5-day weather forecast Reykjavík 18-03-2026
Weather forecast Reykjavík today 18.03.2026: sunny, temperature from -2 °C to 2 °C.
Precipitation probability 100%. Wind up to 9.19 m/s (gusts 12.33 m/s). Air humidity 63–92%, atmospheric pressure 746–763 mm Hg, UV index up to 1.
Sunset 19:36
| Temperature | Precipitation | Cloud cover | Humidity | Pressure | Wind | UV Index | ||
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Clear | -1 °C | 0% | 13% | 76% | 746 mm Hg | N 1° 6.89 (9.14) m/s | 0 |
| 01:00 | Clear | -1 °C | 0% | 11% | 76% | 747 mm Hg | N 358° 6.81 (9.06) m/s | 0 |
| 02:00 | Clear | -1 °C | 0% | 6% | 76% | 749 mm Hg | N 0° 6.89 (9.17) m/s | 0 |
| 03:00 | Clear | -1 °C | 0% | 8% | 76% | 749 mm Hg | N 358° 6.61 (8.92) m/s | 0 |
| 04:00 |  Partly cloudy | 0 °C | 0% | 75% | 74% | 749 mm Hg | N 354° 6.69 (9.19) m/s | 0 |
| 05:00 | Clear | -1 °C | 0% | 12% | 74% | 752 mm Hg | N 354° 6.89 (9.25) m/s | 0 |
| 06:00 | Clear | -1 °C | 0% | 12% | 74% | 753 mm Hg | N 356° 6.5 (8.81) m/s | 0 |
| 07:00 | Clear | -2 °C | 0% | 10% | 74% | 755 mm Hg | N 2° 5.89 (8.22) m/s | 0 |
| 08:00 |  Sunny | -2 °C | 0% | 12% | 75% | 756 mm Hg | N 2° 5.5 (7.72) m/s | 0 |
| 09:00 | Sunny | -1 °C | 0% | 12% | 74% | 758 mm Hg | N 2° 5.81 (7.72) m/s | 0.2 |
| 10:00 | Sunny | -1 °C | 0% | 8% | 73% | 758 mm Hg | N 10° 5.39 (6.78) m/s | 0.3 |
| 11:00 | Sunny | -1 °C | 0% | 8% | 71% | 759 mm Hg | N 8° 4.69 (5.81) m/s | 0.6 |
| 12:00 | Sunny | 0 °C | 0% | 8% | 68% | 760 mm Hg | N 3° 4 (4.92) m/s | 0.8 |
| 13:00 | Sunny | 0 °C | 0% | 8% | 66% | 761 mm Hg | N 359° 3.39 (4.14) m/s | 1 |
| 14:00 | Sunny | 0 °C | 0% | 9% | 65% | 761 mm Hg | NNW 338° 3.39 (4.17) m/s | 1 |
| 15:00 |  Overcast | 0 °C | 0% | 100% | 64% | 761 mm Hg | NNW 348° 2.31 (2.92) m/s | 0.7 |
| 16:00 | Overcast | 0 °C | 0% | 100% | 63% | 762 mm Hg | NW 325° 1.81 (2.31) m/s | 0.5 |
| 17:00 |  Partly cloudy | 0 °C | 0% | 49% | 63% | 762 mm Hg | W 272° 1.81 (2.33) m/s | 0.3 |
| 18:00 | Partly cloudy | 0 °C | 0% | 49% | 64% | 763 mm Hg | SW 228° 1.69 (2.22) m/s | 0.1 |
| 19:00 | Partly cloudy | 0 °C | 0% | 54% | 67% | 763 mm Hg | S 171° 2.19 (3.03) m/s | 0 |
| 20:00 | Partly cloudy | 1 °C | 0% | 61% | 69% | 763 mm Hg | SSE 156° 3.89 (5.53) m/s | 0 |
| 21:00 |  Overcast | 1 °C | 0% | 100% | 70% | 762 mm Hg | SE 141° 5.19 (7.67) m/s | 0 |
| 22:00 |  Heavy snow | 2 °C | 100% (0.3 mm/hr) | 100% | 71% | 762 mm Hg | SSE 150° 6.81 (9.5) m/s | 0 |
| 23:00 |  Blizzard | 1 °C | 100% (0.94 mm/hr) | 100% | 92% | 761 mm Hg | SSE 152° 9.19 (12.33) m/s | 0 |
Frequently asked questions about the weather in Reykjavík
What is the weather in Reykjavík today?
Today in Reykjavík the temperature ranges from -2 °C to 2 °C, wind up to 9.19 m/s. Check the detailed hourly forecast above for more information.
Will it rain in Reykjavík this week?
The precipitation probability in Reykjavík today is 100%. View the full multi-day forecast above to see the rain chances for each upcoming day.
What is the wind speed in Reykjavík today?
The wind speed in Reykjavík today reaches up to 9.19 m/s with gusts up to 12.33 m/s. Check the detailed wind chart above for hourly wind data.
What is the humidity in Reykjavík today?
The air humidity in Reykjavík today ranges from 63% to 92%. View the humidity chart above for hourly details.
What is the UV index in Reykjavík today?
The UV index in Reykjavík today reaches up to 1. Check the UV index chart above for hourly values throughout the day.
What is the atmospheric pressure in Reykjavík today?
The atmospheric pressure in Reykjavík today ranges from 746 to 763 mm Hg. View the pressure chart above for hourly readings.
What is the cloud cover in Reykjavík today?
Cloud cover in Reykjavík today reaches up to 100%. Check the cloud cover chart above for hourly details throughout the day.
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.