Riau in Indonesia sees its peak temperatures in May (33°C (91°F)) and its coolest in December (31°C (88°F)). For a full breakdown of what to expect throughout the year, we've put together a climate overview based on data from Pekanbaru, the region's most visited city. For more detailed climate information about other cities in the area, please see the section beneath the map further down the page.
The climate in Riau, particularly in Pekanbaru, is characterized by consistently high temperatures, with average maximums never falling below 31°C (88°F).
The hottest season always takes place in April, May and June.
Precipitation in Riau varies considerably throughout the year. The wettest conditions occur in November with 313 mm (12 in) of rain, while July stays relatively dry with 134 mm (5.3 in).