April distinguishes itself as an equally warm month, albeit with a slight dip in relative humidity levels. The average high temperature maintains an upward trend to reach 31.2°C (88.2°F). This temperature increase, paired with rainfall figures reducing to 146mm (5.75"), underscores the prevailing dry, warm climate during April. It's the ideal time to enjoy the natural beauty and immaculate landscapes of
Yap,
Micronesia. As April offers a balanced blend of warm temperatures, diminished rainfall, and extended daylight hours, it sits favorably for sightseeing as well as exploration of outdoor landscapes.
Temperature
With average high temperatures of 31.2°C (88.2°F) and lows of 24.1°C (75.4°F), April is the warmest month.
Heat index
April's average heat index is estimated at a scorching 41°C (105.8°F). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', offers an insight into how hot it feels when we factor in moisture content. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.
Humidity
With an average relative humidity of 79%, April is the least humid month.
Rainfall
The month with the least rainfall is April, when the rain falls for 12.6 days and typically collects 146mm (5.75") of precipitation.
Sea temperature
The months with the coldest seawater are
January through April, with an average sea temperature of 28°C (82.4°F).
Note: Water temperatures between 25°C (77°F) and 29°C (84.2°F) are regarded as highly pleasant, making all water activities enjoyable without any discomfort over long durations.
Daylight
The average length of the day in April is 12h and 20min.
On the first day of April, sunrise is at 06:44 and sunset at 18:57. On the last day of the month, sunrise is at 06:30 and sunset at 18:58 +10.
Sunshine
With an average of 8.5h of sunshine, April has the most sunshine of the year.
UV index
February through
October, with an average maximum UV index of 12, are months with the highest UV index. A UV Index reading of 11, and higher, represents an extreme health hazard from unsafe exposure to UV radiation for the average person.
Note: The maximum UV index of 12 during April leads to these instructions:
Employ all crucial safeguards, unprotected skin could burn rapidly. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Broad-spectrum sunscreen with an SPF of 30 or above should be applied generously and reapplied every two hours and right after any outdoor activity or swim. Heads up! UV intensity is amplified by reflections from water and sand.