Last updated: August 27, 2025
In April, the average temperature in Thornhill, United Kingdom is a crisp 7°C (45°F). Expect a chilly minimum of -4°C (25°F), while temperatures can occasionally peak at a comfortable 20°C (69°F). During this month, you can anticipate about 47 mm (1.9 in) of precipitation over 10 days, accompanied by an average humidity of 85%. Stay prepared for a mix of cool weather and occasional rain!
In April in Thornhill, the average temperature is 7°C (45°F). Maximums can reach 20°C (69°F) and minimums can be as low as -4°C (25°F). Be prepared for a mix of cool and mild weather, making it an ideal time for outdoor activities and exploring the local sights.
In Thornhill in April, the precipitation amount is 47 mm (1.9 in) over a span of 10 days.
In Thornhill in April, humidity is 85%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that clings to your skin, making outdoor activities less enjoyable and requiring extra layers to stay comfortable while traveling.
In Thornhill in April, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Thornhill.
UV Risk Categories
Weather in Thornhill varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Thornhill, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 3°C (38°F) | 86 mm (3.4 inches) | 90% | low |
| February Weather | 4°C (39°F) | 161 mm (6.3 inches) | 88% | low |
| March Weather | 5°C (41°F) | 116 mm (4.6 inches) | 86% | moderate |
| April Weather | 7°C (45°F) | 47 mm (1.9 inches) | 85% | moderate |
| May Weather | 10°C (50°F) | 75 mm (2.9 inches) | 80% | high |
| June Weather | 13°C (56°F) | 112 mm (4.4 inches) | 83% | very high |
| July Weather | 15°C (59°F) | 103 mm (4.0 inches) | 82% | very high |
| August Weather | 14°C (57°F) | 144 mm (5.7 inches) | 82% | high |
| September Weather | 12°C (54°F) | 101 mm (4.0 inches) | 88% | moderate |
| October Weather | 9°C (48°F) | 142 mm (5.6 inches) | 90% | moderate |
| November Weather | 6°C (43°F) | 121 mm (4.8 inches) | 92% | low |
| December Weather | 4°C (40°F) | 122 mm (4.8 inches) | 89% | low |