Generally, the average temperature in Mirissa barely varies at all. The town overall enjoys warm sunshine and wonderfully clear blue skies all year round. Staying true to the promise of eternal summer, the temperature remains hot throughout with a fair chance of occasional rain showers for the better part of the year.

The warmest time to visit Mirissa is during April and May with temperatures sometimes soaring up to a scorching 31.8 C. If you are after dry weather, then the period from January to March would be an ideal time to visit the bay!