Dunedin Weather in May

The climate in Dunedin during May can be summarized as hot, humid and a little damp.

May is in the spring in Dunedin and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a muggy 30°C (87°F), whilst at night 20°C (67°F) is normal.

On average May is the 6th driest month of the year in Dunedin with around 84mm 3.3 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 6 days, although this may vary considerably.

On the flip side this corresponds to an average of 10.7 hours of sunshine per day.

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Dunedin in May 2025.