May weather forecast
Merizo, GU

May constitutes the transition towards the much-anticipated dry season in Merizo. As the month advances, it lends to progressively hotter and drier days, coupled with the persistence of high humidity levels. The unique aspects of May include an increase in rainfall to 3.31" (84mm), an indicator of the continuing transformation to drier conditions. With an increased exposure to daylight and sunshine, the later part of the month introduces the quintessential summer season. The warm sea temperature enhances the allure of aquatic activities, thus rendering May a month of choice for beach-goers.

Temperature

In May, Merizo experiences a minor shift in meteorological conditions with average high-temperatures marked at a still moderately hot 84.2°F (29°C), closely mirroring the climate in April. Merizo's average low temperature, barely cooler than the daytime high, steadies at a still moderately hot 82.2°F (27.9°C) during May.

Heat index

During May, the heat index is evaluated at a hot 93.2°F (34°C). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.
It is important to note that the heat index values are for shaded areas and light wind scenarios. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a composite of temperature and humidity figures to convey how warm it feels. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.

Humidity

The months with the highest humidity in Merizo, Guam, are January, March through May, October through December, with an average relative humidity of 78%.

Rainfall

In Merizo, during May, the rain falls for 23.1 days and regularly aggregates up to 3.31" (84mm) of precipitation. Throughout the year, in Merizo, there are 288.5 rainfall days, and 60.08" (1526mm) of precipitation is accumulated.

Ocean temperature

In May, the average ocean temperature is 84°F (28.9°C).
Note: A water temperature from 77°F (25°C) to 84.2°F (29°C) is considered very warm and enjoyable, allowing water activities to be pleasant for extended periods without irritation.

Daylight

In Merizo, the average length of the day in May is 12h and 44min.
On the first day of the month, sunrise is at 6:00 am and sunset at 6:36 pm. On the last day of May, sunrise is at 5:53 am and sunset at 6:44 pm ChST.

Sunshine

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

UV index

The months with the highest UV index are January through August, October through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the ordinary person.
Note: During May, 7 as the daily maximum UV index converts into the following advice:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Be on guard! The reflective nature of sand and water boosts UV exposure.