Ko Samui
Thailand · 50K
Lifestyle Calendar
When this city supports your activity — and when it fights you.
Ko Samui
Thailand
Dinner Outside6 – 10 pm
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Verdict
Jan: 84% viability
84Feb: 80% viability
80Mar: 92% viability
92Apr: 80% viability
80May: 64% viability
64Jun: 64% viability
64Jul: 57% viability
57Aug: 62% viability
62Sep: 50% viability
50Oct: 40% viability
40Nov: 50% viability
50Dec: 65% viability
65Humid
Friction Breakdown
Heat
Cold
Wind
Rain
Humid
Air Q.
Best months: Jan–AprChallenging: None
ComfortableModerateUncomfortable
Based on 2014–2024 hourly climate data · Updated Mar 2025Confidence: ●●●
Air Quality Profile
Annual and monthly PM2.5 levels against WHO guidelines.
Ko Samui
Thailand
Annual Average
FairWHO annual classification
13.6µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
1818 µg/m³ — Moderate
1111 µg/m³ — Fair
1313 µg/m³ — Fair
1515 µg/m³ — Moderate
1414 µg/m³ — Fair
1212 µg/m³ — Fair
1212 µg/m³ — Fair
1313 µg/m³ — Fair
1111 µg/m³ — Fair
1616 µg/m³ — Moderate
1414 µg/m³ — Fair
1212 µg/m³ — Fair
Jan
Feb
Mar
Apr
May
Jun
1818 µg/m³ — Moderate
1111 µg/m³ — Fair
1313 µg/m³ — Fair
1515 µg/m³ — Moderate
1414 µg/m³ — Fair
1212 µg/m³ — Fair
Jul
Aug
Sep
Oct
Nov
Dec
1212 µg/m³ — Fair
1313 µg/m³ — Fair
1111 µg/m³ — Fair
1616 µg/m³ — Moderate
1414 µg/m³ — Fair
1212 µg/m³ — Fair
Best months: Feb, Jun, SepWorst months: Jan, Apr, Oct
Fair10–15 µg/m³Moderate15–25 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholdsConfidence: ●●●
Sun & UV Profile
Monthly sunshine, sky clarity, and UV exposure patterns.
Ko Samui
Thailand
Annual Summary
Sunshine
2,451hrs/yr
Clear sky
37%
Worst month
3.7hrs/day
Vit D months
11.6months
UV 8+ days
260days/yr
UV 11+ days
96days/yr
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Daily hrs
9.89.8 hrs — Sunny
1010 hrs — Very Sunny
1010 hrs — Very Sunny
1010 hrs — Sunny
9.89.8 hrs — Sunny
1010 hrs — Sunny
9.09.0 hrs — Sunny
9.79.7 hrs — Sunny
9.09.0 hrs — Sunny
8.08.0 hrs — Good
8.08.0 hrs — Good
9.29.2 hrs — Sunny
Jan
Feb
Mar
Apr
May
Jun
9.89.8 hrs — Sunny
1010 hrs — Very Sunny
1010 hrs — Very Sunny
1010 hrs — Sunny
9.89.8 hrs — Sunny
1010 hrs — Sunny
Jul
Aug
Sep
Oct
Nov
Dec
9.09.0 hrs — Sunny
9.79.7 hrs — Sunny
9.09.0 hrs — Sunny
8.08.0 hrs — Good
8.08.0 hrs — Good
9.29.2 hrs — Sunny
Best months: Feb–AprWorst months: Sep–Nov
GoodSunnyVery Sunny
Based on ERA5 sunshine data · CAMS UV indexConfidence: ●●●