Climate and monthly weather forecastNukuhetulu, Tonga
Climate and monthly weather forecast
The climate of Nukuhetulu
Nukuhetulu, Tonga, possesses a distinct tropical rainforest climate (Af), as delineated by the Köppen climate classification. This unique climate provides consistent, tropical weather patterns and gorgeous natural vistas throughout the year. The humidity relative average in Nukuhetulu floats from 75% to 80%, which is relatively high, enhancing the tropical climate experience.Temperature patterns in Nukuhetulu don't show much variation, maintaining a consistent year-round warmth. The highest recorded temperature peaks at 27.5°C (81.5°F), with the lowest at 21.6°C (70.9°F). These figures suggest the island seldom experiences sudden temperature plunges or spikes, ensuring a steady tropical atmosphere.
Rainfall, though widespread across the year, shows considerable variation. The number of rainfall days ranges from 12.9 to 22.7 while accumulation of rainfall varies from 36mm (1.42") to 163mm (6.42") per month. This disparity suggests the occurrence of a noticeable dry season, with rain intensity lessening in certain periods.
Wind patterns seem reasonably consistent year-round, with the wind speed varying from 23.3km/h (14.5mph) to 25.6km/h (15.9mph). These figures indicate the presence of moderate, constant sea breezes that contribute to making the climate pleasant. Nukuhetulu’s visibility remains excellent throughout the year at an average 10km (6.2mi), while the cloud cover varies between 46% to 51%.
The best time to visit Nukuhetulu
For those seeking the warm embrace of tropical sun, October to December provide the highest levels of sunshine, with an average daily duration of 8.9 hours and 8.6 hours, respectively. In addition to this, the rainfall is at its lowest from September to November, with the rainfall amount falling between 36mm (1.42") and 39mm (1.54"). During this period, humidity levels decrease, extending a more hospitable climate for outdoor activities and beachside lounging.The worst time to visit Nukuhetulu
The months between February and April may not pose the best conditions for travel considering the high rainfall recorded during these months. Rainfall is at its peak in February with an impressive 163mm (6.42"), and the number of rainfall days is the highest during these months, reaching up to 22.7 days. Despite the high levels of sunshine hours during these months, the high rainfall and humidity might somewhat dampen outdoor plans.Spring weather in Nukuhetulu
Spring in Nukuhetulu brings about a slight change in climate, with a distinct drop in rainfall and an increase in daylight hours. From September to November, daylight hours vary from 12 hours to 13.1 hours. The levels of rainfall during these months drop significantly with averages ranging from 36mm (1.42") to 59mm (2.32").Summer weather in Nukuhetulu
Summer is a season of increased warmth and rainfall in Nukuhetulu. Between December and February, High temperatures hover between 26.2°C (79.2°F) and 27.5°C (81.5°F). As the season progresses, rainfall picks up, reaching its peak in February at 163mm (6.42").Autumn weather in Nukuhetulu
Autumn in Nukuhetulu, observed from March to May, manifests a marked change in weather. The rainfall offsets slightly but stays relatively high at around 151mm (5.94") in March to 86mm (3.39") in May. Daylight hours minimize, moving from 12.2 hours in March to 11.1 hours in May.Winter weather in Nukuhetulu
Winter weather in Nukuhetulu offers a welcome respite from the heightened temperatures and humidity of the summer months. Recorded temperatures fall from 24.3°C (75.7°F) to 23.2°C (73.8°F) between June and August. Rainfall also sees a significant dip, reaching its annual low with an average of 51mm (2.01") in August.Weather in January
The inaugural month of the year in Nukuhetulu, Tonga commences with modestly warm temperatures paired with noticeable humidity. This humidity contributes to cloudy conditions, imposing a visible veil over the sun for most of the day. Weather in January »Weather in February
Following on from January, February's climatic disposition in Nukuhetulu further intensifies the intensity of the tropical character. The weather persists its course with increased rainfall, clocking in at 163mm (6.42"). Although the daylight hours start to decline, the sunshine duration increases mildly, indicating clearer skies between downpours. Weather in February »Weather in March
As Nukuhetulu transitions into March, the overall weather conditions show minor fluctuations. Precipitation takes a slight decline from the previous month, paving the way for a brighter, yet still humid environment. With increased atmospheric pressure compared to the last two months, the town experiences consistently high visibility at 10km (6.2mi). Weather in March »Weather in April
April in Nukuhetulu signals the beginning of an atmospheric transition as the tropical season starts to withdraw. Showers take a remarkable downturn, marking an appreciable decline in precipitation to 86mm (3.39"), the first notable dip in rainfall this year. Weather in April »Weather in May
May continues the meteorological narrative set by April in Nukuhetulu, further dwindling the telltale signs of a deep-set tropical climate. Rainfall dwindles down to 59mm (2.32"), marking a record low for the year so far. The pleasant meteorological shift paves the way for sunnier skies, longer periods of daylight and lower relative humidity. Weather in May »Weather in June
June ushers in a distinctive shift as Nukuhetulu encounters a notably different meteorological landscape. While the temperatures verge towards their lowest of the year, higher atmospheric pressure prevails at 1015.8mb. The town delights in sustained periods of sunshine, coupled with lighter rainfall. Weather in June »Weather in July
Making its way into the heart of winter, July in Nukuhetulu presents comparatively cooler temperatures. With wind speeds maintaining a steady course, the overall atmosphere tilts towards a fresher climate. After a brief respite in June, rainfall gradually inches back up to 72mm (2.83"), while the rest of the weather elements demonstrate a steady rhythm. Weather in July »Weather in August
As the final quarter of the year commences, August presents mild reductions in temperature and rainfall. It's worth noting that the 1016.2mb atmospheric pressure brings a calm stability to Nukuhetulu's weather. The cool winds continue their leisurely dance, juggling between being playful to modestly strong. Weather in August »Weather in September
September in Nukuhetulu marks a departure from the cooler weather, paving the way for a warmer transition. Humidity gradually increases, steering the climate back towards a mildly tropical milieu. As the atmospheric pressure remains constant, the town registers consistent wind speed of 23.7km/h (14.7mph), offering a breezy complement to the rising temperatures. Weather in September »Weather in October
October in Nukuhetulu unveils the arrival of a more tropical climate. With daylight hours steadily increasing, the town witnesses higher temperatures and a more vivid sky. Maintaining its consistent performance throughout the year, visibility remains at 10km (6.2mi) despite the rising humidity. Weather in October »Weather in November
Ramping up towards the culmination of the year, November in Nukuhetulu manifests a definite uptick in temperatures. This warmth is underscored by the average 8.9 hours of daily sunshine, the highest for the year. The balance between longer sunshine hours and sporadic showers creates a vibrant, energetic atmosphere in the town. Weather in November »Weather in December
Rounding off the year with favorable conditions, December's weather in Nukuhetulu demonstrates a gradual increase in all climatic parameters. Rainfall surges to 75mm (2.95") while the winds blow steadfastly at an average speed of 24.9km/h (15.5mph), maintaining the tropical character associated with the town. Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Nukuhetulu, Tonga
The warmest month (with the highest average high temperature) is February (27.5°C).
The month with the lowest average high temperature is September (22.9°C).
The month with the highest average low temperature is February (26.7°C).
The coldest month (with the lowest average low temperature) is August (21.6°C).
Average pressure
Nukuhetulu, Tonga
- Average pressure in January:
1008.6mbar - Average pressure in February:
1008.6mbar - Average pressure in March:
1010.8mbar - Average pressure in April:
1012.6mbar - Average pressure in May:
1014.2mbar - Average pressure in June:
1015.8mbar
- Average pressure in July:
1015.9mbar - Average pressure in August:
1016.2mbar - Average pressure in September:
1016.2mbar - Average pressure in October:
1015.1mbar - Average pressure in November:
1012.9mbar - Average pressure in December:
1011mbar
The months with the highest atmospheric pressure are August and September (1016.2mbar).
The months with the lowest atmospheric pressure are January and February (1008.6mbar).
Average wind speed
Nukuhetulu, Tonga
- Average wind speed in January:
23.3km/h - Average wind speed in February:
24.1km/h - Average wind speed in March:
23.6km/h - Average wind speed in April:
24.2km/h - Average wind speed in May:
25.5km/h - Average wind speed in June:
25.4km/h
- Average wind speed in July:
25.6km/h - Average wind speed in August:
24.6km/h - Average wind speed in September:
23.7km/h - Average wind speed in October:
23.8km/h - Average wind speed in November:
24.1km/h - Average wind speed in December:
24.9km/h
The windiest month (with the highest average wind speed) is July (25.6km/h).
The calmest month (with the lowest average wind speed) is January (23.3km/h).
Average humidity
Nukuhetulu, Tonga
The month with the highest relative humidity is January (80%).
The months with the lowest relative humidity are July and August (75%).
Average rainfall
Nukuhetulu, Tonga
- Average rainfall in January:
124mm - Average rainfall in February:
163mm - Average rainfall in March:
151mm - Average rainfall in April:
86mm - Average rainfall in May:
59mm - Average rainfall in June:
71mm
The wettest month (with the highest rainfall) is February (163mm).
The driest month (with the least rainfall) is October (36mm).
Average rainfall days
Nukuhetulu, Tonga
- Average rainfall days in January:
22.3 days - Average rainfall days in February:
22.7 days - Average rainfall days in March:
21.5 days - Average rainfall days in April:
14.7 days - Average rainfall days in May:
13 days - Average rainfall days in June:
13.3 days
- Average rainfall days in July:
15.3 days - Average rainfall days in August:
14.6 days - Average rainfall days in September:
14 days - Average rainfall days in October:
12.9 days - Average rainfall days in November:
13.1 days - Average rainfall days in December:
16.5 days
The month with the highest number of rainy days is February (22.7 days).
The month with the least rainy days is October (12.9 days).
Average daylight / Average sunshine
Nukuhetulu, Tonga
- Average daylight in January:
13h and 12min - Average daylight in February:
12h and 48min - Average daylight in March:
12h and 12min - Average daylight in April:
11h and 36min - Average daylight in May:
11h and 6min - Average daylight in June:
10h and 54min
- Average daylight in July:
11h and 0min - Average daylight in August:
11h and 24min - Average daylight in September:
12h and 0min - Average daylight in October:
12h and 36min - Average daylight in November:
13h and 6min - Average daylight in December:
13h and 24min
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 January:
7h and 0min - Average sunshine in February:
7h and 30min - Average sunshine in March:
7h and 24min - Average sunshine in April:
7h and 18min - Average sunshine in May:
7h and 24min - Average sunshine in June:
7h and 6min
- Average sunshine in July:
7h and 0min - Average sunshine in August:
6h and 48min - Average sunshine in September:
7h and 0min - Average sunshine in October:
7h and 6min - Average sunshine in November:
8h and 54min - Average sunshine in December:
8h and 36min
The month with the most sunshine is November (Average sunshine: 8h and 54min).
The month with the least sunshine is August (Average sunshine: 6h and 48min).
Average sunshine days
Nukuhetulu, Tonga
- Average sunshine days in January:
4.8 days - Average sunshine days in February:
3.8 days - Average sunshine days in March:
5.9 days - Average sunshine days in April:
13.2 days - Average sunshine days in May:
15.1 days - Average sunshine days in June:
11.6 days
- Average sunshine days in July:
10.6 days - Average sunshine days in August:
10.1 days - Average sunshine days in September:
10.8 days - Average sunshine days in October:
13 days - Average sunshine days in November:
10.9 days - Average sunshine days in December:
9.5 days
The month with the most sunshine days is May (15.1 days).
The month with the least sunshine days is February (3.8 days).
Average UV index
Nukuhetulu, Tonga
The months with the highest UV index are January, February and March (UV index 7).
The months with the lowest UV index are April, May, June, July, August, September, October, November and December (UV index 6).
Average cloud cover
Nukuhetulu, Tonga
The month with the most cloud cover is August (Cloud cover 51).
The month with the least cloud cover is May (Cloud cover 46).
Average visibility
Nukuhetulu, Tonga
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





