 02:00 | Patchy rain possible | 6 °C | 15% (0.01 mm/hr) | 100% | 57% | 747 mm Hg | SSE 162° 4.89 (6.11) m/s | 0 |
| 03:00 | Patchy rain possible | 6 °C | 24% (0.12 mm/hr) | 100% | 60% | 747 mm Hg | SSE 163° 5.19 (6.61) m/s | 0 |
| 04:00 | Patchy rain possible | 6 °C | 23% (0.1 mm/hr) | 100% | 62% | 748 mm Hg | S 173° 5.5 (6.81) m/s | 0 |
| 05:00 | Overcast | 6 °C | 17% | 100% | 65% | 747 mm Hg | SSE 163° 5.31 (6.81) m/s | 0 |
| 06:00 |  Light rain shower | 6 °C | 44% (0.46 mm/hr) | 100% | 67% | 747 mm Hg | SE 137° 5.89 (7.11) m/s | 0 |
| 07:00 | Light rain shower | 6 °C | 34% (0.24 mm/hr) | 100% | 69% | 747 mm Hg | SE 132° 6.5 (7.11) m/s | 0 |
| 08:00 | Light rain shower | 5 °C | 35% (0.23 mm/hr) | 100% | 73% | 748 mm Hg | SE 128° 6.31 (6.92) m/s | 0 |
| 09:00 | Light rain shower | 5 °C | 33% (0.16 mm/hr) | 100% | 74% | 748 mm Hg | ESE 120° 6.61 (7) m/s | 0 |
| 10:00 |  Patchy rain possible | 5 °C | 27% (0.07 mm/hr) | 100% | 75% | 748 mm Hg | ESE 117° 6.31 (6.92) m/s | 0 |
| 11:00 |  Overcast | 5 °C | 21% | 100% | 74% | 748 mm Hg | ESE 114° 5.11 (5.72) m/s | 0.2 |
| 12:00 | Patchy rain possible | 5 °C | 26% (0.13 mm/hr) | 78% | 74% | 748 mm Hg | ESE 116° 4.5 (5.19) m/s | 0.3 |
| 13:00 | Light rain shower | 5 °C | 34% (0.19 mm/hr) | 100% | 73% | 748 mm Hg | ESE 117° 4 (4.61) m/s | 0.4 |
| 14:00 | Light rain shower | 5 °C | 38% (0.29 mm/hr) | 100% | 72% | 747 mm Hg | ESE 122° 3.89 (4.42) m/s | 0.4 |
| 15:00 | Light rain shower | 6 °C | 30% (0.28 mm/hr) | 77% | 68% | 747 mm Hg | SE 128° 3.89 (4.33) m/s | 0.3 |
| 16:00 | Light rain shower | 6 °C | 36% (0.38 mm/hr) | 58% | 68% | 747 mm Hg | SE 135° 3.5 (3.94) m/s | 0.2 |
| 17:00 | Light rain shower | 6 °C | 36% (0.39 mm/hr) | 77% | 65% | 747 mm Hg | SE 132° 3.11 (3.5) m/s | 0 |
| 18:00 | Light rain shower | 6 °C | 25% (0.24 mm/hr) | 76% | 64% | 747 mm Hg | SE 126° 3.19 (3.61) m/s | 0 |
| 19:00 | Light rain shower | 6 °C | 30% (0.22 mm/hr) | 100% | 65% | 747 mm Hg | ESE 118° 3.31 (3.61) m/s | 0 |
| 20:00 | Patchy rain possible | 6 °C | 20% (0.05 mm/hr) | 100% | 65% | 748 mm Hg | ESE 112° 3 (3.11) m/s | 0 |
| 21:00 | Overcast | 6 °C | 17% | 99% | 66% | 747 mm Hg | E 89° 2.69 (2.72) m/s | 0 |
| 22:00 | Overcast | 6 °C | 17% | 100% | 66% | 748 mm Hg | ENE 75° 2.61 (5.61) m/s | 0 |
| 23:00 |  Cloudy | 5 °C | 15% | 87% | 66% | 747 mm Hg | ENE 58° 2.39 (7.39) 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.