March weather forecast
Dededo, GU

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Weather in March

March delivers comparable weather conditions to February, embodying tropical delight. A subtle rise in temperatures is experienced, shifting back up to 82°F (27.8°C). It is marked with the same level of relative humidity as January, 78%. March carries the spirit of the spring equinox with longer daylight hours, enlivening the city and renewing the spirits of locals and tourists. The vibrant weather signifies the beginning of peak tourism season, allowing one to fully enjoy the island's panoply of natural beauty.

Temperature

Dededo greets March with an average high-temperature of a still moderately hot 82°F (27.8°C), marking a slight deviation from the preceding month. March nighttime temperatures in Dededo hover close to the daytime peak with an average of 80.1°F (26.7°C).

Heat index

The average heat index in March is evaluated at a hot 87.8°F (31°C). With extended exposure and activity, one might feel exhausted and experience heat cramps.
Heat index details are generally centered around shaded locations and a mild breeze. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', reflects the feeling of heat when considering both air temperature and humidity. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.

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 in Dededo. Rain falls for 20.2 days and accumulates 1.81" (46mm) of precipitation.

Daylight

In Dededo, 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, sunrise is at 6:17 am and sunset at 6:32 pm ChST.

Sunshine

In Dededo, the average sunshine in March is 8.1h.

UV index

January through August, October through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum daily UV index of 7 during March morphs into the following directions:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Boost your sun resistance with garments that are densely woven yet spacious.
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Frequently asked questions

What are March temperatures in Dededo?

The average high-temperature, in March, in Dededo, is 82°F (27.8°C), while the average low-temperature is 80.1°F (26.7°C). In March, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is evaluated at 87.8°F (31°C).

What is the most humid month in Dededo?

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

What is the average humidity in March in Dededo?

In March, the average relative humidity is 78%.

What is the driest month in Dededo?

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

How much does it rain in Dededo in March?

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

How many hours of daylight does Dededo have in March?

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

When are sunrise and sunset in March in Dededo?

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 Dededo, sunrise is at 6:17 am and sunset at 6:32 pm ChST.

How many hours of sunshine does Dededo have in March?

The average sunshine duration in March is 8.1h.

When is the highest UV index in Dededo?

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

How high is the UV index in March in Dededo?

In Dededo, Guam, the average daily maximum UV index in March is 7. A UV Index reading of 6 to 7 represents a high hazard to health 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
Dededo, GU

Average temperature in March - Dededo, 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
Dededo, GU

Average pressure in March - Dededo, 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
Dededo, GU

Average wind speed in March - Dededo, 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
Dededo, GU

Average humidity in March - Dededo, 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
Dededo, GU

Average rainfall in March - Dededo, 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
Dededo, GU

Average rainfall days in March - Dededo, 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 daylight in March /
Average sunshine in March
Dededo, GU

Average daylight in March / Average sunshine in March - Dededo, 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
Dededo, GU

Average sunshine days in March - Dededo, 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
Dededo, GU

Average UV index in March - Dededo, 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
Dededo, GU

Average cloud cover in March - Dededo, 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
Dededo, GU

Average visibility in March - Dededo, 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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Dededo, Guam, USA

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