🇱🇰 Weather in Mirissa in October
This is what the weather in Mirissa (Sri Lanka) was like in October in 2016–2025.
Key facts at a glance
Avg. daytime high
28.5 °C
27.8 °C – 28.9 °C
Avg. night-time low
25.9 °C
25.5 °C – 26.4 °C
Avg. rain days in period
27.2
88 % of days · ≥ 1.0 mm
Avg. precipitation in period
301 mm
123 mm – 703 mm
Avg. cloud cover
77 %
This data source has no sunshine hours – average cloud cover shown instead.
Avg. sea temperature
–
Sea temperature unavailable for today (daily limit).
Extremes: Highest temperature 30.4 °C (31 Oct 2025) · Lowest temperature 24.7 °C (25 Oct 2019) · Avg. daily peak wind 22 km/h
Weather mix of all days
- 7Sunny
- 21Partly cloudy
- 10Cloudy
- 83Light rain
- 189Rain
Summary
- On average 28.5 °C during the day and 25.9 °C at night.
- On average 27.2 rain days (Rain day = at least 1.0 mm of precipitation) with 301 mm of precipitation in total.
- Prevailing: Rain.
- Warmest year: 2024 (avg. 28.9 °C), coolest: 2019 (avg. 27.8 °C).
- Wettest year: 2023 (703 mm), driest: 2020 (123 mm).
- Extremes: 30.4 °C on 31 Oct 2025 and 24.7 °C on 25 Oct 2019.
Overall values from all 10 years. How is this calculated?
Charts
Temperatures per year
Average over your travel period
Precipitation & rain days
Year by year
2025
Avg. max28.7°Avg. min26.1°- Rain days
- 26 Rain days
- Precipitation
- 310 mm
- Avg. cloud cover
- 76 % cloudy
- Sea temperature
- –
Max 30.4 °C · Min 25.3 °C
2024
Avg. max28.9°Avg. min26.4°- Rain days
- 24 Rain days
- Precipitation
- 163 mm
- Avg. cloud cover
- 72 % cloudy
- Sea temperature
- –
Max 30.0 °C · Min 25.5 °C
2023
Avg. max28.1°Avg. min25.9°- Rain days
- 31 Rain days
- Precipitation
- 703 mm
- Avg. cloud cover
- 83 % cloudy
- Sea temperature
- –
Max 29.0 °C · Min 25.2 °C
2022
Avg. max28.4°Avg. min25.7°- Rain days
- 30 Rain days
- Precipitation
- 326 mm
- Avg. cloud cover
- 79 % cloudy
- Sea temperature
- –
Max 30.3 °C · Min 25.1 °C
2021
Avg. max28.4°Avg. min25.9°- Rain days
- 29 Rain days
- Precipitation
- 324 mm
- Avg. cloud cover
- 80 % cloudy
- Sea temperature
- –
Max 29.1 °C · Min 25.0 °C
2020
Avg. max28.7°Avg. min25.9°- Rain days
- 19 Rain days
- Precipitation
- 123 mm
- Avg. cloud cover
- 78 % cloudy
- Sea temperature
- –
Max 29.6 °C · Min 25.2 °C
2019
Avg. max27.8°Avg. min25.5°- Rain days
- 31 Rain days
- Precipitation
- 435 mm
- Avg. cloud cover
- 86 % cloudy
- Sea temperature
- –
Max 29.2 °C · Min 24.7 °C
2018
Avg. max28.1°Avg. min25.5°- Rain days
- 29 Rain days
- Precipitation
- 234 mm
- Avg. cloud cover
- 82 % cloudy
- Sea temperature
- –
Max 29.6 °C · Min 24.8 °C
2017
Avg. max28.8°Avg. min26.2°- Rain days
- 29 Rain days
- Precipitation
- 221 mm
- Avg. cloud cover
- 66 % cloudy
- Sea temperature
- –
Max 30.0 °C · Min 25.5 °C
2016
Avg. max28.9°Avg. min25.6°- Rain days
- 24 Rain days
- Precipitation
- 172 mm
- Avg. cloud cover
- 65 % cloudy
- Sea temperature
- –
Max 29.7 °C · Min 24.9 °C
Frequently asked questions
- How warm is it in Mirissa in October?
- Daytime highs averaged 28.5 °C, night-time lows 25.9 °C. The highest value of the past 10 years was 30.4 °C (31 Oct 2025), the lowest 24.7 °C (25 Oct 2019).
- How often does it rain in Mirissa in October?
- On average there were 27.2 rain days (at least 1 mm) with 301 mm of precipitation in total.
Check your exact travel dates
Choose your travel period – we show the weather for exactly those days.
Other destinations in October
Data sources
- Weather data
- Data obtained from the NASA Langley Research Center (LaRC) POWER Project funded through the NASA Earth Science/Applied Science Program
Reanalysis (weather model constrained by observations) on a coarse grid of about 50 km. Values represent a large area and can differ from local conditions, especially on islands, coasts and in mountains. Snow depth is the model value for the grid cell, not the depth on the slopes. No sunshine duration.
Reanalysis (weather model constrained by observations)
Reanalysis values represent a grid cell (approx. 25–50 km) and may differ from local measurements on coasts, islands and in mountains. - Sea temperature
- MUR SST data were provided by JPL under support by NASA MEaSUREs program; accessed via NOAA CoastWatch ERDDAP
Daily multi-scale ultra-high resolution (≈ 1 km) analysis of satellite measurements (infrared, microwave) and in-situ data. Represents the foundation temperature below the daily warm surface layer. (Satellite and in-situ analysis) - Place search
- Natural Earth (public domain) · GeoNames (CC BY 4.0) / OpenStreetMap (ODbL)