5-day weather forecast Reykjavík 18-04-2026
Weather forecast Reykjavík today 18.04.2026: sunny, temperature from 2 °C to 7 °C.
Precipitation probability 79%. Wind up to 9.69 m/s (gusts 12.83 m/s). Air humidity 42–94%, atmospheric pressure 755–762 mm Hg, UV index up to 2.1.
Sunset 21:11
Moonrise 05:08 · Moonset below the horizon
| Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index | ||
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Patchy rain possible | 4 °C | 79% (0.03 mm/hr) | 68% | 77% | 755 mm Hg | WSW 254° 4 (5.42) m/s | 0 |
| 01:00 | Patchy rain possible | 4 °C | 89% (0.01 mm/hr) | 72% | 73% | 755 mm Hg | WSW 248° 2.61 (3.75) m/s | 0 |
| 02:00 | Patchy rain possible | 4 °C | 61% (0.01 mm/hr) | 76% | 71% | 755 mm Hg | W 259° 2.61 (3.92) m/s | 0 |
| 03:00 |  Moderate or heavy snow showers | 4 °C | 100% (0.1 mm/hr) | 71% | 77% | 756 mm Hg | W 270° 4.89 (7) m/s | 0 |
| 04:00 |  Blizzard | 2 °C | 100% (0.21 mm/hr) | 100% | 94% | 757 mm Hg | WNW 296° 9.69 (12.83) m/s | 0 |
| 05:00 | Blizzard | 2 °C | 100% (0.13 mm/hr) | 100% | 84% | 758 mm Hg | WNW 290° 8.5 (10.72) m/s | 0 |
| 06:00 |  Light snow showers | 3 °C | 69% (0.03 mm/hr) | 100% | 70% | 758 mm Hg | WNW 294° 6.61 (8.58) m/s | 0 |
| 07:00 |  Patchy rain possible | 3 °C | 78% (0.01 mm/hr) | 100% | 63% | 758 mm Hg | WNW 300° 5.19 (6.75) m/s | 0.1 |
| 08:00 |  Overcast | 3 °C | 0% | 92% | 58% | 759 mm Hg | NW 307° 4.5 (5.83) m/s | 0.3 |
| 09:00 |  Cloudy | 3 °C | 0% | 84% | 54% | 760 mm Hg | NW 311° 5 (6.42) m/s | 0.6 |
| 10:00 | Cloudy | 4 °C | 0% | 69% | 52% | 760 mm Hg | NW 312° 5.19 (6.58) m/s | 1 |
| 11:00 |  Partly cloudy | 4 °C | 0% | 32% | 51% | 761 mm Hg | NW 313° 4.89 (6) m/s | 1.5 |
| 12:00 | Partly cloudy | 4 °C | 0% | 48% | 51% | 761 mm Hg | NW 316° 4.19 (5.08) m/s | 1.9 |
| 13:00 |  Sunny | 7 °C | 0% | 0% | 42% | 761 mm Hg | NW 311° 4.19 (5.11) m/s | 2.1 |
| 14:00 | Sunny | 4 °C | 0% | 14% | 52% | 761 mm Hg | NW 311° 3.61 (4.33) m/s | 2.1 |
| 15:00 | Sunny | 4 °C | 0% | 10% | 52% | 761 mm Hg | WNW 303° 3.31 (3.97) m/s | 1.9 |
| 16:00 | Sunny | 4 °C | 0% | 9% | 51% | 761 mm Hg | NW 307° 2.39 (2.97) m/s | 1.5 |
| 17:00 | Sunny | 4 °C | 0% | 10% | 51% | 761 mm Hg | WNW 297° 1.89 (2.39) m/s | 1 |
| 18:00 | Sunny | 4 °C | 0% | 6% | 50% | 761 mm Hg | NW 308° 0.81 (1.03) m/s | 0.6 |
| 19:00 | Sunny | 4 °C | 0% | 4% | 51% | 761 mm Hg | ESE 123° 0.81 (1.06) m/s | 0.3 |
| 20:00 | Sunny | 4 °C | 0% | 5% | 53% | 761 mm Hg | SSE 158° 1.61 (2.17) m/s | 0.1 |
| 21:00 | Sunny | 3 °C | 0% | 6% | 57% | 762 mm Hg | SE 142° 1.89 (2.75) m/s | 0 |
| 22:00 |  Clear | 3 °C | 0% | 7% | 60% | 762 mm Hg | SE 130° 3 (4.42) m/s | 0 |
| 23:00 | Clear | 3 °C | 0% | 11% | 63% | 762 mm Hg | SE 124° 3.89 (5.83) m/s | 0 |
Frequently asked questions about the weather in Reykjavík
Today in Reykjavík the temperature ranges from 2 °C to 7 °C, wind up to 9.69 m/s. Check the detailed hourly forecast above for more information.
The precipitation probability in Reykjavík today is 79%. View the full multi-day forecast above to see the rain chances for each upcoming day.
The wind speed in Reykjavík today reaches up to 9.69 m/s with gusts up to 12.83 m/s. Check the detailed wind chart above for hourly wind data.
The air humidity in Reykjavík today ranges from 42% to 94%. View the humidity chart above for hourly details.
The UV index in Reykjavík today reaches up to 2.1. Check the UV index chart above for hourly values throughout the day.
The atmospheric pressure in Reykjavík today ranges from 755 to 762 mm Hg. View the pressure chart above for hourly readings.
Cloud cover in Reykjavík today reaches up to 100%. Check the cloud cover chart above for hourly details throughout the day.
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.