Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
January
Weather in January
Temperature
The introduction of January notes a subtle temperature variation to a still warm 28.5°C (83.3°F) from December's 28.3°C (82.9°F). The month of January shows a minor drop from daytime temperatures, generally recording a low average of 27.6°C (81.7°F).Heat index
For 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.Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is achieved by amalgamating air temperature with the relative humidity readings. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are especially crucial for babies and toddlers. 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 Sapapali'i, the average relative humidity in January is 76%.Rainfall
January is the month with the most rainfall. Rain falls for 19.9 days and accumulates 175mm (6.89") of precipitation.Daylight
The average length of the day in January in Sapapali'i is 12h and 49min.On the first day of January, sunrise is at 06:04 and sunset at 18:59. On the last day of the month, sunrise is at 06:21 and sunset at 19:03 +13.
Sunshine
In January, the average sunshine is 7.9h.UV index
The months with the highest UV index are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index, 7 during January, leads to the following recommendations:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during January?
What is the average humidity in January?
What is the wettest month?
How many days does it rain in January?
What is the average length of the day in January?
When are sunrise and sunset in January?
How long on average sun shines in January?
What is the month with the highest UV index?
What is the month with the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Sapapali'i, 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
Sapapali'i, 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
Sapapali'i, 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
Sapapali'i, 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
Sapapali'i, 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
Sapapali'i, 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 daylight in January /
Average sunshine in January
Sapapali'i, Samoa
- Average daylight in January: 12h and 5min
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 5min
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
Sapapali'i, 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
Sapapali'i, 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
Sapapali'i, 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
Sapapali'i, 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).
