Last updated: August 27, 2025
In July, the average temperature in Castle Douglas, United Kingdom reaches a pleasant 15°C (60°F). However, be prepared for a range, as temperatures can dip to a minimum of 7°C (45°F) and peak at a comfortable 27°C (80°F). Expect some wetter days, with 102 mm (4.0 in) of precipitation spread over about 14 days of the month. Plus, the average humidity sits at a notable 82%, making for a uniquely humid atmosphere.
In July in Castle Douglas, the average temperature is 15°C (60°F), with maximums reaching up to 27°C (80°F) and minimums dropping as low as 7°C (45°F). This range makes it an ideal time for travelers who enjoy comfortable weather and outdoor activities.
In Castle Douglas in July, the precipitation amount is 102 mm (4.0 in) over a period of 14 days.
In Castle Douglas in July humidity is 82%. With an average temperature of 15°C (60°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities feel sticky and draining, which can hinder your travel experience.
In Castle Douglas in July, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Castle Douglas.
UV Risk Categories
Weather in Castle Douglas varies notably across the year, with each month offering distinct climate conditions. This page compares July’s weather to other months in Castle Douglas, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 5°C (41°F) | 84 mm (3.3 inches) | 90% | low |
| February Weather | 5°C (41°F) | 155 mm (6.1 inches) | 88% | low |
| March Weather | 6°C (43°F) | 107 mm (4.2 inches) | 86% | moderate |
| April Weather | 8°C (46°F) | 50 mm (1.9 inches) | 85% | moderate |
| May Weather | 11°C (52°F) | 70 mm (2.8 inches) | 80% | high |
| June Weather | 14°C (57°F) | 104 mm (4.1 inches) | 83% | very high |
| July Weather | 15°C (60°F) | 102 mm (4.0 inches) | 82% | very high |
| August Weather | 15°C (59°F) | 137 mm (5.4 inches) | 82% | high |
| September Weather | 13°C (55°F) | 101 mm (4.0 inches) | 88% | moderate |
| October Weather | 10°C (50°F) | 148 mm (5.8 inches) | 90% | moderate |
| November Weather | 7°C (45°F) | 130 mm (5.1 inches) | 92% | low |
| December Weather | 5°C (42°F) | 126 mm (5.0 inches) | 89% | low |