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
January's advent denotes a minor fluctuation in the average high-temperature to a tropical 30.8°C (87.4°F) from December's 29.9°C (85.8°F). During January, the average low-temperature in Nittambuwa is a pleasant 22.8°C (73°F).Heat index
The average heat index in January is calculated to be a torrid 38°C (100.4°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.Remember that heat index calculations are made for conditions in the shade 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 'real feel' or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.
Humidity
January and February, with an average relative humidity of 73%, are the least humid months in Nittambuwa, Sri Lanka.Rainfall
The month with the least rainfall is January, when the rain falls for 9.7 days and typically collects 29mm (1.14") of precipitation.Daylight
In January, the average length of the day is 11h and 46min.On the first day of the month, sunrise is at 06:21 and sunset at 18:04. On the last day of January, sunrise is at 06:28 and sunset at 18:17 +0530.
Sunshine
January through April, with an average of 9.2h of sunshine, are months with the most sunshine in Nittambuwa.UV index
January through April, July, September, November and December, with an average maximum UV index of 7, are months with the highest UV index in Nittambuwa. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 7 in January interprets into the following recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in Nittambuwa in January?
What is the least humid month in Nittambuwa?
What is the average humidity in January in Nittambuwa?
What is the driest month in Nittambuwa?
How many days does it rain in January in Nittambuwa?
How many hours of daylight does Nittambuwa have in January?
When is the sunrise / sunset in January in Nittambuwa?
What are the months with the most sunshine in Nittambuwa?
How many hours of sunshine does Nittambuwa have in January?
What is the month with the highest UV index in Nittambuwa?
What is the UV index reading in January in Nittambuwa?
Average temperature in January
Nittambuwa, Sri Lanka
- Average high temperature in January: 30.8°C
The warmest month (with the highest average high temperature) is March (32.1°C).
The month with the lowest average high temperature is July (29.2°C).
- Average low temperature in January: 22.8°C
The month with the highest average low temperature is May (26.4°C).
The coldest month (with the lowest average low temperature) is January (22.8°C).
Average pressure in January
Nittambuwa, Sri Lanka
- Average pressure in January: 1011.7mbar
The month with the highest atmospheric pressure is January (1011.7mbar).
The months with the lowest atmospheric pressure are May and June (1008.4mbar).
Average wind speed in January
Nittambuwa, Sri Lanka
- Average wind speed in January: 16.2km/h
The windiest month (with the highest average wind speed) is June (18.3km/h).
The calmest month (with the lowest average wind speed) is March (9.1km/h).
Average humidity in January
Nittambuwa, Sri Lanka
- Average humidity in January: 73%
The months with the highest relative humidity are June, July and August (82%).
The months with the lowest relative humidity are January and February (73%).
Average rainfall in January
Nittambuwa, Sri Lanka
- Average rainfall in January: 29mm
The wettest month (with the highest rainfall) is June (231mm).
The driest month (with the least rainfall) is January (29mm).
Average rainfall days in January
Nittambuwa, Sri Lanka
- Average rainfall days in January: 9.7 days
The month with the highest number of rainy days is August (28.4 days).
The month with the least rainy days is January (9.7 days).
Average daylight in January /
Average sunshine in January
Nittambuwa, 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: 9h and 1min
The months with the most sunshine are January, February, March and April (Average sunshine: 9h and 12min).
The month with the least sunshine is November (Average sunshine: 6h and 36min).
Average sunshine days in January
Nittambuwa, Sri Lanka
- Average sunshine days in January: 20 days
The month with the most sunshine days is January (20 days).
The month with the least sunshine days is August (1.2 days).
Average UV index in January
Nittambuwa, Sri Lanka
- Average UV index in January: 7
The months with the highest UV index are January, February, March, April, July, September, November and December (UV index 7).
The months with the lowest UV index are May, June, August and October (UV index 6).
Average cloud cover in January
Nittambuwa, Sri Lanka
- Average cloud cover in January: 21
The month with the most cloud cover is June (Cloud cover 57).
The month with the least cloud cover is January (Cloud cover 21).
Average visibility in January
Nittambuwa, Sri Lanka
- Average visibility in January: 10km
The months with the highest visibility are January, February, March, April, June, July, September and December (10km).
The months with the lowest visibility are May, August, October and November (9km).
