November weather forecast
Umatac, GU

November hosts a significant reduction in rainfall to 4.69" (119mm), marking a shift away from the heavy precipitation of the prior months. The evident downfall in rainfall, compared to October, signifies a gradual approach towards the termination of the rainy season. The weather complements the declining rain with an increase in wind speed. With reduced cloud cover and longer daylight hours, Umatac, Guam welcomes a placid atmosphere. The need for sun protection remains important, reinforced by the persistent UV index.

Temperature

November's presence records an average high-temperature of a still moderately hot 84.2°F (29°C), closely mirroring October's climate. In November, a low-temperature average of 82.8°F (28.2°C) is characteristic of Umatac, marking a minor shift from daytime temperatures.

Heat index

The heat index value for November is estimated at a tropical 93.2°F (34°C). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.

Humidity

January, March through May, October through December, with an average relative humidity of 78%, are the most humid months.

Rainfall

In November, the rain falls for 24.3 days. Throughout November, 4.69" (119mm) of precipitation is accumulated. Throughout the year, there are 288.5 rainfall days, and 60.08" (1526mm) of precipitation is accumulated.

Daylight

In November, the average length of the day is 11h and 31min.
On the first day of the month, sunrise is at 6:15 am and sunset at 5:54 pm. On the last day of November, sunrise is at 6:27 am and sunset at 5:52 pm ChST.

Sunshine

November has the least sunshine of the year, with an average of 6.3h of sunshine.

UV index

January through August, October through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The average daily UV index of 7 in November transforms into the following instructions:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Enhance your sun protection with tightly woven, yet airy clothing.