Siem Reap in May: Heat, First Rains and Travel Tips
What Siem Reap is like in May as heat remains strong and rainy season patterns begin to develop.
Updated 20 Oct 2026
What Siem Reap is like in May as heat remains strong and rainy season patterns begin to develop.
Transition month
May can combine serious heat with increasingly frequent rain.
Temple advantages
Cloud and occasional showers can soften the harshest conditions.
Rain planning
Carry light rain protection and avoid assuming a shower means the whole day is lost.
Photography
Changing skies can produce dramatic light around the temples.
My advice
Keep the schedule flexible and use weather windows rather than canceling too quickly.