Last updated: March 2, 2024
The weather in Portsmouth, United States, during March is characterized by an average temperature of 10°C (51°F). Highs can soar to 27°C (80°F), while lows may dip to -3°C (26°F). Typically, the humidity level in Portsmouth throughout March hovers around 82%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In March, Portsmouth averages 79 mm (3.1 inches) of rainfall, typically over the course of 10 rainy days. The month enjoys an average of 11 hours 59 minutes of daylight, with the sun shining for approximately 8 hours 21 minutes each day. Additionally, there is a 42% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In March, the UV Index in Portsmouth reaches a maximum of 8, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, during which unprotected skin may burn in as little as 15 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 | 1 | 3 | 5 | 6 | 7 | 8 | 7 | 6 | 4 | 2 | 1 | 1 |
| Exposure | Low | Moderate | High | VeryHigh | High | Moderate | Low | ||||||
| Time to burn | 45 min | 30 min | 25 min | 15 min | 25 min | 30 min | 45 min | ||||||