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Weather in Ko Samui for July 2026

Your guide to Ko Samui weather in July - trends and predictions

    Temperatures

  • In general, the average temperature in Ko Samui at the beginning of July is 29.3 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 30 °C by the end of July.

    • Rain 🌧️

  • Ko Samui experiences heavy rainfall in July, with over 20 rainy days and an average total precipitation 138.4 mm.

    • More

  • Is July a good time to visit Ko Samui? check out the best time to travel to Ko Samui page.

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
1
Dry days
Average rainy days
30
Rainy days
Average snowy days
0
Snow days
Average temperatures
29°/27°
Temperatures
Average wind speed
24 km/h
Avg max wind
Average humidity
74 %
Avg humidity

Ko Samui Weather July

Move between months or click on a day
June
August
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Patchy rain possible
29°
2
Patchy rain possible
29°
3
Patchy rain possible
29°
4
Light rain shower
29°
5
Patchy rain possible
29°
6
Patchy rain possible
30°
7
Patchy rain possible
30°
8
Moderate or heavy rain shower
29°
9
Moderate or heavy rain shower
28°
10
Light rain shower
28°
11
Light rain shower
29°
12
Moderate or heavy rain shower
29°
13
Patchy rain possible
29°
14
Cloudy
29°
15
Moderate rain at times
29°
16
Light rain shower
29°
17
Partly cloudy
29°
18
Light rain shower
30°
19
Light rain shower
29°
20
Patchy rain possible
30°
21
Cloudy
29°
22
Moderate or heavy rain shower
30°
23
Patchy rain possible
30°
24
Patchy rain possible
30°
25
Cloudy
30°
26
Overcast
30°
27
Patchy rain possible
30°
28
Patchy rain possible
30°
29
Patchy rain possible
30°
30
Moderate rain at times
30°
31
Moderate or heavy rain shower
30°

Temperatures trend during July in Ko Samui

See the weather trend as well as the moving average line

July weather in Ko Samui day by day

Click on a date for more information
June August
Date Weather Temperatures Rain UV More
1 Jul. Patchy rain possible
Patchy rain possible
 29° /26° 8 mm 6
2 Jul. Patchy rain possible
Patchy rain possible
 29° /27° 1.9 mm 6
3 Jul. Patchy rain possible
Patchy rain possible
 29° /27° 1.9 mm 6
4 Jul. Light rain shower
Light rain shower
 29° /27° 7 mm 6
5 Jul. Patchy rain possible
Patchy rain possible
 29° /27° 2.5 mm 6
6 Jul. Patchy rain possible
Patchy rain possible
 30° /27° 2.2 mm 6
7 Jul. Patchy rain possible
Patchy rain possible
 30° /27° 2 mm 6
8 Jul. Moderate or heavy rain shower
Moderate or heavy rain shower
 29° /26° 9.5 mm 6
9 Jul. Moderate or heavy rain shower
Moderate or heavy rain shower
 28° /26° 8.7 mm 6
10 Jul. Light rain shower
Light rain shower
 28° /26° 8.1 mm 6
11 Jul. Light rain shower
Light rain shower
 29° /26° 7.2 mm 6
12 Jul. Moderate or heavy rain shower
Moderate or heavy rain shower
 29° /26° 5.3 mm 6
13 Jul. Patchy rain possible
Patchy rain possible
 29° /26° 1.5 mm 6
14 Jul. Cloudy
Cloudy
 29° /26° 1.8 mm 6
15 Jul. Moderate rain at times
Moderate rain at times
 29° /26° 2.5 mm 6
16 Jul. Light rain shower
Light rain shower
 29° /26° 5.9 mm 6
17 Jul. Partly cloudy
Partly cloudy
 29° /27° 3.5 mm 6
18 Jul. Light rain shower
Light rain shower
 30° /27° 2.7 mm 7
19 Jul. Light rain shower
Light rain shower
 29° /27° 2.3 mm 6
20 Jul. Patchy rain possible
Patchy rain possible
 30° /27° 7.1 mm 6
21 Jul. Cloudy
Cloudy
 29° /27° 2.5 mm 6
22 Jul. Moderate or heavy rain shower
Moderate or heavy rain shower
 30° /27° 4.8 mm 7
23 Jul. Patchy rain possible
Patchy rain possible
 30° /27° 3.5 mm 6
24 Jul. Patchy rain possible
Patchy rain possible
 30° /27° 0.9 mm 6
25 Jul. Cloudy
Cloudy
 30° /27° 1.3 mm 6
26 Jul. Overcast
Overcast
 30° /27° 2.4 mm 7
27 Jul. Patchy rain possible
Patchy rain possible
 30° /27° 5.3 mm 6
28 Jul. Patchy rain possible
Patchy rain possible
 30° /27° 3.4 mm 6
29 Jul. Patchy rain possible
Patchy rain possible
 30° /27° 3.9 mm 6
30 Jul. Moderate rain at times
Moderate rain at times
 30° /26° 4.5 mm 7
31 Jul. Moderate or heavy rain shower
Moderate or heavy rain shower
 30° /27° 3.2 mm 7
Next
Important Notice
Our weather forecast for Ko Samui in July is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Ko Samui forecast closer to your planned date for the most up-to-date weather information.
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Ko Samui in July - FAQ

What are the expected maximum and minimum temperatures in Ko Samui during July?
During July, expect a variety of temperatures with highs around 29° and lows near 27°, suitable for diverse activities and preferences.
How much rainfall should be expected in Ko Samui during July?
Significant rainfall exceeding 138.4 mm is expected in Ko Samui during July, occurring over more than 30 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Ko Samui during July?
The average wind speed in Ko Samui during July is 24 km/h, suggesting breezy to windy conditions, depending on your activities.

What to pack to Ko Samui in July?

As you prepare for your trip to Ko Samui in July, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Ko Samui, during July, is comfortable and enjoyable, regardless of the weather conditions.

  • Clothing
    • Lightweight Clothing: T-shirts, blouses, shorts, skirts
    • Rain Gear: Lightweight, waterproof clothing
  • Footwear
    • Waterproof Shoes
    • Sandals/Flip-flops: Comfortable for warm climates
  • Accessories
    • Sunglasses: For sun protection
    • Sun Hats: Wide-brimmed hats for sun protection in warm weather
    • Umbrellas/Raincoats: For rainy days
  • Personal Items
    • Sunscreen: High SPF for sunny destinations
    • Lip Balm with SPF: To protect against chapped lips

July rainfall patterns in Ko Samui

Explore the daily rainfall trends and prepare for Ko Samuis July weather 💧

UV exposure in Ko Samui during July

Stay informed about UV levels for safe outdoor activities throughout the month of July ☀️

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Get accurate weather forecasts for Ko Samui, located at latitude 9.536 and longitude 99.936. Stay updated with localized weather information tailored for Ko Samui.

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