Last updated: August 27, 2025
In August, the average temperature in Hemel Hempstead, United Kingdom hovers around 17°C (64°F), with a pleasant range that can dip as low as 8°C (46°F) and climb to a warm 34°C (93°F). Expect some wet days, as 71 mm (2.8 in) of precipitation can fall over approximately 13 days. With an average humidity of 76%, this month promises a balmy atmosphere.
In August in Hemel Hempstead, the average temperature is 17°C (64°F). The maximum can reach 34°C (93°F), and the minimum can be as low as 8°C (46°F). It's a great time to visit for those who enjoy mild weather with the possibility of warmer days.
In Hemel Hempstead in August, the total precipitation amount is 71 mm (2.8 in) occurring over the course of 13 days.
In Hemel Hempstead in August, humidity is 76%. With an average temperature of 17°C (64°F), this humidity feels like a warm, sticky embrace that can make outdoor activities feel sluggish and draining, challenging travelers to stay hydrated and seek respite in shaded areas or air-conditioned spaces.
In Hemel Hempstead in August, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Hemel Hempstead.
UV Risk Categories
Weather in Hemel Hempstead varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Hemel Hempstead, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 5°C (41°F) | 56 mm (2.2 inches) | 91% | low |
| February Weather | 6°C (43°F) | 52 mm (2.0 inches) | 89% | low |
| March Weather | 7°C (45°F) | 57 mm (2.2 inches) | 86% | moderate |
| April Weather | 9°C (49°F) | 34 mm (1.3 inches) | 85% | moderate |
| May Weather | 13°C (55°F) | 66 mm (2.6 inches) | 79% | high |
| June Weather | 16°C (61°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 | 17°C (64°F) | 71 mm (2.8 inches) | 76% | high |
| September Weather | 15°C (59°F) | 51 mm (2.0 inches) | 82% | high |
| October Weather | 11°C (53°F) | 91 mm (3.6 inches) | 90% | moderate |
| November Weather | 8°C (46°F) | 54 mm (2.1 inches) | 92% | low |
| December Weather | 6°C (43°F) | 83 mm (3.3 inches) | 92% | low |