How warm is it in Mirissa in July?

Daytime highs averaged 28.7 °C, night-time lows 26.2 °C. The highest value of the past 10 years was 30.2 °C (24 Jul 2024), the lowest 24.7 °C (26 Jul 2020).

How often does it rain in Mirissa in July?

On average there were 21.2 rain days (at least 1 mm) with 105 mm of precipitation in total.

Photo: Ji-Elle · CC BY-SA 3.0

🇱🇰 Weather in Mirissa in July

This is what the weather in Mirissa (Sri Lanka) was like in July in 2017–2026.

Key facts at a glance

Prevailing weather: Light rain

Avg. daytime high

28.7 °C

28.1 °C – 29.4 °C

Avg. night-time low

26.2 °C

25.6 °C – 26.6 °C

Avg. rain days in period

21.2

68 % of days · ≥ 1.0 mm

Avg. precipitation in period

105 mm

45.5 mm – 183 mm

Avg. sunshine per day

n/a

Sunshine duration is not available from this data source.

Avg. sea temperature

–

Sea temperature unavailable for today (daily limit).

Extremes: Highest temperature 30.2 °C (24 Jul 2024) · Lowest temperature 24.7 °C (26 Jul 2020) · Avg. daily peak wind 28 km/h

Weather mix of all days

15Sunny
46Partly cloudy
37Cloudy
136Light rain
76Rain

Summary

On average 28.7 °C during the day and 26.2 °C at night.
On average 21.2 rain days (Rain day = at least 1.0 mm of precipitation) with 105 mm of precipitation in total.
Prevailing: Light rain.
Warmest year: 2024 (avg. 29.4 °C), coolest: 2018 (avg. 28.1 °C).
Wettest year: 2021 (183 mm), driest: 2017 (45.5 mm).
Extremes: 30.2 °C on 24 Jul 2024 and 24.7 °C on 26 Jul 2020.

Overall values from all 10 years. How is this calculated?

Temperatures per year

Average over your travel period

Precipitation & rain days

Year by year

2026
Avg. max29.1°Avg. min26.6°
Rain days
10 Rain days
Precipitation
48.3 mm
Avg. sunshine per day
n/a
Sea temperature
–
Max 29.6 °C · Min 25.7 °C
2025
Avg. max28.3°Avg. min26.0°
Rain days
17 Rain days
Precipitation
76.2 mm
Avg. cloud cover
68 % cloudy
Sea temperature
–
Max 29.0 °C · Min 25.1 °C
2024
Avg. max29.4°Avg. min26.6°
Rain days
29 Rain days
Precipitation
109 mm
Avg. cloud cover
77 % cloudy
Sea temperature
–
Max 30.2 °C · Min 25.5 °C
2023
Avg. max28.6°Avg. min26.3°
Rain days
25 Rain days
Precipitation
97.1 mm
Avg. cloud cover
70 % cloudy
Sea temperature
–
Max 29.4 °C · Min 25.7 °C
2022
Avg. max28.2°Avg. min25.7°
Rain days
21 Rain days
Precipitation
153 mm
Avg. cloud cover
79 % cloudy
Sea temperature
–
Max 29.0 °C · Min 25.1 °C
2021
Avg. max28.5°Avg. min26.2°
Rain days
27 Rain days
Precipitation
183 mm
Avg. cloud cover
83 % cloudy
Sea temperature
–
Max 29.3 °C · Min 25.6 °C
2020
Avg. max28.3°Avg. min26.1°
Rain days
30 Rain days
Precipitation
156 mm
Avg. cloud cover
89 % cloudy
Sea temperature
–
Max 29.4 °C · Min 24.7 °C
2019
Avg. max29.3°Avg. min26.4°
Rain days
17 Rain days
Precipitation
97.9 mm
Avg. cloud cover
75 % cloudy
Sea temperature
–
Max 30.2 °C · Min 25.5 °C
2018
Avg. max28.1°Avg. min25.6°
Rain days
23 Rain days
Precipitation
88.6 mm
Avg. cloud cover
74 % cloudy
Sea temperature
–
Max 28.8 °C · Min 25.0 °C
2017
Avg. max28.9°Avg. min26.3°
Rain days
13 Rain days
Precipitation
45.5 mm
Avg. cloud cover
73 % cloudy
Sea temperature
–
Max 29.7 °C · Min 25.5 °C

Frequently asked questions

How warm is it in Mirissa in July?: Daytime highs averaged 28.7 °C, night-time lows 26.2 °C. The highest value of the past 10 years was 30.2 °C (24 Jul 2024), the lowest 24.7 °C (26 Jul 2020).
How often does it rain in Mirissa in July?: On average there were 21.2 rain days (at least 1 mm) with 105 mm of precipitation in total.

Check your exact travel dates

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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. 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)