If you plan to visit Colombo in December, the weather is typically alright, with an average high temperature of +86°F during the day and approximately 3 sunny days. Expect some rainy, though, as there are typically 18 rainy days in the month and around 163 mm of precipitation. The weather is changeable so you may have to pack for every eventuality. Search flightsin one click on Avionero.
Average weather
☀️
+86°F
Avg. max. temperature
+68°F
Min.
+93°F
Max.
163 mm
Total precipitation
80%
Avg. humidity
2 m/s
Avg. wind
3 ☀️
Sunny Days
6 ⛅️
Cloudy
18 🌦
Rainy
Our opinion: Colombo has OK weather in December.
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Average temperature in Colombo in December
Here are the expected maximum, average and minimum temperatures in Colombo for December based on the historical data.
Last Year
Historical Data
Going from a maximum of +90°F during the day to a minimum of +75°F during the night, the temperature in December averages around +86°F.
The average maximum temperature goes up 25% by the end of the month, compared with the beginning of the month, from +84°F to +88°F.
Is Colombo warm or cold in December?
Colombo is typically warm in December.
Maximum temperatures go up compared to the previous month from +84°F to +86°F. The minimum temperature also goes up from +75°F to +75°F.
It’s generally warm, but pack a long-sleeve shirt for evenings.
Take a look at how December is compared to other months in Colombo:
Water temperature in Colombo in December
Water in Colombo in December is Very warm. It varies from +80°F to +85°F, with an average of +82°F.This is almost similar to the air temperature, which averages +86°F.
In December, water temperatures are average relative to the rest of the year:
The warmest water temperatures in Colombo are reached in April, when the average sea temperature rises to +85°F. The coldest water temperatures are in August, with an average of +81°F.
Can you swim in Colombo in December?
You can definitely swim in Colombo in December, the water is very warm (+82°F in average), and might even be unpleasant for ones who like it more fresh.
🦭
Cold
Below +61°F
🏄♂️
Fresh
61°F - 70°F
🏊
Comfortable
70°F - 77°F
👙
Warm
77°F - 82°F
🔥
Very warm
+82°C and up
Don't forget sunscreen and a hat, it's going to be hot!
Climate in Colombo in December
Colombo weather looks like this, on average, in December and the surrounding months.
November
December
January
Avg. temperature
+84°F
+86°F
+88°F
Min. temperature
+70°F
+68°F
+68°F
Max. temperature
+93°F
+93°F
+97°F
Rainfall
299 mm
163 mm
62 mm
Wind
2 m/s
2 m/s
3 m/s
Avg. water temperature
+84°F
+82°F
+82°F
Humidity
83%
80%
75%
Air pressure
1009 HPa
1010 HPa
1010 HPa
Sunny days
1
3
5
Cloudy days
2
6
11
Rainy days
20
18
13
Snowy days
0
0
0
December weather is still as ok as in November.It’s getting warmer as December arrives. The average maximum temperature goes up from +84°F to +86°F during the day.As December arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 299 mm to 163 mm.It feels drier, as humidity decreases from 83% to 80%.The average wind speed doesn’t change much during December, staying around 2 m/s.The good news is there are likely to be more sunny days in December, from 1 to 3.
January brings much the same weather, it remains ok.
Wind speed in Colombo in December based on historical data.
Last Year
Historical Data
The average wind speed is 3 m/s getting up to 6 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Colombo is gradually decreasing during December, going from 4 m/s to 3 m/s over the course of the month.
Rain
Amount of rainfall in mm during December in Colombo based on historical data.
Last Year
Historical Data
Typically, there is a 81% chance of rain on an average day in December, with total rainfall of approximately 329 mm. The maximum amount of rainfall per day is around 33 mm, which is moderate rain.December is a pretty wet month with over 25 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
Here’s how December is compared with other months in the amount of precipitation, total mm:
Colombo wettest month is October, where a typical day has a 77% chance of precipitation and 300 mm of rainfall per day. February, on the other hand, is the driest month with a mere 46% chance of precipitation and 54 mm of rainfall per day.
How was the weather last December in Colombo?
This is the weather in Colombo in December 2024:
1 December
🌧️
+84°F
2 December
☁️
+83°F
3 December
🌧️
+84°F
4 December
🌧️
+81°F
5 December
🌧️
+85°F
6 December
☁️
+85°F
7 December
🌧️
+88°F
8 December
🌧️
+86°F
9 December
🌧️
+85°F
10 December
🌧️
+87°F
11 December
🌧️
+86°F
12 December
🌧️
+85°F
13 December
☁️
+88°F
14 December
🌧️
+83°F
15 December
🌧️
+82°F
16 December
🌧️
+83°F
17 December
☁️
+88°F
18 December
🌧️
+87°F
19 December
🌧️
+86°F
20 December
☁️
+86°F
21 December
☁️
+89°F
22 December
☁️
+89°F
23 December
☁️
+89°F
24 December
☀️
+87°F
25 December
☁️
+90°F
26 December
☁️
+90°F
27 December
☁️
+88°F
28 December
☁️
+85°F
29 December
☁️
+85°F
30 December
☁️
+87°F
31 December
☁️
+87°F
In December 2024 Colombo had 1 sunny days, 15 cloudy days, and 15 rainy days. The average maximum temperature was +86°F, with an absolute maximum of +90°F and a minimum of +81°F. The average humidity was 85%, with a maximum of 96% and a minimum of 61%. The average wind speed was 3 m/s, with a maximum of 8 m/s and a minimum of 0 m/s.
Are you planning a trip in December?
Climate Change Over the Years
This is how Colombo climate has changed over the last 43 years.
The climate in Colombo in December has not changed that much over the last 43 years.
The average temperature was the lowest in 2000 (+84°F) and the highest in 2020 (+89°F). The driest year was 1980 with only 1662 mm of rainfall, and the wettest year was 2006 with 3008 mm.
FAQ
Frequently asked questions about the weather in Colombo in December:
Is December a good time to visit Colombo?
It’s always a good time to visit Colombo, but the weather is changeable in December, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.
Can you sunbathe in Colombo in December?
December is warm in Colombo. You may enjoy some beach or pool time in the day, but pack something a tad warmer for the evening.
Can you swim in Colombo in December?
Yes, you can swim in Colombo in December, the water is very warm, with temperature averaging at +82°F, but it's important to manage hydration and sun exposure.
Is Colombo rainy in December?
Colombo is often rainy in December. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.
Is it sunny in Colombo in December?
Usually, it’s not very sunny in Colombo in December, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.
For this page, we’ve looked at the typical weather in Colombo, 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.
