Sumatra Weather by Month: Temperature & Rainfall Guide

In January the weather in Sumatra is generally less favorable. The temperatures range from high in Tuk Tuk with 26°C (79°F) to very high in Dumai with 32°C (90°F). These night and day temperatures are an average and some days may be even warmer. So be prepared and bring light clothes.

Find more detailed climate information for Sumatra in January here.

In February the weather in Sumatra ranges from less favorable in Tanjungpandan to good in Medan. The temperatures range from high in Tuk Tuk with 27°C (81°F) to very high in Dumai with 33°C (91°F). These night and day temperatures are an average and some days may be even warmer. So be prepared and bring light clothes.

Find more detailed climate information for Sumatra in February here.

In March the weather in Sumatra ranges from less favorable in Pekanbaru to mixed in Medan. The temperatures range from high in Tuk Tuk with 27°C (81°F) to very high in Dumai with 33°C (91°F). These night and day temperatures are an average and some days may be even warmer. So be prepared and bring light clothes.

Find more detailed climate information for Sumatra in March here.

In April the weather in Sumatra is generally less favorable. The temperatures range from high in Tuk Tuk with 27°C (81°F) to very high in Dumai with 33°C (91°F). These night and day temperatures are an average and some days may be even warmer. So be prepared and bring light clothes.

Find more detailed climate information for Sumatra in April here.

In May the weather in Sumatra ranges from less favorable in Medan to good in Kalianda. The temperatures range from high in Tuk Tuk with 28°C (82°F) to very high in Dumai with 34°C (93°F). These night and day temperatures are an average and some days may be even warmer. So be prepared and bring light clothes.

Find more detailed climate information for Sumatra in May here.

In June the weather in Sumatra ranges from less favorable in Medan to good in Pekanbaru. The temperatures range from high in Tuk Tuk with 28°C (82°F) to very high in Dumai with 34°C (93°F). These night and day temperatures are an average and some days may be even warmer. So be prepared and bring light clothes.

Find more detailed climate information for Sumatra in June here.

In July the weather in Sumatra ranges from less favorable in Medan to good in Pekanbaru. The temperatures range from high in Tuk Tuk with 28°C (82°F) to very high in Medan with 33°C (91°F). These night and day temperatures are an average and some days may be even warmer. So be prepared and bring light clothes.

Find more detailed climate information for Sumatra in July here.

In August the weather in Sumatra ranges from less favorable in Medan to very good in Tanjungpandan. The temperatures range from high in Tuk Tuk with 27°C (81°F) to very high in Jambi with 33°C (91°F). These night and day temperatures are an average and some days may be even warmer. So be prepared and bring light clothes.

Find more detailed climate information for Sumatra in August here.

In September the weather in Sumatra ranges from less favorable in Medan to very good in Kalianda. The temperatures range from high in Tuk Tuk with 27°C (81°F) to very high in Jambi with 33°C (91°F). These night and day temperatures are an average and some days may be even warmer. So be prepared and bring light clothes.

Find more detailed climate information for Sumatra in September here.

In October the weather in Sumatra ranges from less favorable in Medan to good in Kalianda. The temperatures range from high in Tuk Tuk with 27°C (81°F) to very high in Jambi with 33°C (91°F). These night and day temperatures are an average and some days may be even warmer. So be prepared and bring light clothes.

Find more detailed climate information for Sumatra in October here.

In November the weather in Sumatra is generally less favorable. The temperatures range from high in Tuk Tuk with 26°C (79°F) to very high in Pekanbaru with 32°C (90°F). These night and day temperatures are an average and some days may be even warmer. So be prepared and bring light clothes.

Find more detailed climate information for Sumatra in November here.

In December the weather in Sumatra is generally less favorable. The temperatures range from high in Tuk Tuk with 26°C (79°F) to very high in Pekanbaru with 32°C (90°F). These night and day temperatures are an average and some days may be even warmer. So be prepared and bring light clothes.

Find more detailed climate information for Sumatra in December here.