Climate and monthly weather forecastGahi, Wallis and Futuna
Climate and monthly weather forecast
The climate of Gahi
In terms of the Köppen climate classification system, Gahi falls predominantly under the Equatorial Rainforest climate. This South Pacific island, positioned in the Wallis and Futuna archipelago, sets a typical example of a region where there is a significant amount of rainfall throughout the year.A striking feature of Gahi's weather profile is the abundance and consistency of rain across the year. Monthly rainfall varies from a low of 67mm (2.64") to a high of 405mm (15.94"). Annual precipitation patterns show minimal fluctuations, with a slight decrease from 320mm (12.6") in January to 267mm (10.51") in December. However, it's noticeable that the number of rainfall days is relatively stable, fluctuating from 19.1 days in July to 28.2 days in December.
Temperatures in Gahi display minimal variations, with monthly highs ranging from 27.7°C (81.9°F) to 29.1°C (84.4°F) and monthly lows fluctuating between 26.8°C (80.2°F) and 28.2°C (82.8°F). These values indicate a generally warm climate, and changes in temperature are not drastic throughout the year. However, relative humidity maintains a high level - between 75% and 78% - reflecting the moist, tropical climate.
Wind speeds display a mild fluctuation that juxtaposes the quieter months versus windier ones, with averages ranging from 17.2km/h (10.7mph) to 27.2km/h (16.9mph). Peak gusts reach up to 37.6km/h (23.4mph).
The best time to visit Gahi
While Gahi offers pleasant weather throughout the year - temperatures remain balmy and reasonably steady - the months with the lowest rainfall make for the most enjoyable visits. May to October present the driest months - rainfall drops to 115mm (4.53") in May and carries through until October with 138mm (5.43"). During this period, the number of rainfall days also decreases, making these months more suitable for outdoor activities. The daily sunshine hours increase slightly during these months as well, and wind speeds are at their highest, providing refreshing breezes.The worst time to visit Gahi
Based purely on weather conditions, the wettest period of the year might present less ideal conditions for visiting Gahi. The months of February see the highest rainfall reaching 405mm (15.94"), followed by January with 320mm (12.6") and December with 267mm (10.51"). The number of rainfall days in these months are also the highest, which could restrict outdoor activities.Spring weather in Gahi
Considering the Equatorial climate, Gahi does not mark distinctive seasonal changes like temperate climates do. However, for the purposes of classification, the period from March to May can be considered 'spring.' During these months, the average high temperature remains steady around 29°C (84.2°F), and the low averages about 27.9°C (82.2°F) in March, declining slightly to 27.5°C (81.5°F) in May. Rainfall during this period starts at 188mm (7.4") in March, fading to a low of 115mm (4.53") in May.Summer weather in Gahi
In the 'summer' months from June to August, Gahi experiences marginally lower temperatures with highs between 27.7°C (81.9°F) to 28.5°C (83.3°F) and lows from 26.8°C (80.2°F) to 27°C (80.6°F). There is a minor reduction in rainfall during this period, with the lowest monthly amount recorded at 67mm (2.64") in August. Wind speeds are at their year's peak, reaching up to 27.2km/h (16.9mph) in July.Autumn weather in Gahi
'Spring' in Gahi, spanning from September to November, presents steady temperatures - hitting highs of around 28.1°C (82.6°F) to 28.4°C (83.1°F) and lows between 26.9°C (80.4°F) to 27.6°C (81.7°F). Rainfall begins to increase in this period - September sees 82mm (3.23"), which climbs to 170mm (6.69") by November.Winter weather in Gahi
The 'winter' months, i.e., from December to February, are the wettest period in Gahi with December bringing 267mm (10.51"), climbing to 405mm (15.94") in February. Nonetheless, temperatures remain stable - highs of around 28.8°C (83.8°F) to 29.1°C (84.4°F) and lows of 27.9°C (82.2°F) to 28.2°C (82.8°F). It's important to note that wind speeds start to decrease during this period - from 19.4km/h (12.1mph) in December to 17.2km/h (10.7mph) in March.Weather in January
In Gahi, Wallis and Futuna, January's weather marks the start of the year with high humidity levels and frequent rain. Temperatures remain relatively constant, with minor variations from daytime peaks to nighttime lows. Notably, the heaviest rainfall of the year occurs this month reaching up to 320mm (12.6"). Weather in January »Weather in February
February's weather in Gahi shows a slight increase in temperature and wind speed from January. It is the second consecutive month of abundant rainfall, essentially continuing the trend initiated by the preceding month. The increase in rainfall, up to 405mm (15.94"), coincides with the peak of the cyclonic season. Weather in February »Weather in March
The weather for March in Gahi, Wallis and Futuna exhibits a slight deceleration in weather intensity compared to February. This represents a modest respite from the heavy rainfalls of the preceding months with just 188mm (7.4") of rainfall recorded. Weather in March »Weather in April
In April, Gahi experiences significant changes in its climate. This month ushers in a lesser amount of rainfall, dropping to 150mm (5.91"), indicating the onset of a somewhat drier season. It results in fewer rainy days compared to the preceding months. Weather in April »Weather in May
May's weather in Gahi shows continued signs of the drying trend initiated in April. Most notably, rainfall decreases even further to reach only 115mm (4.53"). The drying trend, however, does not impact the overall temperatures significantly; they remain steady in the high 20s. Weather in May »Weather in June
June marks the arrival of winter in Gahi, Wallis and Futuna. Despite this, temperatures remain fairly stable but humidity levels increase marginally. A notable feature of June's climate is the diminished sunshine hours, dipping to 5.7 hours a day, coupled with increased cloudiness. Weather in June »Weather in July
As in most tropical climates, July in Gahi is considered a winter month. Temperatures continue to decline marginally, hitting the annual low at 27°C (80.6°F). Coupled with elevated wind speeds, attaining their annual peak at 27.2km/h (16.9mph), a slight chill can be felt in the air. Weather in July »Weather in August
August's weather in Gahi, Wallis and Futuna is characterised by slightly elevated humidity levels and more rain-free days. Increased wind speeds continue to play a significant role in the overall climate, maintaining a consistent average around 26.3km/h (16.3mph). Weather in August »Weather in September
In September, Gahi experiences a welcomed resurgence of the dry season. Rainfall registers a subtle increase to 82mm (3.23") but remains relatively low compared to earlier months. Likewise, the slight rise in daily sunshine hours contributes to a warmer overall climate. Weather in September »Weather in October
October's weather in Gahi sees a fluctuation that leans towards wetter conditions. Rainfall registers a significant increase, rising to 138mm (5.43"), along with a slight uptick in cloud coverage. Despite the surge in rainfall, the temperatures stay reasonably stable, continuing the trend from September. Weather in October »Weather in November
In November, the climate in Gahi, Wallis and Futuna experiences a substantial shift. It is marked by an even higher increase in rainfall, soaring up to 170mm (6.69"). This surge in rainfall is indicative of the impending cyclone season. Weather in November »Weather in December
December's weather marks the end of the year in Gahi, bringing with it a mix of weather patterns. The month ties with January for the second-highest rainfall totals of the year at 267mm (10.51"), a clear indication of the cyclone season reaching its peak. Weather in December »Updated: Jun 4, 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
Throughout the year, there are 285.2 rainfall days, and 2066mm (81.34") of precipitation is accumulated.
The month with the most sunshine is January, with an average of 9.3h of sunshine.
January through December, with an average maximum UV index of 7, are months with the highest UV index.
The months with the lowest UV index are January through December, with an average maximum UV index of 7.
The height of temperatures is seen during February and March, averaging a high-temperature of 29.1°C (84.4°F).
The month with the most rainfall is February, when the rain falls for 25.3 days and typically aggregates up to 405mm (15.94") of precipitation.
March is the least humid month in Gahi, with an average relative humidity of 75%.
June through September, with an average relative humidity of 78%, are most humid months.
The month with the shortest days is June, with an average of 11h and 24min of daylight.
June and July, with an average of 5.7h of sunshine, are months with the least sunshine.
Gahi's coldest season falls during July through September, averaging a high-temperature of 27.7°C (81.9°F).
August is the month with the least rainfall in Gahi. Rain falls for 20.8 days and accumulates 67mm (2.64") of precipitation.
December has the longest days of the year, with an average of 12h and 54min of daylight.
Gahi does not utilize Daylight Saving Time (DST). +12 timezone is used throughout the entire year.
Average temperature
Gahi, Wallis and Futuna
The warmest months (with the highest average high temperature) are February and March (29.1°C).
The months with the lowest average high temperature are July, August and September (27.7°C).
The month with the highest average low temperature is March (28.2°C).
The coldest month (with the lowest average low temperature) is August (26.8°C).
Average pressure
Gahi, Wallis and Futuna
- Average pressure in January:
1007.1mbar - Average pressure in February:
1007.4mbar - Average pressure in March:
1008.9mbar - Average pressure in April:
1010mbar - Average pressure in May:
1010.7mbar - Average pressure in June:
1011.3mbar
- Average pressure in July:
1011.4mbar - Average pressure in August:
1011.8mbar - Average pressure in September:
1011.9mbar - Average pressure in October:
1011mbar - Average pressure in November:
1009.4mbar - Average pressure in December:
1008mbar
The month with the highest atmospheric pressure is September (1011.9mbar).
The month with the lowest atmospheric pressure is January (1007.1mbar).
Average wind speed
Gahi, Wallis and Futuna
- Average wind speed in January:
19km/h - Average wind speed in February:
20.8km/h - Average wind speed in March:
17.2km/h - Average wind speed in April:
17.8km/h - Average wind speed in May:
21km/h - Average wind speed in June:
26.2km/h
- Average wind speed in July:
27.2km/h - Average wind speed in August:
26.3km/h - Average wind speed in September:
25.4km/h - Average wind speed in October:
22km/h - Average wind speed in November:
19.8km/h - Average wind speed in December:
19.4km/h
The windiest month (with the highest average wind speed) is July (27.2km/h).
The calmest month (with the lowest average wind speed) is March (17.2km/h).
Average humidity
Gahi, Wallis and Futuna
The months with the highest relative humidity are June, July, August and September (78%).
The month with the lowest relative humidity is March (75%).
Average rainfall
Gahi, Wallis and Futuna
- Average rainfall in January:
320mm - Average rainfall in February:
405mm - Average rainfall in March:
188mm - Average rainfall in April:
150mm - Average rainfall in May:
115mm - Average rainfall in June:
87mm
The wettest month (with the highest rainfall) is February (405mm).
The driest month (with the least rainfall) is August (67mm).
Average rainfall days
Gahi, Wallis and Futuna
- Average rainfall days in January:
26.8 days - Average rainfall days in February:
25.3 days - Average rainfall days in March:
27.7 days - Average rainfall days in April:
25.2 days - Average rainfall days in May:
22.2 days - Average rainfall days in June:
19.6 days
- Average rainfall days in July:
19.1 days - Average rainfall days in August:
20.8 days - Average rainfall days in September:
20.8 days - Average rainfall days in October:
23.2 days - Average rainfall days in November:
26.3 days - Average rainfall days in December:
28.2 days
The month with the highest number of rainy days is December (28.2 days).
The month with the least rainy days is July (19.1 days).
Average daylight / Average sunshine
Gahi, Wallis and Futuna
- Average daylight in January:
12h and 48min - Average daylight in February:
12h and 30min - Average daylight in March:
12h and 12min - Average daylight in April:
11h and 48min - Average daylight in May:
11h and 30min - Average daylight in June:
11h and 24min
- Average daylight in July:
11h and 24min - Average daylight in August:
11h and 42min - Average daylight in September:
12h and 0min - Average daylight in October:
12h and 24min - Average daylight in November:
12h and 42min - Average daylight in December:
12h and 54min
The month with the longest days is December (Average daylight: 12h and 54min).
The month with the shortest days is June (Average daylight: 11h and 24min).
- Average sunshine in January:
9h and 18min - Average sunshine in February:
9h and 12min - Average sunshine in March:
8h and 42min - Average sunshine in April:
7h and 54min - Average sunshine in May:
7h and 48min - Average sunshine in June:
5h and 42min
- Average sunshine in July:
5h and 42min - Average sunshine in August:
6h and 30min - Average sunshine in September:
7h and 36min - Average sunshine in October:
7h and 42min - Average sunshine in November:
7h and 36min - Average sunshine in December:
9h and 6min
The month with the most sunshine is January (Average sunshine: 9h and 18min).
The months with the least sunshine are June and July (Average sunshine: 5h and 42min).
Average sunshine days
Gahi, Wallis and Futuna
- Average sunshine days in January:
2.3 days - Average sunshine days in February:
1.8 days - Average sunshine days in March:
2.1 days - Average sunshine days in April:
3.3 days - Average sunshine days in May:
6.2 days - Average sunshine days in June:
8 days
- Average sunshine days in July:
9.3 days - Average sunshine days in August:
7.9 days - Average sunshine days in September:
6.8 days - Average sunshine days in October:
5.2 days - Average sunshine days in November:
2.3 days - Average sunshine days in December:
1.5 days
The month with the most sunshine days is July (9.3 days).
The month with the least sunshine days is December (1.5 days).
Average UV index
Gahi, Wallis and Futuna
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
Gahi, Wallis and Futuna
The month with the most cloud cover is August (Cloud cover 49).
The months with the least cloud cover are March, April and May (Cloud cover 44).
Average visibility
Gahi, Wallis and Futuna
The months with the highest visibility are March, April, May, June, July, August, September, October and November (10km).
The months with the lowest visibility are January, February and December (9km).
