Last updated: March 2, 2024
The weather in Grindavik, Iceland, during April is characterized by an average temperature of 5°C (41°F). Highs can soar to 9°C (49°F), while lows may dip to -2°C (28°F). Typically, the humidity level in Grindavik throughout April hovers around 80%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In April, Grindavik averages 134 mm (5.3 inches) of rainfall, typically over the course of 19 rainy days. The month enjoys an average of 15 hours 7 minutes of daylight, with the sun shining for approximately 6 hours 48 minutes each day. Additionally, there is a 25% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In April, the UV Index in Grindavik reaches a maximum of 3, indicating a level of Moderate exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 30 minutes.
| 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UVI | 1 | 1 | 2 | 2 | 3 | 3 | 4 | 4 | 3 | 3 | 2 | 1 | 1 |
| Exposure | Low | Moderate | Low | ||||||||||
| Time to burn | 45 min | 30 min | 45 min | ||||||||||