May weather forecast
Williamsburg, FL

The last month of the spring, May, is a tropical month in Williamsburg, Florida, with temperature in the range of an average low of 68.9°F (20.5°C) and an average high of 86.5°F (30.3°C).

Temperature

The weather during May records an average high-temperature of a hot 86.5°F (30.3°C), closely mirroring the preceding month. In May, Williamsburg's temperature tends to fall to an average low of 68.9°F (20.5°C) during the night.

Heat index

The heat index in May is calculated to be a torrid 96.8°F (36°C). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'real feel' or 'feels like', is achieved by amalgamating air temperature with the relative humidity readings. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

In Williamsburg, the average relative humidity in May is 72%.

Rainfall

In May, the rain falls for 11.1 days. Throughout May, 0.91" (23mm) of precipitation is accumulated. Throughout the year, in Williamsburg, there are 126.6 rainfall days, and 9.06" (230mm) of precipitation is accumulated.

Daylight

In May, the average length of the day in Williamsburg is 13h and 34min.
On the first day of the month, sunrise is at 6:44 am and sunset at 8:01 pm. On the last day of May, sunrise is at 6:28 am and sunset at 8:18 pm EDT.

Sunshine

In May, the average sunshine in Williamsburg is 10.5h.

UV index

The months with the highest UV index in Williamsburg, Florida, are May through September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: In May, the average maximum UV index of 7 translates into the following recommendations:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.