Bontang-Borneo Island weather by month & the best time to visit

🇮🇩 Indonesia · coastal city break · tropical rainforest climate

The best time to visit Bontang-Borneo Island is August — its sunniest month (Sunshine Score 71/100), with January and February close behind. Bontang-Borneo Island averages about 2,147 hours of sunshine a year. Daytime highs around 28°C / 82°F and roughly 113 mm of rain in August.

Jump to: month-by-month table · sea temperature · nearby alternatives · embed this data

Sun hours / year

2,147

Sunniest month

August

Peak score

71/100

Rain / year

2,246 mm

Midday UV at peak

11 (extreme)

Sea at warmest

32°C / 90°F

Population

865k

Elevation

15 m

When is the best time to visit Bontang-Borneo Island?

For sunshine, the best time to visit Bontang-Borneo Island is August, then January and February. The dullest month is January (64/100, 227 mm of rain). The full month-by-month picture is in the table below.

How sunny is Bontang-Borneo Island?

Bontang-Borneo Island gets a moderate 2,147 hours of sunshine a year. Conditions barely change through the year — only 7 Sunshine Score points separate August from January. It ranks #70 of 119 destinations in Indonesia for annual sunshine, below the national median of 2,183 hours. The year's 2,246 mm of rain spreads fairly evenly across the months, with no pronounced dry season.

Sunshine Score by month

Sea temperature in Bontang-Borneo Island by month

The sea off Bontang-Borneo Island is warmest in May at around 32°C / 90°F, and coolest in July at 30°C / 86°F. The water sits at a comfortable 21°C or warmer roughly all year round. Month-by-month sea-surface temperatures are in the Sea column of the table above.

See Bontang-Borneo Island on the interactive sunshine globe →

Nearby places for sunshine

• Samarinda Indonesia · 61 km · best in Aug · 2,001 h sun/yr
• Balikpapan Indonesia · 168 km · best in Aug · 1,972 h sun/yr
• Tanjung Redeb - Borneo Island Indonesia · 225 km · best in Aug · 1,997 h sun/yr
• Palu Indonesia · 294 km · best in Sep · 2,293 h sun/yr
• Tarakan Indonesia · 356 km · best in Jan · 2,242 h sun/yr
• Tawau Malaysia · 472 km · best in Jan · 2,411 h sun/yr

Nearest destinations

• Tanjung Selor-Borneo Island Indonesia · 302 km · 1,997 h sun/yr · best in Jan
• Muara Teweh Indonesia · 311 km · 2,082 h sun/yr · best in Aug