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Kalutara Weather in January
January in Kalutara sees daytime temperatures around 31°C (88°F) and lows of 24°C (75°F) at night. With around 86 mm (3.4 in) of rainfall expected, it's worth packing a rain jacket.
Rainfall in Kalutara in January
Records from the past 30 years suggest around 5 days of rain, with 86 mm (3.4 in) average for the month. Although rain is not especially frequent, individual showers can still be quite heavy.
Temperature in Kalutara in January
In January, expect very high temperatures in Kalutara, with highs of 31°C (88°F) and lows of 24°C (75°F) at night. Sunshine and humidity can make it feel even warmer than the raw temperature suggests. With lows around 24°C (75°F), the nights are warm enough that a sheet is usually all you need for bedding.
Sunshine in Kalutara in January
Expect a lot of sunshine this month, with about 248 hours of sun. These sunny conditions add to the overall experience.If you're a fan of comfortable temperatures and drier conditions, January is a great time to visit.
Kalutara Temperature in January
Min Temperature
24°C (75°F)
Max Temperature
31°C (88°F)
Chance of Rain
16%
Precipitation
86 mm (3.4 in)
Rainy days
5 days
Humidity
70% *
Sunshine
248 hours *
Percentage Sunshine
*
* Data from: Colombo, Sri Lanka (36 KM, 22 Miles).
Kalutara Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Kalutara - and find the best time to visit.
Daily Historical Temperatures
48-year average (1976-2026)
Based on our historical records, temperatures in Kalutara typically stay consistent throughout January, with daily highs averaging around 31°C (88°F). Nights are warm, with lows around 23°C (73°F).
Average temperatures in January
Daily Historical Precipitation
48-year average (1976-2026)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in January
Historical weather records for Kalutara in January
Browse day-by-day weather records for Kalutara spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Kalutara historical weather extremes in January
Based on 24 years of weather observations (2001-2025), these are the most extreme conditions recorded in Kalutara.
- Kalutara recorded its highest January temperature of 36°C (97°F) on January 26, 2016.
- On January 9, 2011, Kalutara saw its coldest January day with temperatures maxing out at 25°C (77°F).
Best Places in Sri Lanka in January
Find out more about the weather in Sri Lanka and which places have the best travel conditions in this month. See all of Sri Lanka in January →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Kalutara in January
Warm but pleasant conditions in Kalutara in January. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Expect heavy rainfall, so bring good rain protection and waterproof bags. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.
What To Do in Kalutara in January
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming9/10 -
Cycling7/10 -
Walking7/10 -
Camping8/10 -
Outdoor sports7/10
Kalutara 3-Day Forecast
More climate data for Kalutara
Temperature Rainfall Sunshine Humidity
See the full Kalutara climate overview or explore weather in Sri Lanka.
Popular in January
Where to go in January - average daytime high across popular destinations.
Colombo
32°C (90°F) Negombo31°C (88°F) Mirissa30°C (86°F) Unawatuna29°C (84°F) Hikkaduwa29°C (84°F) Galle29°C (84°F) Kandy
27°C (81°F) Nuwara Eliya25°C (77°F) Bucket list
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