March weather forecastInarajan, GU
March
Weather in March
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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Inarajan, GU
- Average high temperature in March: 82°F
The warmest months (with the highest average high temperature) are July and August (84.7°F).
The month with the lowest average high temperature is February (81.7°F).
- Average low temperature in March: 80.1°F
The month with the highest average low temperature is June (83.3°F).
The coldest month (with the lowest average low temperature) is February (79.7°F).
Average pressure in March
Inarajan, GU
- Average pressure in March: 29.87"Hg
The month with the highest atmospheric pressure is February (29.88"Hg).
The months with the lowest atmospheric pressure are August, September and October (29.79"Hg).
Average wind speed in March
Inarajan, GU
- Average wind speed in March: 15mph
The windiest month (with the highest average wind speed) is February (16.3mph).
The calmest month (with the lowest average wind speed) is August (9.6mph).
Average humidity in March
Inarajan, GU
- Average humidity in March: 78%
The months with the highest relative humidity are January, March, April, May, October, November and December (78%).
The month with the lowest relative humidity is August (76%).
Average rainfall in March
Inarajan, GU
- Average rainfall in March: 1.81"
The wettest month (with the highest rainfall) is September (10.28").
The driest month (with the least rainfall) is March (1.81").
Average rainfall days in March
Inarajan, GU
- Average rainfall days in March: 20.2 days
The months with the highest number of rainy days are July and August (28.9 days).
The month with the least rainy days is February (17.5 days).
Average sea temperature in March
Inarajan, GU
- Average sea temperature in March: 82.6°F
The best month for swimming (with the highest average sea temperature) is August (85.4°F).
The coldest month (with the lowest average sea temperature) is February (82°F).
Average daylight in March /
Average sunshine in March
Inarajan, GU
- Average daylight in March: 12h and 6min
The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 24min).
- Average sunshine in March: 8h and 6min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is November (Average sunshine: 6h and 18min).
Average sunshine days in March
Inarajan, GU
- Average sunshine days in March: 6.6 days
The month with the most sunshine days is March (6.6 days).
The month with the least sunshine days is September (1.1 days).
Average UV index in March
Inarajan, GU
- Average UV index in March: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, October, November and December (UV index 7).
The month with the lowest UV index is September (UV index 6).
Average cloud cover in March
Inarajan, GU
- Average cloud cover in March: 43
The months with the most cloud cover are January, August and October (Cloud cover 46).
The months with the least cloud cover are May and June (Cloud cover 39).
Average visibility in March
Inarajan, GU
- Average visibility in March: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





