Railay Beach Temperature by Month

The average annual maximum temperature in Railay Beach, Krabi Province, Thailand is 31°C (88°F), with little variation between seasons. This page covers monthly averages, day-night differences, and how Railay Beach compares to cities worldwide.

The temperature in Railay Beach changes very little across the seasons, maintaining a similar climate throughout the year. Maximum daytime temperatures range from a very warm 30°C (86°F) in September to a very warm 32°C (90°F) in March. Nighttime lows range from 26°C (79°F) in March to 25°C (77°F) in September.

The chart below illustrates the average maximum day and minimum night temperatures in Railay Beach by month:

Low temperatures are most often recorded between 4 AM and 6 AM, while highs typically occur around 3 PM. March, the city's warmest month, sees 202 hours of sunshine.

The chart below shows the average temperature throughout the year:

Railay Beach's average annual maximum temperature is 31°C (88°F). To put that in context, here's how it compares to a few well-known destinations:

Lisbon, Portugal averages 21°C (70°F) annually, warm summers, mild winters, and rain mainly in the cooler months.

Zermatt, Switzerland averages just 4°C (39°F) annually due to its altitude, with very cold winters and cool summers even at its warmest.

Boston, USA averages 16°C (61°F) annually, with four distinct seasons and cold winters that rival northern Europe.

Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.

Temperature alone doesn't tell the whole story, humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.

In Railay Beach, September is the coolest month, with average highs of 30°C (86°F) and humidity around 88%, considered very high. In March, the warmest month, temperatures average 32°C (90°F) with 79% humidity, conditions that feel high. For a full picture, see our humidity page.

Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.

The readings come from a range of sources, land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.

Global average temperatures have risen by around 1.2°C since the pre-industrial era, and the effects are visible across many regions. Winters are milder on average, with fewer frost days and less snow in many parts of the world. Heatwaves are more frequent and more intense, and Europe's summers of 2018, 2019, and 2020 all set records.

Summers are also getting drier in some areas, while winter rainfall has increased in others. This contributies to higher river levels and more flooding. In many countries, spring arrives earlier and autumn lasts longer. It has knock-on effects for wildlife, agriculture, and local ecosystems.

For more on Railay Beach's weather, including monthly rainfall, sunshine hours, and humidity, visit our Railay Beach climate page.