May weather forecastNuku'alofa, Tonga

The Rugged scenic shores of Nuku'alofa in Tonga, with a beautiful clear waterfront

May

Weather in May

May sees a further continuation of the trend set in April. The weather undergoes a noticeable cooling from the hot and rainy season, the temperature scaling down to a comfortable range. Relative humidity also undergoes a slight elevation. Despite the scaled-down sunlight hours, the daylight remains ample enough to explore the surroundings. Sea temperatures follow the same trend, cooling gradually from the previous months.

Temperature

The commencement of May introduces an average high-temperature of a still warm 26.8°C (80.2°F), closely mirroring the preceding month. Nuku'alofa records a consistent low-temperature of 20.3°C (68.5°F) during May nights.

Humidity

In Nuku'alofa, the average relative humidity in May is 78%.

Rainfall

In May, the rain falls for 15 days. Throughout May, 111mm (4.37") of precipitation is accumulated. In Nuku'alofa, Tonga, during the entire year, the rain falls for 180 days and collects up to 1721mm (67.76") of precipitation.

Sea temperature

In May, the average sea temperature is 26.8°C (80.2°F).
Note: Water temperatures between 25°C (77°F) and 29°C (84.2°F) are regarded as very warm, ensuring all water activities are pleasurable for extended periods without feeling uneasy.

Daylight

In May, the average length of the day is 11h and 6min.
On the first day of May, sunrise is at 06:58 and sunset at 18:17. On the last day of the month, sunrise is at 07:10 and sunset at 18:06 +13.

Sunshine

In May, the average sunshine is 9h.

UV index

In Nuku'alofa, the average daily maximum UV index in May is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: A daily high UV index of 7 in May leads to these guidelines:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Attention! UV strength is notably upped by the reflection of sand and water.

Updated: Aug 30, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

During May, Nuku'alofa experiences an average high-temperature of 26.8°C (80.2°F) and a low-temperature of 20.3°C (68.5°F). In April, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is appraised at 33°C (91.4°F).

In May, the average relative humidity in Nuku'alofa is 78%.

In Nuku'alofa, in May, it is raining for 15 days, with typically 111mm (4.37") of accumulated precipitation.

In Nuku'alofa, the average seawater temperature in May is 26.8°C (80.2°F). 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.

The average day length in May is 11h and 6min.

In May, on the first day of the month, sunrise is at 06:58 and sunset at 18:17. On the last day of the month, sunrise is at 07:10 and sunset at 18:06 +13.

In Nuku'alofa, the average sunshine duration in May is 9h.

The average daily maximum UV index in May is 7. A UV Index value of 6 to 7 symbolizes a high hazard to health from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A May J J A S O N D

Apr

May

Jun

Average high temperature

28.5°C

26.8°C

25.8°C

Average low temperature

Average humidity

Average rainfall

Average rainfall days

Average sea temperature

Average daylight

Average sunshine

Average UV index

Average temperature in May
Nuku'alofa, Tonga

Average high temperature in May: 26.8°C

The warmest month (with the highest average high temperature) is February (29.9°C).
The month with the lowest average high temperature is August (24.8°C).

Average low temperature in May: 20.3°C

The month with the highest average low temperature is February (23.7°C).
The coldest month (with the lowest average low temperature) is July (18.1°C).

Average humidity in May
Nuku'alofa, Tonga

Average humidity in May: 78%

The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is November (73%).

Average rainfall in May
Nuku'alofa, Tonga

Average rainfall in May: 111mm

The wettest month (with the highest rainfall) is February (210mm).
The driest months (with the least rainfall) are June and July (95mm).

Average rainfall days in May
Nuku'alofa, Tonga

Average rainfall days in May: 15 days

The months with the highest number of rainy days are February and March (19 days).
The month with the least rainy days is October (11 days).

Average sea temperature in May
Nuku'alofa, Tonga

Average sea temperature in May: 26.8°C

The best month for swimming (with the highest average sea temperature) is March (28.1°C).
The coldest months (with the lowest average sea temperature) are August and September (23.8°C).

Average daylight in May /
Average sunshine in May
Nuku'alofa, Tonga

Average daylight in May: 11h and 6min

The month with the longest days is December (Average daylight: 13h and 24min).
The month with the shortest days is June (Average daylight: 10h and 54min).

Average sunshine in May: 9h

The months with the most sunshine are January and March (Average sunshine: 18h).
The month with the least sunshine is August (Average sunshine: 3h).

Average UV index in May
Nuku'alofa, Tonga

Average UV index in May: 7

The months with the highest UV index are January, February, March, November and December (UV index 12).
The months with the lowest UV index are June and July (UV index 6).