April weather forecast
Umatac, GU

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Weather in April

The weather in Umatac, Guam throughout April involves a significant increase in rainfall, notching up at 2.44" (62mm) from the preceding month's low. This heightened precipitation heralds the imminent arrival of the rainy season. Bountiful sunshine hours and warm temperatures endorse the lush tropical surroundings with abundant daylight. Comparatively mild winds counterpoint the increase in rain showers. Persistent UV radiation and visibility remain stable, preserving the overall congenial weather scenario.

Temperature

The shift into April records an average high-temperature of a still warm 82.9°F (28.3°C), subtly varied from March's 82°F (27.8°C). Umatac, during the nights of April, averages a temperature close to its daytime high, at a still warm 81.1°F (27.3°C).

Heat index

The heat index in April is computed to be a tropical 91.4°F (33°C). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.
Research indicates the heat index considers values in shaded locales and with light winds. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', reflects the blend of air temperature and relative humidity to give a temperature impression. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.

Humidity

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

Rainfall

In Umatac, in April, it is raining for 19.3 days, with typically 2.44" (62mm) of accumulated precipitation. In Umatac, Guam, during the entire year, the rain falls for 288.5 days and collects up to 60.08" (1526mm) of precipitation.

Daylight

The average length of the day in April in Umatac is 12h and 26min.
On the first day of April in Umatac, sunrise is at 6:17 am and sunset at 6:33 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 6:36 pm ChST.

Sunshine

In April, the average sunshine in Umatac 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 vulnerability from exposure to the Sun's UV radiation for the average person.
Note: A maximum UV index of 7 in April translates into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
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Frequently asked questions

How hot is April in Umatac?

An average high-temperature, in April, in Umatac, is 82.9°F (28.3°C) and the average low-temperature is 81.1°F (27.3°C). In April, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is computed to be 91.4°F (33°C).

What are the most humid months in Umatac?

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

What is the average humidity in April in Umatac?

The average relative humidity in April is 78%.

How much does it rain in Umatac in April?

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

What is the average length of the day in April in Umatac?

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

When is the sunrise / sunset in April in Umatac?

On the first day of April in Umatac, Guam, sunrise is at 6:17 am and sunset at 6:33 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 Umatac?

The average sunshine duration in April in Umatac, Guam, is 8.5h.

When is the highest UV index in Umatac?

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

What is the UV index reading in April in Umatac?

In Umatac, the average daily maximum UV index in April is 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Umatac, GU

Average temperature in April - Umatac, 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
Umatac, GU

Average pressure in April - Umatac, 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
Umatac, GU

Average wind speed in April - Umatac, 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
Umatac, GU

Average humidity in April - Umatac, 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
Umatac, GU

Average rainfall in April - Umatac, 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
Umatac, GU

Average rainfall days in April - Umatac, 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 daylight in April /
Average sunshine in April
Umatac, GU

Average daylight in April / Average sunshine in April - Umatac, GU
  • Average daylight in April: 12h and 2min

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 April: 8h and 3min

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
Umatac, GU

Average sunshine days in April - Umatac, 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
Umatac, GU

Average UV index in April - Umatac, 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
Umatac, GU

Average cloud cover in April - Umatac, 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
Umatac, GU

Average visibility in April - Umatac, 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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Umatac, Guam, USA

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