April weather forecast
Merizo, GU

Weather in April

April, the same as March, is a moderately hot spring month in Merizo, Guam, with an average temperature fluctuating between 81.1°F (27.3°C) and 82.9°F (28.3°C).

Temperature

In Merizo, the average high-temperature in April is relatively the same as in March - a still moderately hot 82.9°F (28.3°C). In April, the average low-temperature is 81.1°F (27.3°C).

Heat index

The average heat index in April is appraised at a hot 90.5°F (32.5°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'felt air temperature', 'feels like', or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Additional factors like activity, differences in body mass, height, and shape, metabolic differences, and wind affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

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

Rainfall

In Merizo, during 19.3 rainfall days, 2.44" (62mm) of precipitation is typically accumulated. Throughout the year, there are 288.5 rainfall days, and 60.08" (1526mm) of precipitation is accumulated.

Ocean temperature

In Merizo, Guam, the average water temperature is 82.9°F (28.3°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 April is 12h and 26min.
On the first day of April in Merizo, sunrise is at 6:17 am and sunset at 6:32 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 6:36 pm ChST.

Sunshine

The average sunshine in April is 8.5h.

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 of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for average individuals.
Note: In April, the average maximum UV index of 7 translate into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in April in Merizo?

In April, the average high-temperature is 82.9°F (28.3°C), and the average low-temperature is 81.1°F (27.3°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, in April is appraised at 90.5°F (32.5°C).

What are the most humid months in Merizo?

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

What is the average humidity in April in Merizo?

The average relative humidity in April in Merizo, Guam, is 78%.

How many days does it rain in April in Merizo?

In Merizo, in April, it is raining for 19.3 days, with typically 2.44" (62mm) of accumulated precipitation.

How warm is the water in April in Merizo?

In Merizo, the average seawater temperature in April is 82.9°F (28.3°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 April in Merizo?

In Merizo, Guam, the average day length in April is 12h and 26min.

When are sunrise and sunset in April in Merizo?

On the first day of April in Merizo, Guam, sunrise is at 6:17 am and sunset at 6:32 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 6:36 pm ChST.

How long on average sun shines in April in Merizo?

In April, the average sunshine duration in Merizo, Guam, is 8.5h.

What is the month with the highest UV index in Merizo?

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

How high is the UV index in April in Merizo?

In Merizo, the average daily maximum UV index in April is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to Sun's UV rays.

Average temperature in April
Merizo, GU

Average temperature in April - Merizo, GU
  • Average high temperature in April: 82.9°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 April: 81.1°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 April
Merizo, GU

Average pressure in April - Merizo, GU
  • Average pressure in April: 29.86"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 April
Merizo, GU

Average wind speed in April - Merizo, GU
  • Average wind speed in April: 13.7mph

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 April
Merizo, GU

Average humidity in April - Merizo, GU
  • Average humidity in April: 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 April
Merizo, GU

Average rainfall in April - Merizo, GU
  • Average rainfall in April: 2.44"

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 April
Merizo, GU

Average rainfall days in April - Merizo, GU
  • Average rainfall days in April: 19.3 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 April
Merizo, GU

Average sea temperature in April - Merizo, GU
  • Average sea temperature in April: 82.9°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 April /
Average sunshine in April
Merizo, GU

Average daylight in April / Average sunshine in April - Merizo, GU
  • Average daylight in April: 12h and 26min

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 22min).

  • Average sunshine in April: 8h and 30min

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 April
Merizo, GU

Average sunshine days in April - Merizo, GU
  • Average sunshine days in April: 5.8 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 April
Merizo, GU

Average UV index in April - Merizo, GU
  • Average UV index in April: 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 April
Merizo, GU

Average cloud cover in April - Merizo, GU
  • Average cloud cover in April: 40

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 April
Merizo, GU

Average visibility in April - Merizo, GU
  • Average visibility in April: 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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