January weather forecastApia, Samoa

January
Weather in January
As in most tropical regions, January in Apia, Samoa brings about consistently warm temperatures. January stands out with the highest recorded monthly rainfall in the year at 175mm (6.89"), potentially affecting travel plans and outdoor events. Comparatively, this month experiences more rainfall than its succeeding month, February. Sunlight hours stand at a generous 12.8 hours a day, while the sea temperature is delightful, making it an ideal time for water activities. Despite the rain, life goes on as usual with splendid displays of sunshine becoming a part of everyday life.Temperature
In January, the average high-temperature registers at a still moderately hot 28.5°C (83.3°F), nearly identical to December's 28.3°C (82.9°F). Apia registers a small shift from peak daytime temperatures, with a consistent average low-temperature of 27.6°C (81.7°F) during January.Heat index
During January, the heat index is computed to be a tropical 33°C (91.4°F). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
Humidity
In January, the average relative humidity is 76%.Rainfall
The month with the most rainfall is January, when the rain falls for 19.9 days and typically aggregates up to 175mm (6.89") of precipitation.Sea temperature
In January, the average sea temperature is 29.3°C (84.7°F).Note: For engaging in water activities including swimming and diving, temperatures from 25°C (77°F) to 29°C (84.2°F) are perceived as perfect, providing pleasure for extended durations.
Daylight
The average length of the day in January is 12h and 50min.On the first day of the month, sunrise is at 06:02 and sunset at 18:58. On the last day of January, sunrise is at 06:19 and sunset at 19:01 +13.
Sunshine
In January, the average sunshine is 7.9h.UV index
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. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index, 7 during January, leads to the following recommendations:
Deflect overexposure. Sun protection is a necessity. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Heads up! UV intensity is amplified by reflections from water and sand.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Apia, Samoa
- Average high temperature in January: 28.5°C
The warmest months (with the highest average high temperature) are March and April (28.7°C).
The month with the lowest average high temperature is September (27.3°C).
- Average low temperature in January: 27.6°C
The month with the highest average low temperature is January (27.6°C).
The coldest month (with the lowest average low temperature) is August (26°C).
Average pressure in January
Apia, Samoa
- Average pressure in January: 1007.5mbar
The month with the highest atmospheric pressure is September (1012.3mbar).
The month with the lowest atmospheric pressure is January (1007.5mbar).
Average wind speed in January
Apia, Samoa
- Average wind speed in January: 17.8km/h
The windiest month (with the highest average wind speed) is July (24.7km/h).
The calmest month (with the lowest average wind speed) is March (14.8km/h).
Average humidity in January
Apia, Samoa
- Average humidity in January: 76%
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 in January
Apia, Samoa
- Average rainfall in January: 175mm
The wettest month (with the highest rainfall) is January (175mm).
The driest month (with the least rainfall) is September (57mm).
Average rainfall days in January
Apia, Samoa
- Average rainfall days in January: 19.9 days
The month with the highest number of rainy days is April (22.7 days).
The month with the least rainy days is September (18.7 days).
Average sea temperature in January
Apia, Samoa
- Average sea temperature in January: 29.3°C
The best month for swimming (with the highest average sea temperature) is March (29.7°C).
The coldest months (with the lowest average sea temperature) are August and September (27.9°C).
Average daylight in January /
Average sunshine in January
Apia, Samoa
- Average daylight in January: 12h and 48min
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 18min).
- Average sunshine in January: 7h and 54min
The month with the most sunshine is March (Average sunshine: 8h and 42min).
The month with the least sunshine is July (Average sunshine: 7h and 18min).
Average sunshine days in January
Apia, Samoa
- Average sunshine days in January: 10 days
The month with the most sunshine days is December (10.4 days).
The month with the least sunshine days is June (2.7 days).
Average UV index in January
Apia, Samoa
- Average UV index in January: 7
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 in January
Apia, Samoa
- Average cloud cover in January: 44
The month with the most cloud cover is July (Cloud cover 49).
The month with the least cloud cover is March (Cloud cover 38).
Average visibility in January
Apia, Samoa
- Average visibility in January: 10km
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).





