Climate and monthly weather forecastHoi, Tonga
Climate and monthly weather forecast
The climate of Hoi
Hoi, Tonga, boasts a predominant Tropical Rainforest climate according to the Köppen Climate Classification, which places it into the 'Af' category. Given this classification, the country's weather sees considerable humidity and rainfall year-round. The geographic position of the city, situated on the northeastern part of the Tonga archipelago in the South Pacific Ocean, plays a fundamental role in shaping its tropical weather patterns.A typical day in Hoi throughout the year features a pattern of high temperatures, with the readings fluctuating from 22.9°C (73.2°F) to 27.5°C (81.5°F). On the cooler side, the temperature experiences a shift between 21.6°C (70.9°F) to 26.7°C (80.1°F), ensuring relatively warm weather, irrespective of the month. Rainfall, although present throughout the year, witnesses an increased volume during the first few months of the year, peaking at 163mm (6.42") in February. The number of rainfall days varies marginally, with an upper limit of 22.7 days in February to a lower record of 12.9 days in November.
Humidity levels remain consistently high at 75% to 80% throughout the year. The average cloud coverage ranges from 46% to 51%, indicating relatively cloudy skies. A noteworthy aspect of Hoi's climate is the minimal fluctuation in daylight hours across the year. The city enjoys a yearly range between a peak of 13.4 hours in December and a minimum of 10.9 hours in June.
The Best Time to Visit Hoi
The optimal timing for a visit to Hoi would be during the latter half of the year, particularly between the months of May to October. During this period, the city experiences less rainfall ranging from 36mm (1.42") to 72mm (2.83") compared to the beginning of the year. A drop in rainfall equates to fewer rainfall days, between 13 to 15.3 days a month. Clear skies could also be expected with less cloud coverage, falling to as low as 46% in May and October.The Worst Time to Visit Hoi
Visitors might discover the initial months of the year between January to March less than ideal for a visit. This period sees the highest rainfall, escalating to a high of 163mm (6.42") in February. Correspondingly, the number of rainfall days tends to be more, reaching a peak of 22.7 days, also in February. This weather trend is paired with the highest humidity levels, reaching up to 80% in January.Spring Weather in Hoi
In Hoi, spring unfolds between September to November. The temperatures in these months stay comfortably between a high of 23.7°C (74.7°F) to 25.2°C (77.4°F) and a low of 21.7°C (71.1°F) to 23.9°C (75°F). Rainfall during the spring months varies from 36mm (1.42") to 64mm (2.52"), with the number of rain days oscillating around 13 to 14.6 days.Summer Weather in Hoi
Spanning December to February, summer in Hoi has high temperatures ranging from 25.6°C (78.1°F) to 27.5°C (81.5°F) and lows swinging from 24.9°C (76.8°F) to 26.7°C (80.1°F). Rainfall in these months is comparatively higher, with the volume fluctuating from 75mm (2.95") to 163mm (6.42").Autumn Weather in Hoi
In Hoi, the autumn months commence in March and last through May. Temperatures remain pleasant, with highs straying between 25.2°C (77.4°F) to 27.2°C (81°F) and lows shifting between 21.9°C (71.4°F) to 26.3°C (79.3°F). The rainfall in these months lies approximately between 59mm (2.32") to 151mm (5.94").Winter Weather in Hoi
The winter months are observed from June to August in Hoi. During this season, temperatures rotate from a high of 22.9°C (73.2°F) to 24.3°C (75.7°F) to a low between 21.6°C (70.9°F) and 23°C (73.4°F). Rainfall is typically lower in this period, with an average range of 51mm (2.01") to 72mm (2.83"). The winter months, being in the latter part of the year, are part of the most suitable period for visiting Hoi.Weather in January
The start of the year brings warm temperatures and high humidity to Hoi, Tonga. January is recognized for its high precipitation with an average monthly rainfall of 124mm (4.88") over 22.3 days. Frequent showers can be expected with overcast skies and stiff winds. Weather in January »Weather in February
Weather conditions in Hoi, Tonga undergo minimal changes between January and February. Likely, the weather remains warm and humid with an increase in average monthly rainfall to 163mm (6.42"). The month is marked by high wind speeds, reaching an average of 24.1km/h (15mph). Weather in February »Weather in March
March sees a slight decrease in rainfall, but conditions remain largely consistent with the preceding month. The weather in Hoi, Tonga stays warm, with high temperatures and high humidity prevailing throughout most of the month. By this time, wind speeds have decreased marginally, offering a slight relief. Weather in March »Weather in April
April marks a distinct shift in the weather conditions in Hoi, Tonga, with a decrease in rainfall from 151mm (5.94") to 86mm (3.39"). This reduction in rainfall indicates the beginning of a drier period. Cloudy days continue to persist, but the reduction in rainfall suggests more sunny intervals. Weather in April »Weather in May
May brings continued drier and less humid conditions to Hoi, Tonga. Similar to the gradual decline in rainfall seen in April, May sees a further decrease in precipitation. The break in rainfall is joined by a continued drop in humidity, offering somewhat more comfortable conditions. Weather in May »Weather in June
June maintains the trend of drier conditions seen in Hoi, Tonga from April. Decreased rainfall and sustained warm temperatures characterize this month, with the temperature hitting a low of 21.9°C (71.4°F). Breezes continue to flow with substantial strength while the amount of daylight begins to modestly increase. Weather in June »Weather in July
July sees consistent weather patterns as experienced in June in Hoi, Tonga. This midway point in the year is marked by steady climatic conditions. The amount of rainfall remains minimal compared to the start of the year, suggesting the persistence of drier days. Weather in July »Weather in August
The weather in August in Hoi, Tonga remains similar to the preceding two months. By this point, the region is deep into a drier spell, with rainfall being reduced and temperatures becoming more bearable. Wind speeds of 24.6km/h (15.3mph) average for this month makes August a windy month, as compared to the other months. Weather in August »Weather in September
As the end of the year approaches, the weather in Hoi, Tonga in September sees subtle changes. There is a slight increase in rainfall, yet it stays significantly lower than at the start of the year. Consistent temperatures and humidity mark the transition from the drier months into the final quarter of the year. Weather in September »Weather in October
In October, change starts to approach the weather in Hoi, Tonga. The earlier signs of transitioning weather become more evident, with rainfall beginning to rise. However, temperatures and wind speeds remain mostly steady, indicating a continuation of warm and breezy conditions. Weather in October »Weather in November
November marks the beginning of the rainy season in Hoi, Tonga. In keeping with this trend, this month sees its highest average sunlight hours of 8.9 hours daily. The consistent increase in rainfall is a definite indicator of the wet season's arrival. Weather in November »Weather in December
The year reaches its end with characteristics of both the dry and wet seasons in Hoi, Tonga. December carries on the trend of increasing rainfall, ending the year with an average of 75mm (2.95") of rain. Even though the rain is more substantial, the amount of sunshine remains high. Weather in December »Updated: Feb 5, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January is the most humid month, with an average relative humidity of 80%.
In Hoi, during the entire year, the rain falls for 193.9 days and collects up to 991mm (39.02") of precipitation.
The months with the highest UV index are January through March, with an average maximum UV index of 7.
February is Hoi's warmest month, registering average high temperatures of 27.5°C (81.5°F) and lows of 26.7°C (80.1°F).
The month with the most rainfall in Hoi is February, when the rain falls for 22.7 days and typically aggregates up to 163mm (6.42") of precipitation.
April through December, with an average maximum UV index of 6, are months with the lowest UV index in Hoi.
June has the shortest days of the year in Hoi, Tonga, with an average of 10h and 54min of daylight.
July and August, with an average relative humidity of 75%, are the least humid months in Hoi, Tonga.
With an average of 6.8h of sunshine, August has the least sunshine of the year in Hoi.
The coldest time of the year is September, with temperatures averaging a high of 22.9°C (73.2°F) and a low of 21.7°C (71.1°F).
October is the month with the least rainfall in Hoi. Rain falls for 12.9 days and accumulates 36mm (1.42") of precipitation.
With an average of 8.9h of sunshine, November has the most sunshine of the year in Hoi.
With an average of 13h and 24min of daylight, December has the longest days of the year.
Hoi does not utilize Daylight Saving Time (DST). +13 timezone is used over the entire year.
Average temperature
Hoi, 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
Hoi, 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
Hoi, 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
Hoi, 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
Hoi, 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
Hoi, 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
Hoi, 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
Hoi, 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
Hoi, 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
Hoi, 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
Hoi, 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).
