May weather forecastAlofi, Niue
May
Weather in May
Arriving in May, Alofi witnesses the full onset of the cooler season with lower temperatures and significantly reduced rainfall. Cloud cover increases compared with the preceding month. The sunshine hours notably decrease with an average of only 5.3 hours of sunshine per day. By this time, the sea temperature matches the air temperature, setting the stage for a balanced climate. The city enjoys a balance between warm and cool weather conditions through the month.Temperature
On the advent of May, Alofi's average high-temperature exhibits a minor adjustment to a still moderately hot 26.6°C (79.9°F) from April's 27.3°C (81.1°F). During May, Alofi's nighttime temperatures demonstrate a subtle cooling from daytime highs, stabilizing at a still warm 25.5°C (77.9°F).Humidity
In Alofi, the average relative humidity in May is 78%.Rainfall
In Alofi, in May, during 18.7 rainfall days, 90mm (3.54") of precipitation is typically accumulated. In Alofi, during the entire year, the rain falls for 229.1 days and collects up to 1209mm (47.6") of precipitation.Sea temperature
In Alofi, in May, the average water temperature is 27°C (80.6°F).Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.
Daylight
The average length of the day in May is 11h and 13min.On the first day of May, sunrise is at 06:34 and sunset at 17:58. On the last day of the month, sunrise is at 06:45 and sunset at 17:49 -11.
Sunshine
In May, the average sunshine is 5.3h.UV index
January through May, November and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for average individuals.Note: An average UV index of 7 in May transforms into this advice:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Notice! Sand and water reflections contribute to a stronger UV exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Alofi, Niue
- Average high temperature in May: 26.6°C
The warmest month (with the highest average high temperature) is March (28°C).
The month with the lowest average high temperature is August (24.6°C).
- Average low temperature in May: 25.5°C
The month with the highest average low temperature is March (27.2°C).
The coldest month (with the lowest average low temperature) is August (23.4°C).
Average pressure in May
Alofi, Niue
- Average pressure in May: 1013.2mbar
The months with the highest atmospheric pressure are August and September (1015.2mbar).
The month with the lowest atmospheric pressure is January (1008.4mbar).
Average wind speed in May
Alofi, Niue
- Average wind speed in May: 25.3km/h
The windiest month (with the highest average wind speed) is June (27.2km/h).
The calmest month (with the lowest average wind speed) is March (19.8km/h).
Average humidity in May
Alofi, Niue
- Average humidity in May: 78%
The months with the highest relative humidity are January, September and November (79%).
The months with the lowest relative humidity are March, April, June, July and August (77%).
Average rainfall in May
Alofi, Niue
- Average rainfall in May: 90mm
The wettest month (with the highest rainfall) is January (202mm).
The driest month (with the least rainfall) is June (50mm).
Average rainfall days in May
Alofi, Niue
- Average rainfall days in May: 18.7 days
The month with the highest number of rainy days is January (24.4 days).
The month with the least rainy days is November (14.8 days).
Average sea temperature in May
Alofi, Niue
- Average sea temperature in May: 27°C
The best months for swimming (with the highest average sea temperature) are January, February, March and April (28°C).
The coldest months (with the lowest average sea temperature) are July, August, September and October (25°C).
Average daylight in May /
Average sunshine in May
Alofi, Niue
- Average daylight in May: 11h and 12min
The month with the longest days is December (Average daylight: 13h and 18min).
The month with the shortest days is June (Average daylight: 11h and 0min).
- Average sunshine in May: 5h and 18min
The month with the most sunshine is December (Average sunshine: 8h and 30min).
The month with the least sunshine is June (Average sunshine: 5h and 12min).
Average sunshine days in May
Alofi, Niue
- Average sunshine days in May: 6.7 days
The month with the most sunshine days is November (13 days).
The month with the least sunshine days is February (2.9 days).
Average UV index in May
Alofi, Niue
- Average UV index in May: 7
The months with the highest UV index are January, February, March, April, May, November and December (UV index 7).
The months with the lowest UV index are June, July, August, September and October (UV index 6).
Average cloud cover in May
Alofi, Niue
- Average cloud cover in May: 50
The months with the most cloud cover are August and November (Cloud cover 55).
The month with the least cloud cover is March (Cloud cover 47).
Average visibility in May
Alofi, Niue
- Average visibility in May: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).
