Climate and monthly weather forecastTauhunu, Cook Islands
Climate and monthly weather forecast
The climate of Tauhunu
The island of Tauhunu in the Cook Islands experiences a tropical rainforest climate, according to the Köppen climate classification. This grouping of weather styles infers sweltering temperatures all year round along with ample precipitation.Astonishingly, the temperature in Tauhunu does not vary broadly over the year. The peak averages at about 29.1 C can be felt in April while the minimum average temperature, which is about 26.8 C, is observed in August. The island also maintains a high relative humidity throughout the year just about 76%.
Precipitation shows some variability throughout the year but remains considerable and frequent in Tauhunu. Rainfall quantities fluctuate from substantial 266mm (10.47") in January to a fairly substantial 63mm (2.48") in September. The corresponding days with rainfall change between 28.7 days in March to 18.6 days in July.
When it comes to sunlight, Tauhunu reasonably benefits from about 12.6 hours of daylight in November to about 11.5 hours in June. The sun usually shines for approximately 7 to 8.3 hours daily. Tauhunu experiences an ultraviolet index of 7 throughout the year.
The best time to visit Tauhunu
Planning a holiday to Tauhunu, weatherwise, hangs chiefly on the visitor's weather preferences. For those who appreciate warmer temperatures, April offers the highest average temperature at around 29.1°C (84.4°F).For beach lovers, the sea temperature is quite favorable throughout the year; maintaining around 29°C (84.2°F) from January to June and again from October to December, with slight dips to 28°C (82.4°F) in the remaining months.
For those who seek more sunlight hours and less rainy days, the month of July would be an ideal time. With 9.1 sunshine days and only 18.6 rainy days, it crystallizes the best weather conditions in Tauhunu.
The worst time to visit Tauhunu
Considering potential travelers who look forward to spending their vacation with less rainfall, January would be less appealing due to it being the wettest month with an average of 266mm (10.47") of precipitation over about 25.4 days.Spring weather in Tauhunu
Spring in Tauhunu, rolling from September to November, is quite consistent temperature-wise. Temperatures hover around an average high of 28°C (82.4°F) and a low of 27.1°C (80.8°F) with the sea temperature holding steady at 28°C (82.4°F) in September before rising to 29°C (84.2°F) in November. Meanwhile, rainfall declines significantly from 63mm (2.48") in September to 115mm (4.53") in November, thereby increasing the number of rainy days.Summer weather in Tauhunu
Beginning in December and transitioning through February, the summer period in Tauhunu showcases temperately hot temperatures ranging from a high of 28.6°C (83.5°F) and a low of 27.5°C (81.5°F). Rainfall can be heavy during these months with an average of 266mm (10.47") in December and 218mm (8.58") in February. The sea temperature remains steady at 29°C (84.2°F) offering excellent conditions for water-related activities.Autumn weather in Tauhunu
Temperatures in autumn, which extends from March to May, can get relatively high, with an average tally between 29.1°C (84.4°F) to 28.7°C (83.7°F). Rainfall reduces sequentially from March's peak of 166mm (6.54") to a rather drier 118mm (4.65") in May. In the same vein, the same number of rainy days also trim down from 28.7 days to 25.1 days.Winter weather in Tauhunu
Winter in Tauhunu is featured by a pleasant blend of warm temperatures and diminished rainfall. The temperature peaks at 28°C (82.4°F) with a dip to 26.8°C (80.2°F) in August, the coolest month. Rainfall exhibits a substantial decline from 96mm (3.78") in June to a year's low of 63mm (2.48") in September. Correspondingly, the days with rainfall are also relatively less, ranging from 21.3 days in June to the year's minimum of 18.6 days in July.Weather in January
In Tauhunu, Cook Islands, January ushers in the year with warm sea temperatures and moderate rainfall. Constant trades from the East, clocking at 20.8km/h (12.9mph), create a characteristic wind pattern common during this time of year. Weather in January »Weather in February
While January marks the peak rainfall, February offers a slight reduction, contributing to a pattern of decreasing rainfall from here onwards. The consistent sea temperature created by the surrounding Pacific Ocean gives Tauhunu its characteristic climate. Weather in February »Weather in March
Tauhunu continues the trend of decreasing rainfall into March, steering the climatic pattern towards drier conditions. Accompanied by the now consistent sea temperatures, residents witness the slow transition into a period of reduced precipitation. Weather in March »Weather in April
The climate in Tauhunu takes on a distinct profile in April, noticeably dryer with a further decrease in rainfall to 121mm (4.76"). Coinciding with the decrease in rain, there's also a decline in cloud cover compared to the previous months. Weather in April »Weather in May
May marks another phase of the year in Tauhunu, where rainfall drops to 118mm (4.65"), displaying a continued drying trend. Concurrent with decreased rainfall, less cloud cover and thereby more sunshine become defining features of May. Weather in May »Weather in June
Moving on to June, one observes a continuation of the drying pattern in Tauhunu. There's ample sunlight during the day, which perfectly complements the slightly lowered humidity compared to the earlier months. Winds pick up speed reaching 22.5km/h (14mph), making this the windiest period so far. Weather in June »Weather in July
July, typically, is the windiest month in Tauhunu, observing an average speed of 25.5km/h (15.8mph). These winds render an overall cooling effect, balancing the inherent tropical warmth of the region. Alongside the winds, July sees further lowering rain levels and thus less cloud cover. Weather in July »Weather in August
August in Tauhunu meets expectations of a tropical city, by displaying less rainfall and elevated wind speeds. Matching the trend since the start of the year, rainfall continues its decline, further hinting towards the drier part of the year. Weather in August »Weather in September
September carries on the rhythms of the previous months - warm sea temperatures, less rainfall, and persistent winds. A further drop in rainfall to 63mm (2.48") highlights the prevailing dryness in Tauhunu. Correspondingly, the month enjoys an equal number of sunshine hours as August, ensuring that the city remain lit for most of the day. Weather in September »Weather in October
October indicates a change in Tauhunu weather, with a noticeable uptick in rainfall to 122mm (4.8"). Despite this, the city enjoys a significant number of sunshine hours, and constant sea temperatures are retained. Wind speeds come down slightly from the preceding months, yet are sufficient to keep the weather pleasant. Weather in October »Weather in November
By November, Tauhunu still maintains a warm climate, owing to a consistent sea temperature. Rainfall registers a slight drop compared to October but remains relatively high. Winds decrease further, resulting in calmer days compared to the past few months. Weather in November »Weather in December
Rounding out the year, December brings back some of Tauhunu's classic elements, with warmer conditions and appreciable rainfall at 141mm (5.55"). Winds moderately pick up to 19.3km/h (12mph), adding a refreshing contrast to the tropical air. Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Tauhunu, Cook Islands
The warmest month (with the highest average high temperature) is April (29.1°C).
The month with the lowest average high temperature is September (27.8°C).
The month with the highest average low temperature is April (28.1°C).
The coldest month (with the lowest average low temperature) is August (26.8°C).
Average pressure
Tauhunu, Cook Islands
- Average pressure in January:
1008.6mbar - Average pressure in February:
1008.8mbar - Average pressure in March:
1009.6mbar - Average pressure in April:
1010.2mbar - Average pressure in May:
1010.7mbar - Average pressure in June:
1010.8mbar
- Average pressure in July:
1011mbar - Average pressure in August:
1011.5mbar - Average pressure in September:
1011.5mbar - Average pressure in October:
1010.9mbar - Average pressure in November:
1009.7mbar - Average pressure in December:
1008.8mbar
The months with the highest atmospheric pressure are August and September (1011.5mbar).
The month with the lowest atmospheric pressure is January (1008.6mbar).
Average wind speed
Tauhunu, Cook Islands
- Average wind speed in January:
20.8km/h - Average wind speed in February:
22km/h - Average wind speed in March:
18.9km/h - Average wind speed in April:
18.1km/h - Average wind speed in May:
19.9km/h - Average wind speed in June:
22.5km/h
- Average wind speed in July:
25.5km/h - Average wind speed in August:
25.4km/h - Average wind speed in September:
25.2km/h - Average wind speed in October:
19.5km/h - Average wind speed in November:
17.9km/h - Average wind speed in December:
19.3km/h
The windiest month (with the highest average wind speed) is July (25.5km/h).
The calmest month (with the lowest average wind speed) is November (17.9km/h).
Average humidity
Tauhunu, Cook Islands
The months with the highest relative humidity are February, March, April, May, June, July, August, September and October (76%).
The month with the lowest relative humidity is December (74%).
Average rainfall
Tauhunu, Cook Islands
- Average rainfall in January:
266mm - Average rainfall in February:
218mm - Average rainfall in March:
166mm - Average rainfall in April:
121mm - Average rainfall in May:
118mm - Average rainfall in June:
103mm
The wettest month (with the highest rainfall) is January (266mm).
The driest month (with the least rainfall) is September (63mm).
Average rainfall days
Tauhunu, Cook Islands
- Average rainfall days in January:
25.4 days - Average rainfall days in February:
25.2 days - Average rainfall days in March:
28.7 days - Average rainfall days in April:
25.7 days - Average rainfall days in May:
25.1 days - Average rainfall days in June:
21.3 days
- Average rainfall days in July:
18.6 days - Average rainfall days in August:
19.8 days - Average rainfall days in September:
20.8 days - Average rainfall days in October:
22.5 days - Average rainfall days in November:
23 days - Average rainfall days in December:
24 days
The month with the highest number of rainy days is March (28.7 days).
The month with the least rainy days is July (18.6 days).
Average sea temperature
Tauhunu, Cook Islands
The best months for swimming (with the highest average sea temperature) are January, February, March, April, May, June, October, November and December (29°C).
The coldest months (with the lowest average sea temperature) are July, August and September (28°C).
Average daylight / Average sunshine
Tauhunu, Cook Islands
- Average daylight in January:
12h and 42min - Average daylight in February:
12h and 24min - Average daylight in March:
12h and 12min - Average daylight in April:
11h and 54min - Average daylight in May:
11h and 36min - Average daylight in June:
11h and 30min
- Average daylight in July:
11h and 36min - Average daylight in August:
11h and 48min - Average daylight in September:
12h and 6min - Average daylight in October:
12h and 18min - Average daylight in November:
12h and 36min - Average daylight in December:
12h and 42min
The month with the longest days is December (Average daylight: 12h and 42min).
The month with the shortest days is June (Average daylight: 11h and 30min).
- Average sunshine in January:
7h and 30min - Average sunshine in February:
7h and 36min - Average sunshine in March:
7h and 54min - Average sunshine in April:
8h and 6min - Average sunshine in May:
8h and 18min - Average sunshine in June:
8h and 12min
- Average sunshine in July:
8h and 6min - Average sunshine in August:
8h and 0min - Average sunshine in September:
8h and 18min - Average sunshine in October:
8h and 18min - Average sunshine in November:
8h and 6min - Average sunshine in December:
8h and 0min
The months with the most sunshine are May, September and October (Average sunshine: 8h and 18min).
The month with the least sunshine is January (Average sunshine: 7h and 30min).
Average sunshine days
Tauhunu, Cook Islands
- Average sunshine days in January:
3.8 days - Average sunshine days in February:
2.4 days - Average sunshine days in March:
1.3 days - Average sunshine days in April:
2.3 days - Average sunshine days in May:
3.8 days - Average sunshine days in June:
5.4 days
- Average sunshine days in July:
9.1 days - Average sunshine days in August:
7.9 days - Average sunshine days in September:
5.7 days - Average sunshine days in October:
6.9 days - Average sunshine days in November:
5.7 days - Average sunshine days in December:
5.1 days
The month with the most sunshine days is July (9.1 days).
The month with the least sunshine days is March (1.3 days).
Average UV index
Tauhunu, Cook Islands
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover
Tauhunu, Cook Islands
The months with the most cloud cover are January and February (Cloud cover 47).
The month with the least cloud cover is October (Cloud cover 41).
Average visibility
Tauhunu, Cook Islands
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).





