Last updated: March 2, 2024
The weather in Portstewart, United Kingdom, during June is characterized by an average temperature of 12°C (54°F). Highs can soar to 15°C (60°F), while lows may dip to 9°C (49°F). Typically, the humidity level in Portstewart throughout June hovers around 84%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In June, Portstewart averages 105 mm (4.1 inches) of rainfall, typically over the course of 17 rainy days. The month enjoys an average of 17 hours 17 minutes of daylight, with the sun shining for approximately 12 hours 57 minutes each day. Additionally, there is a 22% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In June, the UV Index in Portstewart reaches a maximum of 8, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 15 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 | 2 | 3 | 5 | 6 | 7 | 8 | 8 | 7 | 5 | 4 | 3 | 2 |
| Exposure | Low | Moderate | High | VeryHigh | High | Moderate | Low | ||||||
| Time to burn | 45 min | 30 min | 25 min | 15 min | 25 min | 30 min | 45 min | ||||||