Best Time to Visit Mirissa - practical advice with names and honest picks.
The months to avoid: The wettest months are May and September to November, with 26 to 29 wet days a month (Open-Meteo averages, 2015 to 2024). The table below sets all twelve months side by side: temperature, rain, crowds and prices. Each month links to its own page with events and what to pack.
The months to avoid: The wettest months are May and September to November, with 26 to 29 wet days a month (Open-Meteo averages, 2015 to 2024). The table below sets all twelve months side by side: temperature, rain, crowds and prices. Each month links to its own page with events and what to pack.
Month by month
| Month | High / low | Rainy days | Crowds | Prices | Should you go? |
|---|---|---|---|---|---|
| January | 29C / 23C | 18 | high | high | Yes: peak whale watching season with calm seas and minimal rain |
| February | 31C / 23C | 15 | high | high | Yes: excellent weather continues with slightly fewer crowds than January |
| March | 31C / 24C | 18 | medium | medium | Yes: still great weather but whale season begins to wind down |
| April | 31C / 25C | 26 | low | medium | Maybe: weather becomes unpredictable with more rain and rougher seas |
| May | 29C / 25C | 29 | low | low | No: southwest monsoon begins with heavy rain and rough seas |
| June | 29C / 25C | 27 | low | low | No: peak monsoon season with daily heavy rain |
| July | 29C / 25C | 25 | low | low | No: continued monsoon conditions make beach activities unsafe |
| August | 29C / 25C | 26 | low | low | Maybe: monsoon begins to weaken but conditions remain challenging |
| September | 29C / 25C | 27 | low | medium | Maybe: transitional month with improving but unpredictable weather |
| October | 29C / 24C | 28 | medium | medium | Yes: good value with improving weather and fewer crowds |
| November | 29C / 24C | 26 | medium | medium | Yes: excellent conditions return with manageable crowds |
| December | 29C / 23C | 23 | high | high | Yes: peak season begins with excellent weather |
Best months for what you want
- Least rain: February, with around 15 rainy days a month.
- Fewest people: April to September.
- Lowest prices: May to August.
- Busiest: January, February and December. Book rooms ahead for these months.
Events worth planning around
- Vesak Festival (May): Buddhist celebration with colourful lanterns and decorations throughout town.
- Whale watching season peak (February): Best month for blue whale sightings with calmest seas.
When to avoid
The wettest months are May and September to November, with 26 to 29 wet days a month (Open-Meteo averages, 2015 to 2024). May has about 29 rainy days. Heavy daily rainfall. October has about 28 rainy days. Still some rainy days.
More on Mirissa
The Mirissa overview has costs, areas and transport in one place. The Mirissa travel guide is the longer read.
We plan trips to Mirissa and the rest of Sri Lanka. Tell us your dates and we will put a route together. Our routes are on the tours page.