Last updated: August 27, 2025
In January, the average temperature in Heol-y-Cyw, United Kingdom hovers around 6°C (43°F). Expect chilly days, with minimum temperatures dipping as low as -3°C (28°F) and highs reaching up to 13°C (56°F). Rainfall is quite common, totaling around 83 mm (3.3 in) over 12 days, while the air remains humid, averaging 88%. Prepare for a brisk and damp experience this month!
In January in Heol-y-Cyw, the average temperature is 6°C (43°F). The maximum can reach 13°C (56°F), while the minimum can drop to as low as -3°C (28°F). Make sure to pack warm clothing and be prepared for chilly days if you're planning to visit.
In Heol-y-Cyw in January, the precipitation amount is 83 mm (3.3 in) distributed over the course of 12 days.
In Heol-y-Cyw in January, humidity is 88%. With an average temperature of 6°C (43°F), this humidity feels like a damp chill that seeps into your bones, making traveling uncomfortable and prompting you to seek warm shelter frequently.
In Heol-y-Cyw in January, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Heol-y-Cyw.
UV Risk Categories
Weather in Heol-y-Cyw varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Heol-y-Cyw, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 6°C (43°F) | 83 mm (3.3 inches) | 88% | low | 
| February Weather | 6°C (44°F) | 111 mm (4.4 inches) | 88% | low | 
| March Weather | 7°C (45°F) | 101 mm (4.0 inches) | 86% | moderate | 
| April Weather | 9°C (49°F) | 56 mm (2.2 inches) | 84% | high | 
| May Weather | 12°C (54°F) | 80 mm (3.2 inches) | 80% | high | 
| June Weather | 15°C (60°F) | 85 mm (3.3 inches) | 80% | very high | 
| July Weather | 17°C (63°F) | 86 mm (3.4 inches) | 70% | very high | 
| August Weather | 16°C (62°F) | 106 mm (4.2 inches) | 73% | high | 
| September Weather | 15°C (59°F) | 92 mm (3.6 inches) | 79% | high | 
| October Weather | 12°C (54°F) | 146 mm (5.7 inches) | 89% | moderate | 
| November Weather | 9°C (48°F) | 111 mm (4.4 inches) | 90% | low | 
| December Weather | 7°C (45°F) | 144 mm (5.7 inches) | 89% | low |