April weather forecastMerizo, GU
April
Weather in April
Entering April, a discernible change in temperature unfolds with the advent of summer. With high levels of warmth and humidity, the overall weather conditions suggest a classic tropical climate. The rise in temperature, peaking at 84.2°F (29°C) provides ample opportunities for visitors and locals alike to engage in various beach activities. Notwithstanding, April retains a reasonably high rainfall ratio, contributing to the overall humid conditions. With an extended duration of daylight, this month is particularly favored by sun enthusiasts.Temperature
Upon the onset of April, Merizo witnesses an average high-temperature of a still warm 82.9°F (28.3°C), showing a close resemblance to the prior month. Merizo records a slight downturn in temperature to an average of 81.1°F (27.3°C) during April nights.Heat index
The heat index in April is evaluated at a tropical 91.4°F (33°C). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly critical for babies and toddlers. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
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, Guam, in April, it is raining for 19.3 days, with typically 2.44" (62mm) of accumulated precipitation. In Merizo, during the entire year, the rain falls for 288.5 days and collects up to 60.08" (1526mm) of precipitation.Ocean temperature
In Merizo, the average seawater temperature in April is 82.9°F (28.3°C).Note: Water temperature between 77°F (25°C) and 84.2°F (29°C) is perceived as agreeably warm, making all water activities enjoyable without the risk of discomfort over lengthy durations.
Daylight
The average length of the day in April is 12h and 26min.On the first day of April, 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 Merizo, 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 estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 7 during April translates into the following guidance:
Guard against overexposure. Protection from sun-induced harm is essential. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Stay sun-safe with clothing that is both closely woven and worn loosely. Watch out! Reflections from sand and water can surge UV radiation exposure.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).
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).
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).
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%).
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").
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).
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).
Average daylight in April /
Average sunshine in April
Merizo, GU
- Average daylight in April: 12h and 24min
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 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).
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).
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).
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).
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).
