Climate Overview
The climate in Mirissa city is hot. The average annual temperature is 27°C and approximately 2185mm of precipitation falls per year. Mirissa city receives a notable amount of rainfall throughout the year, including during its driest month. Mirissa city sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Mirissa city has relatively stable temperatures year-round, staying within a 4°C range. The warmest month is April, when average highs reach 29°C and the mean temperature sits around 28°C. January is the coolest month, with minimum temperatures around 25°C and an average of 27°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows.
Precipitation
Mirissa city is a very wet location, receiving approximately 2185mm of precipitation annually, which averages out to around 182mm per month. The wettest month is May, averaging 339mm of rainfall. October and November also tend to see above-average precipitation. The driest month is February, with just 49mm. That's 289mm less than May, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.
Wind
Mirissa city is mildly breezy, with an average annual wind speed of 19km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is July, averaging 27km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in January, with average winds dropping to 13km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 14km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans. Wind tends to pick up during the summer months. The seasonal averages are 14km/h in winter, 18km/h in spring, 26km/h in summer, 20km/h in autumn.
Seasons
89 days until Summer
It is currently spring in Mirissa city, which began on March 20, 2026. Mirissa city sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in April at around 29°C, while the coldest stretch bottoms out in January near 25°C. Summer is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 26 to 29°C. Rainfall is heavy, totalling around 538mm across the season with a monthly average of 179mm. Winds are moderate at around 18km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 26 to 28°C. Rainfall is heavy, totalling around 612mm across the season with a monthly average of 204mm. Winds are strong, averaging 26km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 26 to 28°C. Rainfall is heavy, totalling around 760mm across the season with a monthly average of 253mm. Winds are moderate at around 20km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 25 to 29°C. Precipitation is moderate at around 275mm for the season, averaging 92mm per month. Winds are generally light, averaging 14km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Monthly Climate Data
The table below shows monthly climate averages for Mirissa city based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.
