Temperature
Hot by day, warm at night.
89°Ftypical May high
Typical range
May climate
May in Railay Beach
Thailand · Southeast Asia
Humid air is the main limitation.
Wet but workable
Daytime high
89°F
Lows around 79°F
Rain
Rain most days
Sun
9.5 h/day
Air feel
Very humid
Sea temp
86°F
Very warm sea
When to visit
Month-by-month fit
Best
Precipitation
It rains on most days. About 27 wet days, more than in most months.
88%wet-day frequency
AmountWet-day chance
Sunshine
Cloudier spells limit sunshine.
9.7 hMay sunshine
Heat & humidity by month
Very humid air is a major factor this month.
99%May Heat feel
Humid airVery humid air
Hourly temperature pattern
In May, afternoons feel about 95° and nights feel near 90°.
WarmHotSwelteringNight hours
Clear sky
Overcast skies this month.
14%May Clear sky
Clear skyCloud
Wind pattern
Calm winds are typical in May.
5 mphMay Calm
Sea temperature
86°FMay sea temp
More detailIncludes daypart comfort
Typical May day
May late afternoons are around 85°F, and early evening stays near 84°F.
Avg temp Typical range
Morning84°F
Feels 94°F
Rain53%
Cloud84%
Humid airVery high
Sun intensityModerate
Midday88°F
Feels 97°F
Rain59%
Cloud85%
Humid airVery high
Sun intensityStrong
Late afternoon85°F
Feels 94°F
Rain55%
Cloud86%
Humid airVery high
Sun intensityModerate
Early evening83°F
Feels 93°F
Rain36%
Cloud85%
Humid airVery high
Sun intensityMinimal
Best windowData tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% | Sea°F |
|---|---|---|---|---|---|---|---|
| Jan | 88 | 76 | 2.4 | 8 | 10.3 | 79 | 83 |
| Feb | 90 | 76 | 2.0 | 7 | 10.8 | 76 | 83 |
| Mar | 91 | 77 | 4.3 | 14 | 10.6 | 79 | 85 |
| Apr | 90 | 78 | 7.9 | 23 | 10.5 | 84 | 86 |
| May | 89 | 79 | 11.0 | 27 | 9.7 | 86 | 86 |
| Jun | 87 | 78 | 10.1 | 25 | 9.5 | 86 | 85 |
| Jul | 87 | 78 | 10.5 | 25 | 9.2 | 87 | 85 |
| Aug | 87 | 78 | 10.7 | 25 | 9.2 | 87 | 85 |
| Sep | 86 | 78 | 12.4 | 26 | 8.5 | 87 | 84 |
| Oct | 87 | 77 | 14.0 | 28 | 8.1 | 88 | 84 |
| Nov | 87 | 77 | 10.7 | 24 | 8.3 | 87 | 84 |
| Dec | 87 | 76 | 5.1 | 14 | 9.3 | 84 | 83 |
Similar climates
Similar
Similar travel styleKrabiThailandSimilar travel styleBoracayPhilippinesSimilar travel stylePhuketThailandSimilar travel styleBaliIndonesia
Want a side-by-side climate view? Compare Railay Beach with Krabi.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Aug 22, 2026
Data & methodology