March weather forecast
Hagåtña, GU

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Weather in March

March draws the curtain on winter and welcomes the upcoming spring season. Hagåtña, Guam prides itself on its consistent tropical weather, ensuring warm days and balmy evenings throughout the month. As the city prepares for spring, frequent, short spells of rain provide a welcome change. Differences in temperature or humidity levels are minimal, but a modest drop in rainfall to 1.81" (46mm) over 20.2 days provides slight relief. Visitors can look forward to experiencing the city's charm against a backdrop of changing seasons.

Temperature

The onset of March marks an average high-temperature of a still warm 82°F (27.8°C), hardly differing from February's 81.7°F (27.6°C). Hagåtña's March nights experience a subtle temperature dip to an average of 80.1°F (26.7°C).

Heat index

March's mean heat index is computed to be a hot 87.8°F (31°C). Continued exposure and engagement in activity might trigger tiredness and subsequently heat cramps.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', provides an understanding of perceived warmth by combining temperature and relative humidity. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.

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, the average seawater temperature in March is 82.6°F (28.1°C).
Note: Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

The average length of the day in March 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 Hagåtña, Guam, 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 estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index of 7 in March interprets into the following recommendations:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Take note! The UV strength of the Sun elevates when reflected off water and sand.
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Frequently asked questions

What are March temperatures in Hagåtña?

The average high-temperature and low-temperature in Hagåtña, Guam, during March are 82°F (27.8°C) and 80.1°F (26.7°C) respectively. The average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in March is computed to be 87.8°F (31°C).

What are the most humid months in Hagåtña?

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

What is the average humidity in March in Hagåtña?

In March, the average relative humidity is 78%.

What is the driest month in Hagåtña?

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

How much does it rain in Hagåtña in March?

In Hagåtña, Guam, in March, it is raining for 20.2 days, with typically 1.81" (46mm) of accumulated precipitation.

What is the ocean temperature in March in Hagåtña?

In Hagåtña, Guam, the average seawater temperature in March is 82.6°F (28.1°C). Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

What is the average length of the day in March in Hagåtña?

In March, the average day length is 12h and 4min.

When are sunrise and sunset in March in Hagåtña?

In March, on the first day of the month, sunrise is at 6:36 am and sunset at 6:29 pm. On the last day of the month, in Hagåtña, Guam, sunrise is at 6:17 am and sunset at 6:32 pm ChST.

How long on average sun shines in March in Hagåtña?

In March, the average sunshine duration in Hagåtña is 8.1h.

What are the months with the highest UV index in Hagåtña?

January through August, October through December, with an average maximum UV index of 7, are months with the highest UV index in Hagåtña.

How high is the UV index in March in Hagåtña?

In March, the average daily maximum UV index in Hagåtña is 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in March
Hagåtña, GU

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).

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Average pressure in March
Hagåtña, GU

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).

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Average wind speed in March
Hagåtña, GU

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).

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Average humidity in March
Hagåtña, GU

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%).

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Average rainfall in March
Hagåtña, GU

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").

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Average rainfall days in March
Hagåtña, GU

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).

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Average sea temperature in March
Hagåtña, GU

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).

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Average daylight in March /
Average sunshine in March
Hagåtña, GU

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).

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Average sunshine days in March
Hagåtña, GU

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).

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Average UV index in March
Hagåtña, GU

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).

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Average cloud cover in March
Hagåtña, GU

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).

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Average visibility in March
Hagåtña, GU

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).

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Hagåtña, Guam, USA

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