Last updated: March 2, 2024
The weather in Portsmouth, United States, during July is characterized by an average temperature of 25°C (78°F). Highs can soar to 35°C (95°F), while lows may dip to 16°C (61°F). Typically, the humidity level in Portsmouth throughout July hovers around 81%.
Minimum temperature
Average temperature
Maximum temperature
Humidity
In July, Portsmouth averages 107 mm (4.2 inches) of rainfall, typically over the course of 14 rainy days. The month enjoys an average of 14 hours 32 minutes of daylight, with the sun shining for approximately 11 hours 9 minutes each day. Additionally, there is a 50% probability of sunny days during this period.
Precipitation
Rainy days
Sunshine hours
Chance of sun
In July, the UV Index in Portsmouth reaches a maximum of 10, 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 | 7 | 9 | 10 | 10 | 9 | 7 | 5 | 3 | 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 | ||||||