5-day weather forecast Reykjavík Sep 25, 2026
9°Weather forecast Reykjavík tomorrow Sep 25, 2026: patchy rain possible, temperature from 5 °C to 9 °C.
Precipitation probability 54%. Wind up to 8.81 m/s (gusts 11.39 m/s). Air humidity 74–93%, atmospheric pressure 723–743 mm Hg, UV index up to 0.2.
5 days at a glance — tap a day to open it
Sunrise 07:19
Sunset 19:19
Sunset 19:19
Full Moon100% illuminated
Moonrise 18:48 · Moonset 05:45
Moonrise 18:48 · Moonset 05:45
Chart
Table
| Time | Weather | Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index |
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Light rain shower | 9 °C | 54% (0.46 mm/hr) | 100% | 81% | 723 mm Hg | NNE 14° 6.11 (7.11) m/s | 0 |
| 01:00 |  Patchy rain possible | 9 °C | 28% (0.04 mm/hr) | 100% | 81% | 724 mm Hg | N 0° 6.31 (7.83) m/s | 0 |
| 02:00 | Patchy rain possible | 9 °C | 27% (0.01 mm/hr) | 100% | 84% | 725 mm Hg | N 4° 6.5 (7.53) m/s | 0 |
| 03:00 | Patchy rain possible | 9 °C | 30% (0.03 mm/hr) | 100% | 85% | 725 mm Hg | NNW 348° 5.89 (6.92) m/s | 0 |
| 04:00 | Light rain shower | 9 °C | 50% (0.29 mm/hr) | 100% | 89% | 727 mm Hg | NW 321° 6.11 (6.5) m/s | 0 |
| 05:00 | Patchy rain possible | 9 °C | 38% (0.08 mm/hr) | 100% | 89% | 728 mm Hg | NW 325° 5.5 (5.92) m/s | 0 |
| 06:00 | Patchy rain possible | 9 °C | 34% (0.05 mm/hr) | 100% | 89% | 728 mm Hg | NW 323° 4.81 (5.11) m/s | 0 |
| 07:00 | Patchy rain possible | 9 °C | 33% (0.03 mm/hr) | 100% | 89% | 729 mm Hg | NW 320° 5 (5.14) m/s | 0 |
| 08:00 | Patchy rain possible | 9 °C | 32% (0.02 mm/hr) | 100% | 90% | 730 mm Hg | NW 321° 5.31 (10.31) m/s | 0 |
| 09:00 | Patchy rain possible | 9 °C | 32% (0.03 mm/hr) | 100% | 90% | 731 mm Hg | NW 324° 5.39 (8.39) m/s | 0 |
| 10:00 | Patchy rain possible | 9 °C | 32% (0.03 mm/hr) | 100% | 88% | 731 mm Hg | NW 322° 5.69 (9.69) m/s | 0.1 |
| 11:00 | Patchy rain possible | 8 °C | 31% (0.03 mm/hr) | 100% | 87% | 732 mm Hg | NW 320° 6.19 (10.19) m/s | 0.1 |
| 12:00 |  Overcast | 8 °C | 27% | 100% | 86% | 734 mm Hg | NW 320° 6.39 (11.39) m/s | 0.2 |
| 13:00 | Overcast | 8 °C | 27% | 100% | 85% | 734 mm Hg | NW 318° 6.31 (9.31) m/s | 0.2 |
| 14:00 | Overcast | 8 °C | 27% | 100% | 85% | 734 mm Hg | NW 318° 6 (9) m/s | 0.2 |
| 15:00 |  Cloudy | 7 °C | 24% | 87% | 85% | 735 mm Hg | NW 325° 5.89 (8.89) m/s | 0.1 |
| 16:00 | Patchy rain possible | 7 °C | 27% (0.01 mm/hr) | 94% | 85% | 736 mm Hg | NNW 335° 5.11 (10.11) m/s | 0.1 |
| 17:00 |  Light rain shower | 8 °C | 43% (0.22 mm/hr) | 100% | 84% | 737 mm Hg | NNE 12° 6.39 (6.42) m/s | 0.1 |
| 18:00 | Patchy rain possible | 7 °C | 34% (0.06 mm/hr) | 100% | 86% | 738 mm Hg | NNE 20° 8.81 (9.64) m/s | 0 |
| 19:00 | Patchy rain possible | 6 °C | 45% (0.15 mm/hr) | 100% | 93% | 740 mm Hg | NNE 15° 8 (10.92) m/s | 0 |
| 20:00 | Patchy rain possible | 5 °C | 36% (0.05 mm/hr) | 100% | 91% | 740 mm Hg | NNE 19° 6.69 (11) m/s | 0 |
| 21:00 | Patchy rain possible | 6 °C | 28% (0.08 mm/hr) | 83% | 81% | 741 mm Hg | NNE 14° 7 (10.22) m/s | 0 |
| 22:00 |  Partly cloudy | 6 °C | 11% | 38% | 75% | 742 mm Hg | NNE 16° 7.11 (9.61) m/s | 0 |
| 23:00 | Patchy rain possible | 5 °C | 25% (0.05 mm/hr) | 100% | 74% | 743 mm Hg | NNE 14° 7.39 (9.72) 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.