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Weather in Sri Lanka in January – is it worth traveling to?

Is the weather pleasant in Sri Lanka? See historical weather data for January to see if it meets your needs.
Check flight prices to Sri Lanka on Avionero:
January

Is the weather good in Sri Lanka in January 2025?

OK Weather
Warm
🌧️
Rainy

For the past few decades, the average daily temperatures in Sri Lanka during January have been around +31°C.

In Sri Lanka the temperature rarely varies more than seven degrees between the different parts with the highest temperature +31°C in Colombo to +31°C in Colombo. So you should be able to pack for similar conditions wherever you go in the country.

Temperature, wind and humidity in January

Average
Colombo
☀️
+31°C
Avg. max. temperature
+20°C
Min.
+36°C
Max.
62 mm
Total precipitation
75%
Avg. humidity
3 m/s
Avg. wind
5 ☀️
Sunny Days
11 ⛅️
Cloudy
13 🌦
Rainy
Our opinion: Sri Lanka has OK weather in January.
Sri Lanka in January – what city is the…
  • rainiest? Colombo, with an average of 2 mm of rain and humidity of 75%;
  • warmest? Colombo, with daytime temperatures averaging +31°C;
  • windiest? Colombo, with an average of 3 m/s;
  • coolest? Colombo, with daytime temperatures averaging +31°C;

How good is the weather in Sri Lanka in January?

During January, the Sri Lanka is characterized by variable weather with air pressure around 1009 HPa and therefore elements of sun, rain, and wind – with a little extra emphasis on the latter two. The humidity in January ranges between 75% in Colombo and 75% in Colombo.

How warm is it in Sri Lanka during January?

Variable weather with sun, rain and wind: +30°C in average daily temperature.

This is how hot it usually is in January

The average daily temperatures above don't tell you everything about how hot it can be in Sri Lanka. For example, cold nights can make a big difference for those staying in tents or unheated houses. Extra hot days, on the other hand, can make a big difference for those who plan to engage in demanding physical training or competition. So here are some more temperatures for January:
Average
Colombo
  • Average maximum temperature for the month: +30°C;
  • Average minimum temperature for the month: +23°C;
  • Highest monthly temperature: +31°C;
  • Lowest monthly temperature: +23°C;

Monthly temperatures:

Average
Colombo
  • Warmest: January with an average +31°C during the day;
  • Coldest: June with an average +29°C of the day;
  • Hottest month in hottest city: January in Colombo;
  • Coldest month in coolest city: June in Colombo;

Can you swim in Sri Lanka in January?

Here are the minimum and maximum water temperatures in cities in Sri Lanka in January:
Colombo
👙
Warm
26°C - 29°C
You can definitely swim in Colombo in January, with the water temperature of +26°C and up.

Winds in Sri Lanka during January

Wind speed in Sri Lanka in January based on historical data:
Average
Colombo

January tends to offer light winds averaging 3 m/s. However, coastal cities may experience breezes during the mornings and afternoons.

Comparison between cities in January:

  • Highest average wind speed: Colombo with 3 m/s;
  • Lowest average wind speed: Colombo with 3 m/s;
  • Windiest day of the month: Colombo with 3 m/s;
  • The least windy day of the month: Colombo with 2 m/s;

Humidity and precipitation in Sri Lanka in January

Amount of rainfall in mm during January in Sri Lanka based on historical data:
Average
Colombo
January tends to be an extremely humid month with 81% humidity and 188 mm rainfall. In general the humidity tends to be a little lower in mountainous regions and more humid closer to water.

Comparison between cities in January:

Average
Colombo
  • Highest average rainfall: Colombo with 62 mm;
  • Lowest average rainfall: Colombo with 62 mm;
  • Most number of rainy days: Colombo with 13 rainy days;
  • Least number of rainy days: Colombo with 13 rainy days;
  • Highest risk of rain during the day: Colombo with 42%;
  • Least risk of rain during the day: Colombo with 42%;
  • Highest average humidity: Colombo with 75%;
  • Lowest average humidity: Colombo with 75%;

Tips for traveling to Sri Lanka in January

Looking for some tips for traveling to the sun, snow, or whatever you're aiming for Sri Lanka? Activities, weather, and clothing are closely linked. In addition, it's important to pack only what you really need so you don't have to worry about heavy packing or paying extra baggage fees.

Here is some advice on what to pack and what kind of activities you can do in the Sri Lanka based on the weather that January is expected to bring. The advice applies to the country as a whole – local weather and possible activities may differ somewhat.

rainy, warm weather with light winds and very high humidity in January
Avionero

Pack right for January

The weather makes a difference when it comes to packing - especially which items should go in your suitcase. The tips below are designed to help you pack light and right without carrying more than necessary.
  • For light showers, an umbrella or a thin and light rain cape is usually sufficient, while more rain may require rainwear and rain boots.
  • Warm - neither hot nor cool, are probably the most comfortable when you think of sunbathing. Shorts, shorter skirts or dresses, tank tops and t-shirts are the basics here. If you're going to a seaside resort, don't forget your swimwear and maybe even a snorkel, mask and flippers.
  • Light winds are probably most comfortable in hot weather but is cooling in cool and cold weather. If it is hot (when the air temperature is about 30 degrees), the wind can have a warming effect. A thin, windproof jacket and long trousers help to counteract these effects.
  • High humidity means that the air conducts heat to and from the skin more easily. For example, if the air is hot (above skin temperature), it will be harder to stay cool. On the other hand, if the air is cool or cold, it is more difficult to stay warm. In high humidity, the choice of clothing makes less of a difference. However, your physical activity plays a bigger role.

FAQ

Frequently asked questions about the weather in Sri Lanka in January:

What can you do outside when it's warm in Sri Lanka?

Bathing and sunbathing can be suitable. Warm (but not hot) days are also good for activities that are not so physically demanding: sightseeing on foot, by boat, on a scooter, camel riding. You can also exercise easily as long as you make sure to cool down and quench thirst.

Is January a good time to visit Sri Lanka?

It’s always a good time to visit Sri Lanka, but the weather is changeable in January, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.

Monthly weather in Sri Lanka

Source of the data

For this page, we’ve looked at the typical weather in Sri Lanka, based on historical hourly weather data from January 1, 1979, to December 31, 2023.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.