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Khanom Weather in May
During May, Khanom experiences very high daytime temperatures of 32°C (90°F) and cooler nights around 27°C (81°F). Expect quite a bit of rainfall. Around 138 mm (5.4 in) is typical.
Rainfall in Khanom in May
Typically, you can expect about 17 days of rain this month, with 138 mm (5.4 in) on average. Wet weather is a regular and significant part of this month. Frequent days of rain combined with high totals means proper waterproofs are worth packing.
Temperature in Khanom in May
Temperatures in Khanom in May top out at 32°C (90°F) and drop to 27°C (81°F) overnight. Sunshine and humidity can make it feel even warmer than the raw temperature suggests. Nights remain warm at around 27°C (81°F). For a more comfortable sleep, a cold shower before bed and a fan or air conditioning can make a big difference.
Sunshine in Khanom in May
Expect a lot of sunshine this month, with about 193 hours of sun. These sunny conditions add to the overall experience.Our weather planner can help you find worldwide destinations with pleasant weather during this period. January typically offers the best weather for Khanom.
Khanom Temperature in May
Min Temperature
27°C (81°F)
Max Temperature
32°C (90°F)
Chance of Rain
57%
Precipitation
138 mm (5.4 in)
Rainy days
17 days
Humidity
80% *
Sunshine
193 hours *
Percentage Sunshine
*
* Data from: Koh Samui, Thailand (36 KM, 22 Miles).
Khanom Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Khanom - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Khanom typically stay consistent throughout May, with daily highs averaging around 32°C (90°F). Nights are warm, with lows around 26°C (79°F).
Average temperatures in May
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather records for Khanom in May
Browse day-by-day weather records for Khanom spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Khanom historical weather extremes in May
According to our 50 years of weather records for Khanom, the following extremes were recorded between 1976 and 2026.
- On May 8, 1998, temperatures climbed to 40°C (104°F), marking the warmest May day on record.
- The lowest daytime temperature in May was 28°C (82°F), recorded on May 17, 2009.
- The coldest night in May in Khanom was on May 7, 1981, with a minimum of 22°C (72°F).
Best Places in Thailand in May
Find out more about the weather in Thailand and which places have the best travel conditions in this month. See all of Thailand in May →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Khanom in May
Warm temperatures in May make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Prepare for significant rainfall with proper waterproof clothing and shoes. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.
What To Do in Khanom in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming7/10 -
Cycling7/10 -
Walking7/10 -
Camping7/10 -
Outdoor sports7/10
Khanom 3-Day Forecast
More climate data for Khanom
Temperature Rainfall Sunshine Humidity
See the full Khanom climate overview or explore weather in Thailand.
Popular in May
Where to go in May - average daytime high across popular destinations.
Bangkok
36°C (97°F) Chiang Mai
36°C (97°F) Jomtien Beach
33°C (91°F) Hua Hin33°C (91°F) Ao Nang Beach31°C (88°F) Koh Samui31°C (88°F) Ko Lanta31°C (88°F) Patong Beach30°C (86°F) Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
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