October in
Yap is synonymous with warm days and reasonably comfortable nights, a trend characteristic of previous months. The distinguishing attribute of October is a marked reduction in average rainfall to 304mm (11.97"), suggestive of drying conditions. The drop in precipitation along with an increase in sunlight hours points to a less humid atmosphere. The sea water maintains a steady warm temperature, welcoming for swimmers and divers. October's weather paves the way for an immersive experience into Yap's natural landscapes and cultural explorations.
Temperature
The transition into October is marked with an average high-temperature of a still tropical 30.9°C (87.6°F), showing an insignificant shift from
September's hot 30.9°C (87.6°F). Throughout October, Yap anticipates an average low-temperature of 23.7°C (74.7°F).
Heat index
In October, the heat index is estimated at a blistering 42°C (107.6°F). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
Consider that heat index readings are for situations in the shade and light wind. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', blends air temperature and moisture content to represent the felt temperature to humans. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. 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 relevant to children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.
Humidity
July through October, with an average relative humidity of 84%, are the most humid months.
Rainfall
In October, the rain falls for 20.1 days. Throughout October, 304mm (11.97") of precipitation is accumulated. Throughout the year, there are 211.6 rainfall days, and 3050mm (120.08") of precipitation is accumulated.
Sea temperature
The months with the warmest seawater are
May through
December, with an average sea temperature of 29°C (84.2°F).
Note: For engaging in any water activities, temperatures from 25°C (77°F) to 29°C (84.2°F) are viewed as outstanding and exceptionally pleasing for prolonged durations.
Daylight
The average length of the day in October is 11h and 55min.
On the first day of the month, sunrise is at 06:35 and sunset at 18:38. On the last day of October, sunrise is at 06:37 and sunset at 18:24 +10.
Sunshine
October has the least sunshine of the year, with an average of 5.5h of sunshine.
UV index
February through October, with an average maximum UV index of 12, are months with the highest UV index. A UV Index value of 11, and more, symbolizes an ultimate health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: In October, an average UV index of 12 transforms into the following instructions:
Carry out all important precautions, unprotected skin could get burns in no time. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. After a swim or outdoor exercise, one should liberally reapply broad-spectrum sunscreen with a sun protection factor of 30 or higher. Notice! The Sun's UV exposure elevates with sand and water reflections.