Contents
- Weather in March
- Frequently asked questions
- Average temperature in March
- Average pressure in March
- Average wind speed in March
- Average humidity in March
- Average rainfall in March
- Average rainfall days in March
- Average sea temperature in March
- Average daylight in March
- Average sunshine in March
- Average sunshine days in March
- Average UV index in March
- Average cloud cover in March
- Average visibility in March
Weather in March
Temperature
The start of March sees the average high-temperature at a still moderately hot 82°F (27.8°C), showing little difference from February's 81.7°F (27.6°C). March nighttime temperatures hover close to the daytime peak with an average of 80.1°F (26.7°C).Heat index
Throughout March, the heat index is appraised at a hot 87.8°F (31°C). Fatigue might occur with continuous exposure and activity, potentially causing heat cramps.One should be cognizant that the heat index values are tailored for shaded spots and mild winds. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. 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 highly critical to babies and toddlers. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
Humidity
January, March through May, October through December, with an average relative humidity of 78%, are the most humid months.Rainfall
March is the month with the least rainfall. Rain falls for 20.2 days and accumulates 1.81" (46mm) of precipitation.Ocean temperature
In Hagåtña, in March, the average water temperature is 82.6°F (28.1°C).Note: Surface water temperatures falling between 77°F (25°C) and 84.2°F (29°C) are regarded as prime and extremely agreeable for enduring periods during any water activity.
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, sunrise is at 6:17 am and sunset at 6:32 pm ChST.
Sunshine
In March, the average sunshine 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 health risk from exposure to the Sun's UV rays for the ordinary person.Note: In March, the maximum UV index of 7 transforms into these recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Caution! The Sun's UV rays become stronger due to reflections from water and sand.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average March temperature?
What are the most humid months?
What is the average humidity in March?
What is the driest month?
How many days does it rain in March?
How warm is the water in March?
How many hours of daylight does Hagåtña have in March?
When are sunrise and sunset in March?
How long on average sun shines in March?
When is the highest UV index?
What is the UV index reading in March in Hagåtña?
Average temperature in March
Hagåtña, 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
Hagåtña, 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
Hagåtña, 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
Hagåtña, 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
Hagåtña, 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
Hagåtña, 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
Hagåtña, 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
Hagåtña, GU
- Average daylight in March: 12h and 1min
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 18min).
- Average sunshine in March: 8h and 1min
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
Hagåtña, 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
Hagåtña, 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
Hagåtña, 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
Hagåtña, 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).
Hagåtña, Guam, USA
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