Bali, map

Bali is an Indonesian island, located just a few degrees south of the equator, and has a tropical climate, hot all year round, with a rainy season from November to March, and a relatively dry season from April to October, when, however, some showers can still occur. In the rainy season, it usually rains a couple of hours in the morning and a couple of hours in the afternoon, while in the rest of the day the sun shines for a few hours.
Temperatures are high and uniform throughout the year. They are slightly higher from October to March, when the daily average is around 27 °C (81 °F), and a bit lower from June to September, when the daily average is around 26 °C (79 °F). In the rainy season, there's muggy heat due to high relative humidity.
Here are the average temperatures at the airport, located near the capital Denpasar.
Denpasar - Average temperatures
MonthJanFebMarAprMayJunJulAugSepOctNovDec
Min (°C)232323232322222222232323
Max (°C)313131313130292930313131
Min (°F)737373737372727272737373
Max (°F)888888888886848486888888

Throughout the year, 1,700 millimetres (67 inches) of rain fall, with a maximum from December to February, when the rainfall goes from 280 to 350 mm (11 to 13.5 in) per month. In the dry period, from April to October, the rainfall is below 100 mm (4 in) per month, with a minimum in August of just 15 mm (0.6 in).
The rainfall amount, however, can change from one year to another, so if we analyze the rainfall records, we can see that sometimes the rainy season can last until April, or begin as early as in October.
Here is the average precipitation in Denpasar.
Denpasar - Average precipitation
MonthJanFebMarAprMayJunJulAugSepOctNovDecYear
Prec.(mm)350280215907570501540901502901715
Prec.(in)13.8118.53.532.820.61.63.55.911.467.5
Days191820128743361016126

In the interior of the island, occupied by hills and mountains, the weather tends to be more easily cloudy and rainy. The highest peak is the volcano Agung, 3,000 metres (9,800 feet) high. Being closer to the inland elevations, the northern coast is rainier than the southern one. The southern part of the island, where the capital Denpasar is located, in addition to cities such as Kuta, Seminyak and Pecatu, is therefore the least rainy. If you are planning some hiking at high altitudes, keep in mind that above 1,000 metres (3,300 feet), in towns such as Bedugul and Kintamani, it's cool in the evening and at night, especially in the dry season, while above 2,000 metres (6,500 feet) it can get quite cold. In addition, at noon and in the afternoon the chance of thunderstorms in the highlands is higher than on the southern side, where the majority of the resorts are found.
In Bali, there's plenty of sunshine in the dry season, while in the rainy season the sun shines for a few hours a day, between a rainshower and the other. In the interior of the island, a blanket of clouds often lies over the mountain peaks.
Denpasar - Sunshine
MonthJanFebMarAprMayJunJulAugSepOctNovDec
Hours667891010109977

From November to mid-May, but more often from January to mid-April, Bali can be brushed by tropical cyclones, which usually do not hit it directly, but pass over the ocean not far to the south, bringing an increase in wind and rainfall.

Bali

The sea in Bali is warm enough to swim in throughout the year: the water temperature goes from 29 °C (84 °F) from November to May, to 27 °C (81 °F) in July, August and September. The western part of the Bukit peninsula, where waves are higher, is preferable for surfing.
Bali - Sea temperature
MonthJanFebMarAprMayJunJulAugSepOctNovDec
Temp (°C)292929292928272727282929
Temp (°F)848484848482818181828484

When to go


The best time to travel to Bali and enjoy its beaches, goes from June to September: the weather is usually sunny, the heat is not too intense, and in any case it's tempered by the breeze; there are just some brief downpours or thunderstorms every now and then, however, more likely at night and in the early morning. August is the best month, since it is the driest. May and October, too, are months you may want to consider, in fact they are the best ones among those that do not fall in the high season: they are a bit more muggy and rainy, but they are still out of the actual rainy season. However, in inland and mountainous areas, thunderstorms are frequent.

What to pack


Being Bali's climate hot all year round, you can bring light clothes of natural fibres, a sun hat, a scarf for the breeze, and a light sweatshirt for the evening. From November to March, you can add a light raincoat or an umbrella.
When going to the reef, you can bring snorkeling equipment, including water shoes or rubber-soled shoes.
When going mountain climbing, bring hiking shoes, a sweatshirt or sweater, a jacket, a raincoat.