March weather forecast
Inarajan, GU

March indicates the final days of winter in Inarajan, Guam, as temperatures begin to roam around the annual highs. Weather conditions show a tiny escalation humidity-wise, maintaining the tropical essence of the region, yet it is not discomforting. As February gives way to March, wind speed reduces to 15mph (24.1km/h), paving way for tranquil oceanic endeavors along the coast. The balance of 12.1 daylight hours and 8.1 sunlight hours, substantiate the delight of beach activities and day trips. March, however, records a decrease in rainfall to 1.81" (46mm) and thus, becomes the driest month of the year.

Temperature

February's transformation into March witnesses an average high-temperature of a still moderately hot 82°F (27.8°C) in Inarajan, noting a minor change from the preceding month. During the nights of March, Inarajan records an average temperature of 80.1°F (26.7°C), a minor drop from daytime peaks.

Heat index

The heat index value during March is evaluated at a hot 87.8°F (31°C). Prolonged exposure combined with continuous activity could lead to exhaustion, and possibly heat cramps.
Be aware that heat index ratings are designed for shaded locations and minor breezes. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.

Humidity

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

Rainfall

The month with the least rainfall in Inarajan is March, when the rain falls for 20.2 days and typically collects 1.81" (46mm) of precipitation.

Ocean temperature

In Inarajan, the average seawater temperature in March is 82.6°F (28.1°C).
Note: For swimming, diving, and similar activities, the water temperatures between 77°F (25°C) and 84.2°F (29°C) are considered delightful, allowing for extended periods of enjoyment without discomfort.

Daylight

In March, the average length of the day is 12h and 4min.
On the first day of the month, sunrise is at 6:36 am and sunset at 6:29 pm. On the last day of March, in Inarajan, sunrise is at 6:17 am and sunset at 6:32 pm ChST.

Sunshine

The average sunshine in March is 8.1h.

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 value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: In March, the maximum UV index of 7 translates into these guidelines:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Watch out! Sand and water enhance the UV exposure you receive.