Last updated: March 2, 2024
The weather in Portstewart, United Kingdom, during July is characterized by an average temperature of 14°C (57°F). Highs can soar to 18°C (64°F), while lows may dip to 11°C (52°F). Typically, the humidity level in Portstewart throughout July hovers around 86%.
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Average temperature
Maximum temperature
Humidity
In July, Portstewart averages 110 mm (4.3 inches) of rainfall, typically over the course of 17 rainy days. The month enjoys an average of 16 hours 41 minutes of daylight, with the sun shining for approximately 13 hours 1 minutes each day. Additionally, there is a 24% probability of sunny days during this period.
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Chance of sun
In July, 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 | 4 | 6 | 7 | 8 | 8 | 7 | 5 | 4 | 2 | 1 |
| 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 | ||||||