Last updated: August 27, 2025
In July, the average temperature in Welwyn Garden City, United Kingdom hovers around 18°C (65°F), but be prepared for a range: the minimum can dip to 9°C (48°F), while the maximum may soar to 36°C (96°F). Expect 67 mm (2.6 in) of precipitation over roughly 12 days, contributing to an average humidity level of 71%. Enjoy the varied climate as you explore!
In July in Welwyn Garden City, the average temperature is 18°C (65°F), with maximums reaching 36°C (96°F) and minimums dropping to as low as 9°C (48°F). This diverse temperature range makes Welwyn Garden City an ideal destination for travelers seeking both warm days and cooler evenings.
In Welwyn Garden City in July, the precipitation amount is 67 mm (2.6 in) distributed over 12 days.
In Welwyn Garden City in July humidity is 71%. With an average temperature of 18°C (65°F), this humidity feels like a warm embrace, making it a bit sticky and muggy, which can be slightly uncomfortable for traveling, especially if you're engaging in outdoor activities or exploring the city on foot.
In Welwyn Garden City 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 Welwyn Garden City.
UV Risk Categories
Weather in Welwyn Garden City varies notably across the year, with each month offering distinct climate conditions. This page compares July’s weather to other months in Welwyn Garden City, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 5°C (41°F) | 54 mm (2.1 inches) | 91% | low |
| February Weather | 6°C (43°F) | 51 mm (2.0 inches) | 89% | low |
| March Weather | 7°C (45°F) | 56 mm (2.2 inches) | 86% | moderate |
| April Weather | 9°C (49°F) | 32 mm (1.3 inches) | 85% | moderate |
| May Weather | 13°C (55°F) | 65 mm (2.5 inches) | 79% | high |
| June Weather | 16°C (62°F) | 74 mm (2.9 inches) | 80% | very high |
| July Weather | 18°C (65°F) | 67 mm (2.6 inches) | 71% | very high |
| August Weather | 18°C (64°F) | 72 mm (2.8 inches) | 76% | high |
| September Weather | 15°C (59°F) | 49 mm (1.9 inches) | 82% | high |
| October Weather | 12°C (53°F) | 86 mm (3.4 inches) | 90% | moderate |
| November Weather | 8°C (46°F) | 51 mm (2.0 inches) | 92% | low |
| December Weather | 6°C (43°F) | 83 mm (3.3 inches) | 92% | low |