Warmest months (mean temperature) (°C)
- San Juan
- July: 27.74
- Singapore
- May: 27.80
San Juan (Puerto Rico) vs Singapore (Singapore): Temperature, Rainfall and Sunshine
Across the 12 monthly averages, San Juan (Puerto Rico) is warmer in 3 months and Singapore (Singapore) in 9; 0 months are equal at the displayed precision.
Key monthly differences
Coolest months (mean temperature) (°C)
- San Juan
- January: 24.53
- Singapore
- January: 26.21
Months with the lowest daily rainfall average (mm/day)
- San Juan
- January: 1.53
- Singapore
- February: 4.42
Months with the most daily sunshine (hours/day)
- San Juan
- June: 11.74
- Singapore
- March: 10.49
Compare the climate of two locations
Climate comparison questions
When are the temperatures most similar and most different?
The smallest difference in monthly mean temperature is 0.08 °C (June); the largest is 2.19 °C (March).
How much do temperatures vary across the year?
The difference between the warmest and coolest monthly means is 3.21 °C in San Juan (Puerto Rico) and 1.60 °C in Singapore (Singapore). This describes seasonal variation, not the range between daytime highs and nighttime lows.
Which location has more rainfall?
San Juan (Puerto Rico) has a higher daily rainfall average in 0 months and Singapore (Singapore) in 12; 0 months are equal at the displayed precision. Rainfall amounts do not tell us how many days it rains.
Which location has more sunshine?
San Juan (Puerto Rico) has more average sunshine hours per day in 12 months and Singapore (Singapore) in 0; 0 months are equal at the displayed precision. Sunshine duration is different from daylight duration.
Data and measurement guide
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.
- San Juan (Puerto Rico) — Reference period: 2013–2023
- Singapore (Singapore) — Reference period: 2013–2023
Monthly climate data
Difference: Singapore (Singapore) minus San Juan (Puerto Rico)
Temperature °C
| Month | San Juan | Singapore | +/- |
|---|---|---|---|
| Jan | 24.53 | 26.21 | 1.67 |
| Feb | 24.64 | 26.52 | 1.88 |
| Mar | 24.98 | 27.16 | 2.19 |
| Apr | 25.78 | 27.48 | 1.70 |
| May | 26.71 | 27.80 | 1.09 |
| Jun | 27.60 | 27.69 | 0.08 |
| Jul | 27.74 | 27.54 | -0.20 |
| Aug | 27.72 | 27.35 | -0.38 |
| Sep | 27.46 | 27.38 | -0.09 |
| Oct | 26.88 | 27.22 | 0.34 |
| Nov | 25.87 | 26.66 | 0.79 |
| Dec | 25.08 | 26.39 | 1.31 |
| ⌀ Month | 26.25 | 27.12 | 0.87 |
Average sunshine (hours/day)
| Month | San Juan | Singapore | +/- |
|---|---|---|---|
| Jan | 10.25 | 9.14 | -1.11 |
| Feb | 10.67 | 9.78 | -0.89 |
| Mar | 10.87 | 10.49 | -0.38 |
| Apr | 11.22 | 9.85 | -1.38 |
| May | 11.45 | 9.42 | -2.03 |
| Jun | 11.74 | 9.24 | -2.50 |
| Jul | 11.48 | 9.69 | -1.79 |
| Aug | 10.92 | 9.67 | -1.25 |
| Sep | 10.35 | 9.39 | -0.96 |
| Oct | 9.87 | 9.10 | -0.77 |
| Nov | 9.42 | 8.02 | -1.40 |
| Dec | 10.11 | 8.35 | -1.76 |
| ⌀ Month | 10.70 | 9.35 | -1.35 |
Average daily rainfall (mm/day)
| Month | San Juan | Singapore | +/- |
|---|---|---|---|
| Jan | 1.53 | 6.39 | 4.86 |
| Feb | 1.55 | 4.42 | 2.86 |
| Mar | 1.64 | 4.85 | 3.20 |
| Apr | 2.10 | 7.51 | 5.41 |
| May | 2.58 | 8.51 | 5.93 |
| Jun | 1.73 | 7.84 | 6.11 |
| Jul | 2.36 | 5.34 | 2.97 |
| Aug | 2.78 | 5.95 | 3.17 |
| Sep | 5.00 | 5.98 | 0.98 |
| Oct | 3.80 | 7.00 | 3.19 |
| Nov | 3.88 | 9.87 | 5.99 |
| Dec | 1.87 | 9.34 | 7.47 |
| ⌀ Month | 2.57 | 6.92 | 4.35 |
Snow (mm)
| Month | San Juan | Singapore | +/- |
|---|---|---|---|
| Jan | 0.00 | 0.00 | 0.00 |
| Feb | 0.00 | 0.00 | 0.00 |
| Mar | 0.00 | 0.00 | 0.00 |
| 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 | 0.00 | 0.00 |
| Dec | 0.00 | 0.00 | 0.00 |
| ⌀ Month | 0.00 | 0.00 | 0.00 |
