Warmest month
- Koh Samui
- May · 28.93 °C
- Shanghai
- August · 28.29 °C
Koh Samui (Thailand) vs Shanghai (China): Temperature, Rainfall and Sunshine
Reference period: Koh Samui 2013–2023 · Shanghai 2013–2023
Koh Samui (Thailand) has a higher monthly mean temperature than Shanghai (China) in every month of the year.
Key monthly differences
Coolest month
- Koh Samui
- January · 26.49 °C
- Shanghai
- January · 5.26 °C
Driest month
- Koh Samui
- March · 1.12 mm/day
- Shanghai
- December · 1.38 mm/day
Sunniest month
- Koh Samui
- March · 10.87 hours/day
- Shanghai
- August · 9.58 hours/day
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Climate comparison questions
When are the temperatures most similar and most different?
The smallest difference in monthly mean temperature is 0.02 °C (August); the largest is 21.23 °C (January).
How much do temperatures vary across the year?
The difference between the warmest and coolest monthly means is 2.44 °C in Koh Samui (Thailand) and 23.02 °C in Shanghai (China). This describes seasonal variation, not the range between daytime highs and nighttime lows.
Which location has more rainfall?
Koh Samui (Thailand) has a higher daily rainfall average in 5 months and Shanghai (China) in 7; 0 months are equal at the displayed precision. Rainfall amounts do not tell us how many days it rains.
Which location has more sunshine?
Koh Samui (Thailand) has more average sunshine hours per day in 11 months and Shanghai (China) in 1; 0 months are equal at the displayed precision. Sunshine duration is different from daylight duration.
Climate data notes
Show data and calculation
Daily values are averaged separately for each calendar month over the saved reference period. Temperatures are daily means, not daytime highs. Rainfall is an average daily amount, not a monthly total; sunshine is average hours per day. These historical averages are not a weather forecast. Each location’s reference period is listed below and may differ.
Mean of the 12 monthly averages
Monthly climate data
Difference: Shanghai (China) minus Koh Samui (Thailand)
Temperature °C
| Month | Koh Samui | Shanghai | +/- |
|---|---|---|---|
| Jan | 26.49 | 5.26 | −21.23 |
| Feb | 26.83 | 6.44 | −20.40 |
| Mar | 27.86 | 11.03 | −16.82 |
| Apr | 28.74 | 15.74 | −13.00 |
| May | 28.93 | 20.74 | −8.19 |
| Jun | 28.70 | 24.23 | −4.47 |
| Jul | 28.39 | 28.23 | −0.15 |
| Aug | 28.31 | 28.29 | −0.02 |
| Sep | 27.72 | 24.04 | −3.68 |
| Oct | 27.09 | 18.91 | −8.18 |
| Nov | 26.86 | 13.71 | −13.15 |
| Dec | 26.56 | 6.64 | −19.93 |
| Annual mean | 27.71 | 16.94 | −10.77 |
Average sunshine (hours/day)
| Month | Koh Samui | Shanghai | +/- |
|---|---|---|---|
| Jan | 10.15 | 5.82 | −4.33 |
| Feb | 10.66 | 5.73 | −4.93 |
| Mar | 10.87 | 6.75 | −4.12 |
| Apr | 10.43 | 7.97 | −2.47 |
| May | 10.35 | 7.64 | −2.71 |
| Jun | 9.72 | 6.55 | −3.18 |
| Jul | 9.15 | 8.73 | −0.42 |
| Aug | 9.51 | 9.58 | +0.07 |
| Sep | 8.59 | 7.71 | −0.88 |
| Oct | 8.61 | 7.16 | −1.45 |
| Nov | 8.31 | 6.10 | −2.21 |
| Dec | 9.33 | 6.33 | −3.00 |
| Annual mean | 9.64 | 7.17 | −2.47 |
Average daily rainfall (mm/day)
| Month | Koh Samui | Shanghai | +/- |
|---|---|---|---|
| Jan | 3.75 | 1.91 | −1.84 |
| Feb | 1.63 | 2.35 | +0.71 |
| Mar | 1.12 | 2.67 | +1.55 |
| Apr | 4.22 | 3.16 | −1.05 |
| May | 3.69 | 4.32 | +0.63 |
| Jun | 2.77 | 8.37 | +5.60 |
| Jul | 3.26 | 6.82 | +3.57 |
| Aug | 2.98 | 5.10 | +2.12 |
| Sep | 4.73 | 4.86 | +0.13 |
| Oct | 7.19 | 2.08 | −5.10 |
| Nov | 9.33 | 2.11 | −7.21 |
| Dec | 6.12 | 1.38 | −4.74 |
| Annual mean | 4.23 | 3.76 | −0.47 |
Snow (mm)
| Month | Koh Samui | Shanghai | +/- |
|---|---|---|---|
| Jan | 0.00 | 0.69 | +0.69 |
| Feb | 0.00 | 0.99 | +0.99 |
| Mar | 0.00 | 0.01 | +0.01 |
| Apr | 0.00 | 0.00 | 0.00 |
| May | 0.00 | 0.00 | 0.00 |
| Jun | 0.00 | 0.00 | 0.00 |
| Jul | 0.00 | 0.00 | 0.00 |
| Aug | 0.00 | 0.00 | 0.00 |
| Sep | 0.00 | 0.00 | 0.00 |
| Oct | 0.00 | 0.00 | 0.00 |
| Nov | 0.00 | 0.01 | +0.01 |
| Dec | 0.00 | 0.40 | +0.40 |
| Annual mean | 0.00 | 0.17 | +0.17 |
