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 sea temperature 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
January, with an average high of 27.3°C (81.1°F) and a low of 24°C (75.2°F), signifies the coldest month of the year.Heat index
The heat index in January is evaluated at a hot 30°C (86°F). Persisting in activity during long-term exposure might induce weariness, with subsequent heat cramps.Observations indicate that the heat index values are for shady locations with light wind. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
Humidity
In January, the average relative humidity is 80%.Rainfall
In Arugam Bay, in January, during 18.7 rainfall days, 120mm (4.72") of precipitation is typically accumulated. In Arugam Bay, during the entire year, the rain falls for 237.8 days and collects up to 1259mm (49.57") of precipitation.Sea temperature
The months with the coldest seawater are January, February, July through September and December, with an average sea temperature of 28°C (82.4°F).Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) is perceived as agreeably warm, making all water activities enjoyable without the risk of discomfort over lengthy durations.
Daylight
The average length of the day in January is 11h and 47min.On the first day of January, sunrise is at 06:13 and sunset at 17:58. On the last day of the month, sunrise is at 06:21 and sunset at 18:10 +0530.
Sunshine
The average sunshine in January is 7.5h.UV index
January through October, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.Note: In January, the UV index of 7 transforms into the following advice:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Be attentive! The UV exposure is heightened with reflections from sand and water.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months?
What is the average January temperature?
What is the average humidity in January?
How much does it rain in January?
What months are the sea coldest in Arugam Bay?
What is the sea water temperature in January?
What is the average length of the day in January in Arugam Bay?
When are sunrise and sunset in January?
How many hours of sunshine does Arugam Bay have in January?
When is the highest UV index?
How high is the UV index in January?
Average temperature in January
Arugam Bay, Sri Lanka
- Average high temperature in January: 27.3°C
The warmest month (with the highest average high temperature) is June (33°C).
The month with the lowest average high temperature is January (27.3°C).
- Average low temperature in January: 24°C
The month with the highest average low temperature is May (26.6°C).
The coldest month (with the lowest average low temperature) is January (24°C).
Average pressure in January
Arugam Bay, Sri Lanka
- Average pressure in January: 1011.8mbar
The month with the highest atmospheric pressure is January (1011.8mbar).
The month with the lowest atmospheric pressure is June (1007.3mbar).
Average wind speed in January
Arugam Bay, Sri Lanka
- Average wind speed in January: 13.9km/h
The windiest month (with the highest average wind speed) is January (13.9km/h).
The calmest month (with the lowest average wind speed) is September (9.1km/h).
Average humidity in January
Arugam Bay, Sri Lanka
- Average humidity in January: 80%
The month with the highest relative humidity is December (81%).
The months with the lowest relative humidity are June and July (68%).
Average rainfall in January
Arugam Bay, Sri Lanka
- Average rainfall in January: 120mm
The wettest month (with the highest rainfall) is December (272mm).
The driest month (with the least rainfall) is June (30mm).
Average rainfall days in January
Arugam Bay, Sri Lanka
- Average rainfall days in January: 18.7 days
The months with the highest number of rainy days are October and November (25.5 days).
The month with the least rainy days is March (12.8 days).
Average sea temperature in January
Arugam Bay, Sri Lanka
- Average sea temperature in January: 28°C
The best month for swimming (with the highest average sea temperature) is April (30°C).
The coldest months (with the lowest average sea temperature) are January, February, July, August, September and December (28°C).
Average daylight in January /
Average sunshine in January
Arugam Bay, Sri Lanka
- Average daylight in January: 11h and 5min
The month with the longest days is June (Average daylight: 12h and 30min).
The month with the shortest days is December (Average daylight: 11h and 42min).
- Average sunshine in January: 7h and 3min
The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in January
Arugam Bay, Sri Lanka
- Average sunshine days in January: 8.3 days
The month with the most sunshine days is March (15.5 days).
The month with the least sunshine days is November (3.2 days).
Average UV index in January
Arugam Bay, Sri Lanka
- Average UV index in January: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are November and December (UV index 6).
Average cloud cover in January
Arugam Bay, Sri Lanka
- Average cloud cover in January: 47
The month with the most cloud cover is December (Cloud cover 50).
The month with the least cloud cover is April (Cloud cover 22).
Average visibility in January
Arugam Bay, Sri Lanka
- Average visibility in January: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September and October (10km).
The months with the lowest visibility are November and December (9km).
