The best times to visit Sumbawa for ideal weather are

May 21st to September 30th

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.



Other Sumbawa Travel Info

Weather in Sumbawa


Average temperatures in Sumbawa vary barely at all. Considering humidity, temperatures feel hot all year with a fair chance of precipitation about half of the year. The area is less temperate than some — in the 17th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Sumbawa, the hottest months are November, October, and then September. See average monthly temperatures below. The warmest time of year is generally early November where highs are regularly around 94.9°F (34.9°C) with temperatures rarely dropping below 75.2°F (24°C) at night.

Sumbawa Temperatures (Fahrenheit)


Sumbawa Temperatures (Celsius)


“Feels-Like” Temperatures

The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.

Sumbawa Perceived Temperature (F)


Sumbawa Perceived Temperature (C)



Average Sumbawa Temperatures by Month

Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.

Show Fahrenheit

Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
Jan 87.2 80.2 74
Feb 87 80 74
Mar 87.9 80.3 73.8
Apr 90 81.1 73.8
May 90.4 81 73.4
Jun 89.9 79.9 71.3
Jul 89.5 78.9 69.7
Aug 90.8 79.7 69.3
Sep 93.4 81.5 71.5
Oct 94.4 82.9 73.7
Nov 93 83 75.1
Dec 89.1 81.1 74.7

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 30.7 26.8 23.3
Feb 30.6 26.7 23.3
Mar 31.1 26.8 23.2
Apr 32.2 27.3 23.2
May 32.4 27.2 23
Jun 32.2 26.6 21.8
Jul 31.9 26.1 20.9
Aug 32.7 26.5 20.7
Sep 34.1 27.5 21.9
Oct 34.7 28.3 23.2
Nov 33.9 28.3 23.9
Dec 31.7 27.3 23.7



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Sumbawa are August, June, and then September. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early to mid June. For example, on the week of June 11th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in late January and early February with an average of 4 days of significant precipitation the week of January 29th.

When can you find snow in Sumbawa? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.

Chance of Precipitation

The graph below shows the % chance of rainy and snowy days in Sumbawa.

Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Sumbawa (in).

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 30% 0 7
Feb 36% 0 6.3
Mar 29% 0 7.3
Apr 20% 0 4.1
May 10% 0 2.6
Jun 1% 0 0.1
Jul 3% 0 0.7
Aug 0% 0 0
Sep 2% 0 1.1
Oct 5% 0 0.8
Nov 20% 0 5.5
Dec 30% 0 6.8

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 30 0 17.8
Feb 36 0 16
Mar 29 0 18.5
Apr 20 0 10.4
May 10 0 6.6
Jun 1 0 0.3
Jul 3 0 1.8
Aug 0 0 0
Sep 2 0 2.8
Oct 5 0 2
Nov 20 0 14
Dec 30 0 17.3


Humidity and Wind

Sumbawa has some extremely humid months, with other comfortably humid months. The least humid month is September (58.3% relative humidity), and the most humid month is February (82.2%).

Wind in Sumbawa is usually calm. The windiest month is August, followed by July and September. August’s average wind speed of around 5.4 knots (6.2 MPH or 10 KPH) is considered “a light breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early October where average top sustained speeds reach 9.8 knots, which is considered a gentle breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Sumbawa.

Avg. Relative Humidity


The graph below shows wind speed (max and average) in knots.

Max Sustained Wind
Average Daily Wind

Average Wind Speeds

Show Wind Speeds

All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.

Month Avg. Wind Avg. Wind Feel Sustained High Wind High Wind Feel
Jan 3.5 Barely noticeable 8.7 Gentle breeze
Feb 3.7 Barely noticeable 8.8 Gentle breeze
Mar 3.5 Barely noticeable 8.1 Gentle breeze
Apr 3.3 Barely noticeable 7.1 Gentle breeze
May 4.1 Light breeze 7.5 Gentle breeze
Jun 4.8 Light breeze 8.6 Gentle breeze
Jul 5.3 Light breeze 9.3 Gentle breeze
Aug 5.4 Light breeze 9.3 Gentle breeze
Sep 5.1 Light breeze 9.5 Gentle breeze
Oct 4.8 Light breeze 9.6 Gentle breeze
Nov 4.1 Light breeze 8.9 Gentle breeze
Dec 3.3 Barely noticeable 7.9 Gentle breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 81.3%
Feb 82.2%
Mar 80.2%
Apr 76.3%
May 71.9%
Jun 66.8%
Jul 62.7%
Aug 58.5%
Sep 58.3%
Oct 62.5%
Nov 69.9%
Dec 78.6%


Is it Safe to Travel to Sumbawa?

Our best data indicates this area is somewhat safe, but with extra warnings in a few regions. As of Dec 04, 2023 there are travel warnings and regional advisories for Indonesia; exercise a high degree of caution and avoid some areas. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Nov 14, 2023.


The Busiest and Least Crowded Months

The busiest month for tourism in Sumbawa, Indonesia is March, followed by June and April. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Sumbawa in September. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month


Most Popular Months to Visit

Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 61.9 in September means 61.9% of the tourists vs. March.



Overall Sumbawa Travel Experience by Season

Fall (March through May)

Humidity and temperatures combine to make this season feel warm. Highs range from 90.6°F (32.6°C) and 86.8°F (30.4°C) with similar temperatures in the later months. Rain is somewhat common with 3 to 9 days of significant precipitation per month. Fall is the busiest for tourism, which makes it a good time for those looking for things to do.

Winter (June through August)

The middle-year months have very comfortable weather with high temperatures that are quite warm. These months see the least precipitation with 0 to 1 days of precipitation per month. June – August is the second busiest season for tourism in Sumbawa, so lodging and other accommodations may cost slightly more.

Spring (September through November)

Spring daily highs range from 94.9°F (34.9°C) and 91.6°F (33.1°C), which will feel very nice given the humidity and wind. It rains or snows a normal amount: 1 to 6 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.

Summer (December through February)

Weather is perfect this time of year in Sumbawa to be enjoyable for warm weather travelers. The average high during this season is between 90.5°F (32.5°C) and 86.5°F (30.3°C). On average, it rains or snows a fair amount: 9 to 10 times per month. These times of year are fairly slow with tourists.


Best Times to TravelIndonesia › Sumbawa, Indonesia