Hagåtña
Guam, USA
Long-term weather forecast
Long-term weather forecast

April weather forecast and climate
Hagåtña, GU

April, like March, in Hagåtña, Guam, is a moderately hot spring month, with average temperature ranging between max 82.9°F (28.3°C) and min 81.1°F (27.3°C).

Temperature

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

Heat index

The average heat index is calculated to a tropical 90.5°F (32.5°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'apparent temperature', 'feels like', or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Additional factors like activity, metabolic differences, wind, and clothing affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

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

Rainfall

In April, the rain falls for 19.3 days. Throughout April, 2.44" (62mm) of precipitation is accumulated. Throughout the year, there are 288.5 rainfall days, and 60.08" (1526mm) of precipitation is accumulated.

Ocean temperature

In April, the average ocean temperature in Hagåtña 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

In April, the average length of the day in Hagåtña is 12.4h.

Sunshine

In Hagåtña, the average sunshine is 8.5h.

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 reading of 6 to 7 represents a high health hazard from the exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 7 in April transform into the following instructions:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.

What is the temperature in April in Hagåtña?

In Hagåtña, 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', 'apparent temperature'), that combines air temperature and relative humidity, in April is calculated to 90.5°F (32.5°C).

What is the most humid month in Hagåtña?

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

What is the average humidity in April in Hagåtña?

In Hagåtña, the average relative humidity in April is 78%.

How many days does it rain in April in Hagåtña?

In Hagåtña, Guam, in April, during 19.3 rainfall days, 2.44" (62mm) of precipitation is typically accumulated.

What is the ocean temperature in April in Hagåtña?

In April, the average ocean temperature in Hagåtña 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.

How many hours of daylight does Hagåtña have in April?

The average length of the day in April in Hagåtña is 12.4h.

How long on average sun shines in April in Hagåtña?

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

When is 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.

What is the UV index reading in April in Hagåtña?

In Hagåtña, the average daily maximum UV index in April is 7. A UV Index reading of 6 to 7 represents a high health threat from the exposure to the Sun's UV rays.
Average temperature in April - Hagåtña, GU
  • Average high temperature in April: 28.3°C

Warmest months (with the highest average high temperature) are July and August (29.3°C).
The month with the lowest average high temperature is February (27.6°C).

  • Average low temperature in April: 27.3°C

The month with the highest average low temperature is June (28.5°C).
The coldest month (with the lowest average low temperature) is February (26.5°C).

Average humidity in April - Hagåtña, GU
  • Average humidity in April: 78%

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 April - Hagåtña, GU
  • Average rainfall in April: 62mm

The wettest month (with the highest rainfall) is September (261mm).
The driest month (with the lowest rainfall) is March (46mm).

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

Months with the highest number of rainy days are July and August (28.9 days).
The month with the lowest number of rainy days is February (17.5 days).

Average sea temperature in April - Hagåtña, GU
  • Average sea temperature in April: 28.3°C

The best month for swimming (with the highest average sea temperature) is August (29.7°C).
The coldest month (with the lowest average sea temperature) is February (27.8°C).

Average daylight in April / Average sunshine in April - Hagåtña, GU
  • Average daylight in April: 12.4h

The month with the longest days is June (Average daylight: 12.9h).
The month with shortest days is December (Average daylight: 11.3h).

  • Average sunshine in April: 8.5h

The month with most sunshine is June (Average sunshine: 10.6h).
The month with least sunshine is November (Average sunshine: 6.3h).

Average UV index in April - Hagåtña, GU
  • Average UV index in April: 7

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).