September could be a good time to visit Khon Kaen, as the weather is generally fine. The average high temperature is around +90°F, and there are typically 0 sunny days in September. However, expect about 22 rainy days, and total monthly rainfall of approximately 234 mm. The weather is changeable so pack for every eventuality. Search flightsin one click on Avionero.
Good to know:
September is usually the wettest month of the year in Khon Kaen;
Average weather
☀️
+90°F
Avg. max. temperature
+70°F
Min.
+99°F
Max.
234 mm
Total precipitation
82%
Avg. humidity
1 m/s
Avg. wind
0 ☀️
Sunny Days
2 ⛅️
Cloudy
22 🌦
Rainy
Our opinion: Khon Kaen has OK weather in September.
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Average temperature in Khon Kaen in September
Here are the expected maximum, average and minimum temperatures in Khon Kaen for September based on the historical data.
Last Year
Historical Data
The expected average maximum temperature in September is +88°F with a maximum of +97°F and a minimum of +77°F.
The average maximum temperature goes down 27% by the end of the month, compared with the beginning of the month, from +93°F to +88°F.
Is Khon Kaen warm or cold in September?
Khon Kaen is typically hot in September.
Maximum temperatures go up compared to the previous month from +90°F to +90°F. The minimum temperature also goes up from +77°F to +77°F.
Make sure that you pack your summer linen and swimming costumes; it’s probably going to be hot.
Take a look at how September is compared to other months in Khon Kaen:
Climate in Khon Kaen in September
Khon Kaen weather looks like this, on average, in September and the surrounding months.
August
September
October
Avg. temperature
+90°F
+90°F
+88°F
Min. temperature
+73°F
+70°F
+61°F
Max. temperature
+99°F
+99°F
+97°F
Rainfall
192 mm
234 mm
108 mm
Wind
1 m/s
1 m/s
1 m/s
Humidity
79%
82%
78%
Air pressure
1005 HPa
1007 HPa
1010 HPa
Sunny days
0
0
5
Cloudy days
2
2
7
Rainy days
24
22
17
Snowy days
0
0
0
September weather is still as ok as in August.The temperature levels stay the same in the area of +90°F for average maximum temperature during the day.Prepare for more rain. Average rainfall goes from 192 mm to 234 mm.Humidity rises from 79% to 82%.The average wind speed doesn’t change much during September, staying around 1 m/s.The amount of sunny days stay about the same, averaging 0 sunny days during the month.
October brings much the same weather, it remains ok.
Wind speed in Khon Kaen in September based on historical data.
Last Year
Historical Data
The average wind speed is 1 m/s getting up to 3 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Khon Kaen is gradually increasing during September, going from 1 m/s to 1 m/s over the course of the month.
Rain
Amount of rainfall in mm during September in Khon Kaen based on historical data.
Last Year
Historical Data
Total precipitation in September is about 319 mm, with a 87% chance of rain on a typical day. The maximum amount of rainfall per day is around 39 mm, which is moderate rain.September is a pretty wet month with over 26 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
September is one of the rainiest months in Khon Kaen, here is a comparison with other months, total mm:
Khon Kaen wettest month is September, where a typical day has a 73% chance of precipitation and 234 mm of rainfall per day. December, on the other hand, is the driest month with a mere 6% chance of precipitation and 3 mm of rainfall per day.
How was the weather last September in Khon Kaen?
This is the weather in Khon Kaen in September 2024:
1 September
☁️
+93°F
2 September
☁️
+94°F
3 September
☁️
+96°F
4 September
🌧️
+93°F
5 September
🌧️
+90°F
6 September
🌧️
+84°F
7 September
🌧️
+90°F
8 September
🌧️
+87°F
9 September
🌧️
+90°F
10 September
🌧️
+87°F
11 September
🌧️
+90°F
12 September
☁️
+84°F
13 September
☁️
+88°F
14 September
🌧️
+89°F
15 September
🌧️
+83°F
16 September
🌧️
+87°F
17 September
🌧️
+86°F
18 September
🌧️
+87°F
19 September
☁️
+89°F
20 September
☀️
+93°F
21 September
☀️
+91°F
22 September
☀️
+90°F
23 September
☀️
+93°F
24 September
☁️
+94°F
25 September
🌧️
+93°F
26 September
🌧️
+78°F
27 September
🌧️
+82°F
28 September
🌧️
+84°F
29 September
🌧️
+88°F
30 September
☁️
+89°F
In September 2024 Khon Kaen had 4 sunny days, 8 cloudy days, and 18 rainy days. The average maximum temperature was +88°F, with an absolute maximum of +97°F and a minimum of +77°F. The average humidity was 85%, with a maximum of 100% and a minimum of 49%. The average wind speed was 1 m/s, with a maximum of 6 m/s and a minimum of 0 m/s.
Are you planning a trip in September?
Climate Change Over the Years
This is how Khon Kaen climate has changed over the last 43 years.
The climate in Khon Kaen in September has not changed that much over the last 43 years.
The average temperature was the lowest in 2011 (+89°F) and the highest in 2019 (+94°F). The driest year was 2014 with only 843 mm of rainfall, and the wettest year was 2000 with 1396 mm.
FAQ
Frequently asked questions about the weather in Khon Kaen in September:
Is September a good time to visit Khon Kaen?
It’s always a good time to visit Khon Kaen, but the weather is changeable in September, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.
Can you sunbathe in Khon Kaen in September?
Absolutely, September is hot in Khon Kaen. Plan on beach and pool time, and ensure that you pack light and breathable options to stay comfortable.
Is Khon Kaen rainy in September?
Khon Kaen is often rainy in September. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.
Is it sunny in Khon Kaen in September?
Usually, it’s not very sunny in Khon Kaen in September, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.
Other cities in Thailand
Check out the weather for other cities in Thailand.
For this page, we’ve looked at the typical weather in Khon Kaen, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
