The Maldives Meteorological Service issued a yellow alert on Friday for islands from Baa Atoll to Thaa Atoll, warning of torrential rain and thunderstorms. The alert runs from 9:30am to 1:00pm.
A white alert, for heavy rain and thunderstorms, covers the area from Shaviyani Atoll to Addu City from 8:10am to 2:00pm.
Moderate rain was falling at Hulhulé on Friday morning, where the temperature was 25.8C. Thundershowers were forecast for Hulhulé and Hanimaadhoo, with showers at Kadhdhoo and fine weather at Kaadehdhoo and Gan.
The service said earlier this week that rain was likely across the country for five days, with the heaviest falls expected over the weekend.
Winds and seas are expected to stay relatively calm during the period, although squalls could be moderately strong.
In its outlook for October, the service said rainfall was likely to be above normal in the northern and central atolls and below normal in the south.
The Maldives has two monsoons. The north-east monsoon, iruvai, usually runs from January to March, and the south-west monsoon, hulhangu, from May to November. April and December are transition months.