Last updated: March 2, 2024
The weather in Porthmadog, United Kingdom, during January is characterized by an average temperature of 6°C (43°F). Highs can soar to 10°C (51°F), while lows may dip to 0°C (32°F). Typically, the humidity level in Porthmadog throughout January hovers around 89%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In January, Porthmadog averages 121 mm (4.8 inches) of rainfall, typically over the course of 16 rainy days. The month enjoys an average of 8 hours 10 minutes of daylight, with the sun shining for approximately 2 hours 59 minutes each day. Additionally, there is a 20% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In January, the UV Index in Porthmadog reaches a maximum of 1, indicating a level of Low exposure. The most intense UV radiation typically occurs between 09:00 and 11:00, during which unprotected skin may burn in as little as 45 minutes.
| 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UVI | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 |
| Exposure | Low | ||||||||||||
| Time to burn | 45 min | ||||||||||||