May weather forecastHihifo, Tonga
May
Weather in May
May signifies an alteration in the weather as the rainfall plummets to 115mm (4.53") stretched across 20 days in Hihifo. Concurrently, the relative humidity and cloud coverage hover around 78% and 47% respectively. However, the wind speed takes flight, reaching a tempo of 23.5km/h (14.6mph). Solar radiance becomes more prominent with longer sunshine durations. Lending the tropical city an enthralling ambiance, May turns Hihifo into a vibrant paradise.Temperature
Hihifo transitions into May recording an average high-temperature of a still moderately hot 28.1°C (82.6°F), closely aligning with the preceding month's temperature. Hihifo's May nights exhibit a subtle drop in temperature, averaging at a still warm 27°C (80.6°F), closely aligned with the daytime highs.Heat index
For May, the heat index is estimated at a tropical 32°C (89.6°F). Persisting in activity during long-term exposure might induce weariness, with subsequent heat cramps.Heat index evaluations are typically in the context of light winds and shaded environments. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', gauges the sensation of temperature factoring in the air's moisture content. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
Humidity
The average relative humidity in May in Hihifo is 78%.Rainfall
In Hihifo, during May, the rain falls for 19.8 days and regularly aggregates up to 115mm (4.53") of precipitation. Throughout the year, in Hihifo, Tonga, there are 249.1 rainfall days, and 1578mm (62.13") of precipitation is accumulated.Daylight
In Hihifo, the average length of the day in May is 11h and 22min.On the first day of May, sunrise is at 06:46 and sunset at 18:17. On the last day of the month, sunrise is at 06:55 and sunset at 18:10 +13.
Sunshine
In May, the average sunshine is 7.4h.UV index
The months with the highest UV index are January through May, July through September, November and December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 7 during May leads to these advisories:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Hihifo, Tonga
- Average high temperature in May: 28.1°C
The warmest month (with the highest average high temperature) is March (28.8°C).
The month with the lowest average high temperature is September (26.6°C).
- Average low temperature in May: 27°C
The months with the highest average low temperature are January and February (27.8°C).
The coldest month (with the lowest average low temperature) is August (25.3°C).
Average pressure in May
Hihifo, Tonga
- Average pressure in May: 1011.8mbar
The month with the highest atmospheric pressure is September (1013.4mbar).
The month with the lowest atmospheric pressure is January (1007.5mbar).
Average wind speed in May
Hihifo, Tonga
- Average wind speed in May: 23.5km/h
The windiest month (with the highest average wind speed) is June (27.7km/h).
The calmest month (with the lowest average wind speed) is March (17.9km/h).
Average humidity in May
Hihifo, Tonga
- Average humidity in May: 78%
The month with the highest relative humidity is September (79%).
The month with the lowest relative humidity is March (76%).
Average rainfall in May
Hihifo, Tonga
- Average rainfall in May: 115mm
The wettest month (with the highest rainfall) is January (290mm).
The driest month (with the least rainfall) is September (41mm).
Average rainfall days in May
Hihifo, Tonga
- Average rainfall days in May: 19.8 days
The month with the highest number of rainy days is December (25.9 days).
The month with the least rainy days is September (15.2 days).
Average daylight in May /
Average sunshine in May
Hihifo, Tonga
- Average daylight in May: 11h and 24min
The month with the longest days is December (Average daylight: 13h and 6min).
The month with the shortest days is June (Average daylight: 11h and 12min).
- Average sunshine in May: 7h and 24min
The month with the most sunshine is November (Average sunshine: 8h and 48min).
The month with the least sunshine is August (Average sunshine: 6h and 36min).
Average sunshine days in May
Hihifo, Tonga
- Average sunshine days in May: 7.6 days
The month with the most sunshine days is September (11.5 days).
The month with the least sunshine days is February (1.8 days).
Average UV index in May
Hihifo, Tonga
- Average UV index in May: 7
The months with the highest UV index are January, February, March, April, May, July, August, September, November and December (UV index 7).
The months with the lowest UV index are June and October (UV index 6).
Average cloud cover in May
Hihifo, Tonga
- Average cloud cover in May: 47
The month with the most cloud cover is August (Cloud cover 55).
The month with the least cloud cover is March (Cloud cover 44).
Average visibility in May
Hihifo, Tonga
- 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).





