Last updated: August 27, 2025
In Sai Mun, Thailand, the average temperature in May hovers around 29°C (85°F), creating a warm and inviting atmosphere. Expect temperatures to range from a minimum of 17°C (64°F) to a scorching maximum of 39°C (103°F). With an average humidity of 71%, the air is often quite muggy. Be prepared for daily rain, as 152 mm (6.0 in) of precipitation typically falls over about 19 days throughout the month.
In May in Sai Mun, the average temperature is 29°C (85°F). Maximums can reach 39°C (103°F), and minimums can be as low as 17°C (64°F). Be prepared for warm weather and dress accordingly for both hot days and cooler evenings while traveling.
In Sai Mun in May, the precipitation amount is 152 mm (6.0 in) over a span of 19 days.
In Sai Mun in May humidity is 71%. With an average temperature of 29°C (85°F), this humidity feels like walking through a warm, damp blanket, making travel uncomfortable and sticky, and often leading to a desire for frequent breaks in shaded or air-conditioned spots.
In Sai Mun in May, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in Sai Mun.
UV Risk Categories
Weather in Sai Mun varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Sai Mun, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 24°C (76°F) | 3 mm (0.1 inches) | 56% | very high |
| February Weather | 25°C (78°F) | 9 mm (0.4 inches) | 50% | extreme |
| March Weather | 28°C (84°F) | 31 mm (1.2 inches) | 41% | extreme |
| April Weather | 29°C (85°F) | 61 mm (2.4 inches) | 44% | extreme |
| May Weather | 29°C (85°F) | 152 mm (6.0 inches) | 71% | extreme |
| June Weather | 29°C (85°F) | 166 mm (6.6 inches) | 83% | extreme |
| July Weather | 28°C (83°F) | 319 mm (12.5 inches) | 87% | extreme |
| August Weather | 28°C (83°F) | 262 mm (10.3 inches) | 90% | extreme |
| September Weather | 28°C (83°F) | 295 mm (11.6 inches) | 89% | extreme |
| October Weather | 27°C (81°F) | 166 mm (6.5 inches) | 83% | extreme |
| November Weather | 26°C (79°F) | 26 mm (1.0 inches) | 74% | very high |
| December Weather | 24°C (75°F) | 6 mm (0.3 inches) | 68% | very high |