Mirissa in december: average Weather, Temperature and Climate
Weather in Mirissa in december 2026
The weather in Mirissa in the month of december comes from statistical datas on the past years. You can view the weather statistics for all the month, but also by clicking on the tabs for the beginning, the middle and the end of the month.
Average weather throughout december
good weather UV index: 7
Weather at 6am
81°F
Clear/Sunny
42% of time
34%
19%
3%
Weather at 12pm
86°F
Moderate rain at times
35% of time
32%
18%
13%
Weather at 6pm
79°F
Moderate rain at times
42% of time
22%
21%
10%
Weather at 3am
76°F
37%
36%
17%
9%
Evolution of daily average temperature and precipitation in Mirissa in december
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Mirissa in december.
The climate of Mirissa in december is good
the weather in Mirissa in december is wet (with 4.1in of precipitation over 6 days). It should be noted an improvement from the previous month since in november it receives an average of 6.7in of precipitation over 12 days.
The climate quite good in this city december. The high seasonal norm is 88°F. On average, the recorded minimum temperature is 81°F. Thus, the mean temperature average on this month of december in Mirissa is 85°F. Note that these seasonal averages are in contrast with those observed in Mirissa in december with a maximum record of 94°F in 2017 and a minimum record of 70°F in 2021. You can expect to have about 23 days with temperatures above 86°F, or 74 of time.
On average, in Mirissa, the days of december last 11:47. Sunrise is at 06:10 and sunset is at 17:57.
With good weather conditions, this month is a good time to go in Mirissa in Sri Lanka.
Seasonal average climate and temperature of Mirissa in december
Check below seasonal norms These statistics are set from the weather statements earlier years of the month of december.
| December | |||||
| Outside temperature | |||||
| Average temperature | 85°F | ||||
| Highest temperature | 88°F | ||||
| Lowest temperature | 81°F | ||||
| Highest record temperature | 94°F (2017) | ||||
| Lowest record temperature | 70°F (2021) | ||||
| Number of days at +86°F | 23 day(s) (74%) | ||||
| Number of days at +65°F | 31 day(s) (100%) | ||||
| Sea temperature | |||||
| Average sea temperature | 83°F | ||||
| Lowest sea temperature | 81°F | ||||
| Highest sea temperature | 85°F | ||||
| Wind | |||||
| Wind speed | 13km/h | ||||
| Wind temperature | 81°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 4.1in | ||||
| Number of days with rainfall | 6 day(s) (21%) | ||||
| Record daily rainfall | 2in (2010) | ||||
| Other climate data | |||||
| Humidity | 83% | ||||
| Visibility | 9.59km | ||||
| Cloud cover | 38% | ||||
| UV index | 7 | ||||
| Daily sunshine hours | 9 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 06:10 | ||||
| Time of sunset | 17:57 | ||||
| Length of day | 11:47 | ||||
| Our opinion about the weather in december | |||||
| Our opinion at whereandwhen.net | good | ||||
How was the weather last december?
Here is the day by day recorded weather in Mirissa in december 2025:
77°F to 83°F
76°F to 86°F
76°F to 83°F
76°F to 83°F
76°F to 85°F
76°F to 85°F
74°F to 86°F
76°F to 85°F
76°F to 83°F
76°F to 85°F
76°F to 83°F
76°F to 83°F
74°F to 85°F
74°F to 83°F
76°F to 83°F
76°F to 83°F
76°F to 85°F
76°F to 88°F
76°F to 83°F
76°F to 85°F
76°F to 85°F
74°F to 81°F
74°F to 83°F
74°F to 83°F
74°F to 81°F
74°F to 85°F
74°F to 83°F
74°F to 83°F
74°F to 86°F
76°F to 85°F
76°F to 85°F
Map: other cities in Sri Lanka in december
Cities near Mirissa:
| Weligama in december | good weather |
| Matara in december | good weather |
| Galle in december | good weather |
| Unakuruwa Beach in december | good weather |
| Tangalle in december | good weather |
| Hikkaduwa in december | good weather |
| Neluwa in december | tolerable weather |
| Sinharaja in december | tolerable weather |
| Ambalangoda in december | good weather |
| Udawalawe National Park in december | tolerable weather |
| Bentota in december | good weather |
| Hambantota in december | good weather |
Click over cities on the map for information about the weather in december.
Mirissa
perfect weather
good
tolerable
bad
very bad
Weather data for Mirissa in december:
Weather data for Mirissa for december are derived from an average of the weather forecast since 2009 in Mirissa. There is a margin of error and these forecasts are to be considered as general information only. The weather in Mirissa can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Mirissa.