January weather forecast
Nattarampota, Sri Lanka

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Weather in January

January, the same as December, is a moderately hot winter month in Nattarampota, Sri Lanka, with an average temperature varying between 18.2°C (64.8°F) and 28.3°C (82.9°F).

Temperature

January's climate shows a minor adjustment in average high-temperatures to a still warm 28.3°C (82.9°F) from December's 27.5°C (81.5°F). January sees the temperature falling to a mean low of 18.2°C (64.8°F).

Heat index

During January, the heat index is appraised at a tropical 33°C (91.4°F). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.
Heat index's context suggests values are appropriate for shady areas and slight breezes. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.

Humidity

In Nattarampota, the average relative humidity in January is 80%.

Rainfall

The month with the least rainfall is January, when the rain falls for 14.1 days and typically collects 38mm (1.5") of precipitation.

Daylight

In January, the average length of the day is 11h and 45min.
On the first day of the month, sunrise is at 06:19 and sunset at 18:01. On the last day of January, sunrise is at 06:26 and sunset at 18:14 +0530.

Sunshine

The average sunshine in January in Nattarampota is 8.5h.

UV index

The months with the highest UV index in Nattarampota are January through September, November and December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: An average maximum UV index of 6 in January leads to these recommendations:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Stay sun-safe with clothing that is both closely woven and worn loosely.
Updated: Feb 6, 2024 | Published by: Weather Atlas | About Us / Weather Forecasting / Data Sources

Frequently asked questions

Is it hot in Nattarampota during January?

In Nattarampota, 28.3°C (82.9°F) is the average high-temperature and 18.2°C (64.8°F) is the average low-temperature during January. In January, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is appraised at 33°C (91.4°F).

What is the average humidity in January in Nattarampota?

In Nattarampota, Sri Lanka, the average relative humidity in January is 80%.

What is the driest month in Nattarampota?

January is the month with the least rainfall. Rain falls for 14.1 days and accumulates 38mm (1.5") of precipitation.

How much does it rain in Nattarampota in January?

In Nattarampota, during January, the rain falls for 14.1 days and regularly aggregates up to 38mm (1.5") of precipitation.

What is the average length of the day in January in Nattarampota?

In January, the average day length is 11h and 45min.

When are sunrise and sunset in January in Nattarampota?

On the first day of January in Nattarampota, Sri Lanka, sunrise is at 06:19 and sunset at 18:01. On the last day of the month, sunrise is at 06:26 and sunset at 18:14 +0530.

How long on average sun shines in January in Nattarampota?

The average sunshine duration in January is 8.5h.

When is the highest UV index in Nattarampota?

The months with the highest UV index are January through September, November and December, with an average maximum UV index of 6.

How high is the UV index in January in Nattarampota?

In Nattarampota, the average daily maximum UV index in January is 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Nattarampota, Sri Lanka

Average temperature in January - Nattarampota, Sri Lanka
  • Average high temperature in January: 28.3°C

The warmest month (with the highest average high temperature) is March (31.5°C).
The month with the lowest average high temperature is December (27.5°C).

  • Average low temperature in January: 18.2°C

The months with the highest average low temperature are May and June (21.8°C).
The coldest month (with the lowest average low temperature) is February (18.1°C).

Average pressure in January
Nattarampota, Sri Lanka

Average pressure in January - Nattarampota, 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 (1008.1mbar).

Average wind speed in January
Nattarampota, Sri Lanka

Average wind speed in January - Nattarampota, Sri Lanka
  • Average wind speed in January: 7.7km/h

The windiest month (with the highest average wind speed) is June (13.5km/h).
The calmest month (with the lowest average wind speed) is April (4.7km/h).

Average humidity in January
Nattarampota, Sri Lanka

Average humidity in January - Nattarampota, Sri Lanka
  • Average humidity in January: 80%

The month with the highest relative humidity is December (84%).
The month with the lowest relative humidity is March (74%).

Average rainfall in January
Nattarampota, Sri Lanka

Average rainfall in January - Nattarampota, Sri Lanka
  • Average rainfall in January: 38mm

The wettest month (with the highest rainfall) is October (301mm).
The driest month (with the least rainfall) is January (38mm).

Average rainfall days in January
Nattarampota, Sri Lanka

Average rainfall days in January - Nattarampota, Sri Lanka
  • Average rainfall days in January: 14.1 days

The month with the highest number of rainy days is May (28.6 days).
The month with the least rainy days is January (14.1 days).

Average daylight in January /
Average sunshine in January
Nattarampota, Sri Lanka

Average daylight in January / Average sunshine in January - Nattarampota, 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: 8h and 3min

The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

Average sunshine days in January
Nattarampota, Sri Lanka

Average sunshine days in January - Nattarampota, Sri Lanka
  • Average sunshine days in January: 14.8 days

The month with the most sunshine days is January (14.8 days).
The month with the least sunshine days is May (1.2 days).

Average UV index in January
Nattarampota, Sri Lanka

Average UV index in January - Nattarampota, Sri Lanka
  • Average UV index in January: 6

The months with the highest UV index are January, February, March, April, May, June, July, August, September, November and December (UV index 6).
The month with the lowest UV index is October (UV index 5).

Average cloud cover in January
Nattarampota, Sri Lanka

Average cloud cover in January - Nattarampota, Sri Lanka
  • Average cloud cover in January: 34

The months with the most cloud cover are November and December (Cloud cover 47).
The month with the least cloud cover is March (Cloud cover 27).

Average visibility in January
Nattarampota, Sri Lanka

Average visibility in January - Nattarampota, Sri Lanka
  • Average visibility in January: 8km

The months with the highest visibility are June, July and August (10km).
The months with the lowest visibility are January, February, March, April, November and December (8km).

Nattarampota, Sri Lanka

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