May weather forecast
Falefa, Samoa

In May, Falefa experiences further increases in rainfall and humidity, marking the transition into the rainy season. The highest pressure to date, reaching 1011.1mb, suggests more stable weather patterns despite the rainfall. Patrick's the overall pattern of cloudy days with moderate sunshine continues. Sea temperatures begin to decrease slightly, providing a different experience for those venturing in the water. This period also witnesses a decrease in wind speed, reinforcing the steady but damp climate.

Temperature

With the onset of May, Falefa's average high-temperature clocks in at a still warm 28.3°C (82.9°F), showing a minor fluctuation from the previous month. Falefa registers a small shift from peak daytime temperatures, with a consistent average low-temperature of 27°C (80.6°F) during May.

Heat index

May's heat index is estimated at a hot 32°C (89.6°F). Uninterrupted activity during exposure could lead to a sense of exhaustion, possibly causing heat cramps.
Observations indicate that the heat index values are for shady locations with light wind. Exposure to the sun directly might heighten the heat index 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. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.

Humidity

In May, the average relative humidity is 77%.

Rainfall

In May, the rain falls for 22.5 days. Throughout May, 118mm (4.65") of precipitation is accumulated. In Falefa, during the entire year, the rain falls for 246.7 days and collects up to 1451mm (57.13") of precipitation.

Sea temperature

In Falefa, the average seawater temperature in May is 29.3°C (84.7°F).
Note: Swimming, diving, and similar water activities in temperatures ranging from 25°C (77°F) to 29°C (84.2°F) are seen as very agreeable and pleasurable for lengthy periods without discomfort.

Daylight

The average length of the day in May is 11h and 28min.
On the first day of the month, sunrise is at 06:35 and sunset at 18:11. On the last day of May, sunrise is at 06:43 and sunset at 18:04 +13.

Sunshine

In May, the average sunshine is 8h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In May, a daily maximum UV index of 7 leads to the following instructions:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Caution! The Sun's UV intensity grows with reflections off sand and water.