The best times to visit Kumai for ideal weather are

June 18th to July 8th


September 17th to October 7th

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



Other Kumai Travel Info

Weather in Kumai


Average temperatures in Kumai vary barely at all. Considering humidity, temperatures feel hot all year with a chance of rain throughout most of the year. The area is far less temperate than some — in the 2nd 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 Kumai, the hottest months are May, June, and then October. See average monthly temperatures below. The warmest time of year is generally early May where highs are regularly around 91.6°F (33.1°C) with temperatures rarely dropping below 74.3°F (23.5°C) at night.

Kumai Temperatures (Fahrenheit)


Kumai 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.

Kumai Perceived Temperature (F)


Kumai Perceived Temperature (C)



Average Kumai 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 89.7 79.8 73.6
Feb 90.3 80 73.5
Mar 90.3 79.6 73.5
Apr 90.4 79.9 73.7
May 90.7 80.6 74
Jun 90 80.1 73.4
Jul 88.7 79.1 72.3
Aug 89.2 79.3 72.1
Sep 90.3 79.9 72.5
Oct 90.8 80.1 73
Nov 90.4 79.7 73.7
Dec 89.4 79.1 73.7

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 32.1 26.6 23.1
Feb 32.4 26.7 23.1
Mar 32.4 26.4 23.1
Apr 32.4 26.6 23.2
May 32.6 27 23.3
Jun 32.2 26.7 23
Jul 31.5 26.2 22.4
Aug 31.8 26.3 22.3
Sep 32.4 26.6 22.5
Oct 32.7 26.7 22.8
Nov 32.4 26.5 23.2
Dec 31.9 26.2 23.2



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Kumai are September, August, and then July. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around late September. For example, on the week of September 24th there is 1 day of precipitation on average. By contrast, it’s most likely to rain or snow in early to mid December with an average of 4 days of significant precipitation the week of December 10th.

When can you find snow in Kumai? 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 Kumai.

Days with precipitation

Snow on the Ground

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

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 32% 0 5.3
Feb 30% 0 6.1
Mar 43% 0 10.1
Apr 44% 0 9.8
May 25% 0 6.5
Jun 25% 0 4.4
Jul 22% 0 4.4
Aug 21% 0 4.5
Sep 17% 0 3.3
Oct 31% 0 5.3
Nov 45% 0 9.8
Dec 54% 0 12.6

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 32 0 13.5
Feb 30 0 15.5
Mar 43 0 25.7
Apr 44 0 24.9
May 25 0 16.5
Jun 25 0 11.2
Jul 22 0 11.2
Aug 21 0 11.4
Sep 17 0 8.4
Oct 31 0 13.5
Nov 45 0 24.9
Dec 54 0 32


Humidity and Wind

Kumai has some extremely humid months, and high humidity throughout the year. The least humid month is September (82.8% relative humidity), and the most humid month is December (88%).

Wind in Kumai is usually extremely calm. The windiest month is September, followed by August and July. September’s average wind speed of around 3.3 knots (3.7 MPH or 6 KPH) is considered “light air.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in mid August where average top sustained speeds reach 10.2 knots, which is considered a gentle breeze.

Relative Humidity (%)

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

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 2.6 Barely noticeable 7.3 Gentle breeze
Feb 2.3 Barely noticeable 7.3 Gentle breeze
Mar 2.1 Barely noticeable 6.6 Gentle breeze
Apr 2 Barely noticeable 6.8 Light breeze
May 2.3 Barely noticeable 7.1 Gentle breeze
Jun 2.5 Barely noticeable 7.4 Gentle breeze
Jul 2.8 Barely noticeable 8.2 Gentle breeze
Aug 3.2 Barely noticeable 8.6 Gentle breeze
Sep 3.3 Barely noticeable 8.9 Gentle breeze
Oct 2.5 Barely noticeable 7.6 Gentle breeze
Nov 2.1 Barely noticeable 6.8 Gentle breeze
Dec 2.3 Barely noticeable 6.9 Light breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 85.4%
Feb 84.8%
Mar 86.6%
Apr 87.2%
May 86%
Jun 85.7%
Jul 85.3%
Aug 83.6%
Sep 82.8%
Oct 84.5%
Nov 87%
Dec 88%


Is it Safe to Travel to Kumai?

Our best data indicates this area is somewhat safe, but with extra warnings in a few regions. As of Oct 07, 2019 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 Sep 20, 2019.


The Busiest and Least Crowded Months

The busiest month for tourism in Kumai, Indonesia is March, followed by December and July. 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 Kumai in June. 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 46.3 in June means 46.3% of the tourists vs. March.



Overall Kumai Travel Experience by Season

Fall (March through May)

Humidity and temperatures combine to make this season feel warm. Highs range from 91.1°F (32.8°C) and 89.8°F (32.1°C) with similar temperatures in the later months. Rain is very common with 8 to 13 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 6 to 7 days of precipitation per month. June – August is fairly slow season for tourism in Kumai, so lodging and other accommodations may cost slightly less.

Spring (September through November)

Spring daily highs range from 91.6°F (33.1°C) and 89.1°F (31.7°C), which will feel very nice given the humidity and wind. It rains or snows a significant amount: 5 to 13 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 Kumai to be enjoyable for warm weather travelers. The average high during this season is between 91°F (32.8°C) and 89°F (31.7°C). On average, it rains or snows a great amount: 8 to 17 times per month. These times of year are the second busiest with tourists.


Best Times to TravelIndonesia › Kumai, Indonesia