May weather forecast
Apia, Samoa

May in Apia, Samoa brings about slightly cooler temperatures than the previous month. However, the average rainfall increases to 118mm (4.65"), slightly more than in April, but less than in June. Consequently, May provides an interesting contrast when compared to the surrounding months. The increase in relative humidity forecasts hazy mornings and sultry afternoons. Nevertheless, the coastal city continues to revel in its tropical climate with the sea offering a refreshing respite from the humidity.

Temperature

Apia observes a minor difference in average high-temperatures between April's 28.7°C (83.7°F) and May's 28.3°C (82.9°F). Apia records a mild decrease in temperature during the nights of May, averaging a still moderately hot 27°C (80.6°F).

Heat index

In May, the average heat index is calculated to be a hot 32°C (89.6°F). If one sustains activity during exposure, it could lead to a sense of fatigue, with a chance of heat cramps.
Heat index values are typically calculated for conditions of shade and a light breeze. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is achieved by amalgamating air temperature with the relative humidity readings. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.

Humidity

The average relative humidity in May in Apia, Samoa, is 77%.

Rainfall

In Apia, Samoa, during May, the rain falls for 22.5 days and regularly aggregates up to 118mm (4.65") of precipitation. Throughout the year, in Apia, there are 246.7 rainfall days, and 1451mm (57.13") of precipitation is accumulated.

Sea temperature

In May, the average sea temperature in Apia is 29.3°C (84.7°F).
Note: Engaging in water activities, such as swimming or diving, in temperatures from 25°C (77°F) to 29°C (84.2°F) is very pleasurable for extended periods, without any discomfort.

Daylight

In May, the average length of the day is 11h and 28min.
On the first day of the month, sunrise is at 06:36 and sunset at 18:11. On the last day of May, sunrise is at 06:44 and sunset at 18:05 +13.

Sunshine

In Apia, the average sunshine in May is 8h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in Apia. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Apia. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily high UV index of 7 in May translates into this advice:
Ward off overexposure. Defence against solar harm is crucial. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Take heed! Reflections of sand and water make the Sun's UV rays stronger.