Last updated: March 2, 2024
The weather in Birch Bay, United States, during May is characterized by an average temperature of 13°C (56°F). Highs can soar to 25°C (77°F), while lows may dip to 5°C (42°F). Typically, the humidity level in Birch Bay throughout May hovers around 81%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In May, Birch Bay averages 73 mm (2.9 inches) of rainfall, typically over the course of 10 rainy days. The month enjoys an average of 15 hours 19 minutes of daylight, with the sun shining for approximately 10 hours 40 minutes each day. Additionally, there is a 42% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In May, the UV Index in Birch Bay reaches a maximum of 7, indicating a level of High exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 25 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 | 1 | 2 | 3 | 4 | 6 | 7 | 7 | 7 | 6 | 4 | 3 | 2 | 1 |
| Exposure | Low | Moderate | High | Moderate | Low | ||||||||
| Time to burn | 45 min | 30 min | 25 min | 30 min | 45 min | ||||||||