Weather by Month - Bali

Bali enjoys relatively stable temperatures year-round, with averages ranging from 21°C / 69°F to 27°C / 81°F. Rainfall averages 255 mm / 10.1 in per month, with January typically the wettest. December offers the longest days with around 13 hours of daylight.

Temperature Comparison

Month Low Temperature High Temperature Category
January warm
February warm
March warm
April warm
May warm
June warm
July warm
August warm
September warm
October warm
November warm
December warm

Rain & Sunshine Patterns

Driest Months

#1 August
Best for: outdoor activities & sightseeing
#2 July
Best for: outdoor activities & sightseeing
#3 September
Best for: outdoor activities & sightseeing

Wettest Months

#1 January
Expect: possible showers, pack waterproofs
#2 December
Expect: possible showers, pack waterproofs
#3 February
Expect: possible showers, pack waterproofs

UV & Sun Protection Calendar

High UV Alert:
January, February, March, April, May, June, July, August, September, October, November, December require serious sun protection.
Jan
10
VERY-HIGH
Feb
10
VERY-HIGH
Mar
10
VERY-HIGH
Apr
9
VERY-HIGH
May
8
VERY-HIGH
Jun
7
HIGH
Jul
8
HIGH
Aug
9
VERY-HIGH
Sep
9
VERY-HIGH
Oct
10
VERY-HIGH
Nov
10
VERY-HIGH
Dec
10
VERY-HIGH
Extreme (11+)
Avoid sun during midday, use SPF 50+
Very High (8-10)
Essential sun protection required
High (6-7)
Use SPF 30+, wear hat & sunglasses
Moderate (3-5)
Sun protection recommended
Low-Moderate (1-2)
Minimal protection needed
Low (0)
No protection required

Daylight Hours

Daylight varies from 11.6 hours in June (winter) to 12.6 hours in December (summer), which is a difference of 1 hours.

Shortest Days

June
11.6h
Average Sunrise:06:31
Average Sunset:18:09
Plan daytime activities for midday when light is best. Early sunsets mean evening plans should account for darkness.

Longest Days

December
12.6h
Average Sunrise:05:57
Average Sunset:18:33
Extended daylight perfect for evening activities and late dining. You can fit more sightseeing into each day.

Wind & Humidity Overview

Wind Conditions

Average wind speed
Windiest months:
July (6 km/h) August (6 km/h) September (6 km/h)
Packing tip: Conditions are generally calm, but a light layer is always handy.

Humidity Levels

Average humidity
86%
Most humid:
February (92%)
Least humid:
September (79%)
Packing tip: Choose breathable, natural fabrics like cotton or linen for comfort in humid conditions.

Seasonal Overview

Southern Hemisphere seasons shape the weather patterns throughout the year. Here's what to expect in each season:

Summer

January, February, December
Avg High 27°C
Avg Low 21°C
Avg Rain 461 mm
Warm and pleasant; perfect for travel

Autumn

March, April, May
Avg High 27°C
Avg Low 21°C
Avg Rain 292 mm
Wet season begins; bring rain gear

Winter

June, July, August
Avg High 27°C
Avg Low 20°C
Avg Rain 68 mm
Mild winter; light layers recommended

Spring

September, October, November
Avg High 28°C
Avg Low 21°C
Avg Rain 202 mm
Warming trend with frequent showers; pack waterproofs

Monthly Details

Click any month for detailed weather information and packing advice.

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Frequently Asked Questions

What is the best month to visit Bali?

The best months to visit Bali depend on your preferences. For warm weather, October is typically the warmest month. For dry conditions, August, July, September tend to have the least rainfall. Consider your priorities—whether you prefer warmer temperatures, drier weather, or longer daylight hours.

When is Bali warmest?

October is typically the warmest month in Bali, with average high temperatures reaching around 29°C (84°F). This is peak summer weather, ideal for outdoor activities and sightseeing.

When is Bali coldest?

August is usually the coldest month, with average low temperatures dropping to around 19°C (66°F). Pack warm layers if visiting during this time, especially for evening activities.

When does Bali get the most rain?

January typically sees the most rainfall in Bali, averaging around 472mm (18.6 inches). It's wise to pack waterproof layers and have some indoor backup plans if you're visiting during this month.

What is the driest month in Bali?

August is typically the driest month, with average rainfall of just 39mm (1.5 inches). This makes it an excellent time for outdoor exploration and activities with minimal risk of rain disruption.

How much does the temperature vary in Bali throughout the year?

Temperatures in Bali range from average lows of 21°C (69°F) to highs of 27°C (81°F). This variation means you'll want to pack differently depending on when you visit—layers are key for adapting to the seasonal changes.

Do I need sun protection when visiting Bali?

Yes, sun protection is important in Bali. UV levels can reach 10 during peak months, which is considered very high. Pack sunscreen (SPF 30+), sunglasses, and a hat, especially if you'll be outdoors for extended periods.

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