Weather in Thailand in May

May in Thailand marks the beginning of the wet season but still offers warm temperatures. Travellers can expect a mix of sunshine and rain, leading to lush green landscapes. While outdoor activities are still possible, some planning might be required to navigate short, intense bursts of rain. Nonetheless, this month is known for its rich landscapes and vibrant natural events.

May Climate Overview

• Average Temperature: 25°C to 34°C
• Rainfall: 180mm
• Sunshine Hours: 7 hours per day
• Sea Temperature: 30°C
• Humidity: High around 75%
• Wind Speed: 10 km/h

What to Expect in May

Daytime Conditions

During the day, temperatures can rise to 34°C, making it feel quite warm. With high humidity, it can feel hotter, especially under the sun, so sun protection and hydration are essential.

Rainfall Patterns

Rainfalls are typically short and intense, often in the late afternoon or evening. While they can be heavy, the rains usually clear up quickly, leaving behind fresh and cooler air.

Evening Conditions

Evenings in May are generally cooler with temperatures dropping to 25°C. Nighttime humidity can remain high, but breezy conditions often make evenings comfortable for outdoor dining or walks.

Best Activities in Thailand in May

• Outdoor Activities: Explore national parks for hiking and wildlife watching, visit local markets, or enjoy cultural sightseeing during the cooler parts of the day.
• Seasonal Highlights: May is a time to witness vibrant greenery and floral blooms due to the onset of the rains, a unique spectacle in Thailand.
• Water-based or Nature-based Activities: Enjoy river rafting or visit waterfalls, as water levels rise making these attractions more exciting.

What to Pack for May

• Lightweight clothing suitable for warm daytime and cooler nights
• Sun protection including hat and sunscreen, and a small umbrella for rain showers
• Comfortable footwear for walking or hiking on varied terrains
• Reusable water bottle to stay hydrated