Warmest month
- Colombo
- April · 27.60 °C
- New York City
- July · 24.54 °C
Colombo (Sri Lanka) vs New York City (USA): Temperature, Rainfall and Sunshine
Reference period: Colombo 2013–2023 · New York City 2013–2023
Colombo (Sri Lanka) has a higher monthly mean temperature than New York City (USA) in every month of the year.
Key monthly differences
Coolest month
- Colombo
- December · 25.77 °C
- New York City
- January · -0.23 °C
Driest month
- Colombo
- February · 2.25 mm/day
- New York City
- January · 2.14 mm/day
Sunniest month
- Colombo
- March · 10.49 hours/day
- New York City
- July · 11.45 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 2.29 °C (July); the largest is 26.55 °C (February).
How much do temperatures vary across the year?
The difference between the warmest and coolest monthly means is 1.84 °C in Colombo (Sri Lanka) and 24.77 °C in New York City (USA). This describes seasonal variation, not the range between daytime highs and nighttime lows.
Which location has more rainfall?
Colombo (Sri Lanka) has a higher daily rainfall average in 12 months and New York City (USA) in 0; 0 months are equal at the displayed precision. Rainfall amounts do not tell us how many days it rains.
Which location has more sunshine?
Colombo (Sri Lanka) has more average sunshine hours per day in 7 months and New York City (USA) in 5; 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: New York City (USA) minus Colombo (Sri Lanka)
Temperature °C
| Month | Colombo | New York City | +/- |
|---|---|---|---|
| Jan | 26.17 | −0.23 | −26.40 |
| Feb | 26.87 | 0.33 | −26.55 |
| Mar | 27.42 | 3.97 | −23.45 |
| Apr | 27.60 | 10.07 | −17.53 |
| May | 27.28 | 15.79 | −11.49 |
| Jun | 26.99 | 20.92 | −6.07 |
| Jul | 26.83 | 24.54 | −2.29 |
| Aug | 26.57 | 23.53 | −3.04 |
| Sep | 26.32 | 20.07 | −6.24 |
| Oct | 26.11 | 14.25 | −11.86 |
| Nov | 25.78 | 7.20 | −18.57 |
| Dec | 25.77 | 3.25 | −22.51 |
| Annual mean | 26.64 | 11.97 | −14.67 |
Average sunshine (hours/day)
| Month | Colombo | New York City | +/- |
|---|---|---|---|
| Jan | 9.98 | 5.78 | −4.20 |
| Feb | 10.48 | 6.49 | −3.99 |
| Mar | 10.49 | 7.82 | −2.67 |
| Apr | 10.19 | 8.73 | −1.46 |
| May | 8.37 | 9.65 | +1.28 |
| Jun | 9.26 | 10.96 | +1.70 |
| Jul | 9.68 | 11.45 | +1.77 |
| Aug | 9.56 | 10.38 | +0.82 |
| Sep | 8.67 | 8.99 | +0.32 |
| Oct | 8.25 | 7.13 | −1.13 |
| Nov | 7.86 | 6.65 | −1.21 |
| Dec | 8.81 | 5.20 | −3.61 |
| Annual mean | 9.30 | 8.27 | −1.03 |
Average daily rainfall (mm/day)
| Month | Colombo | New York City | +/- |
|---|---|---|---|
| Jan | 2.40 | 2.14 | −0.26 |
| Feb | 2.25 | 2.23 | −0.02 |
| Mar | 3.69 | 2.28 | −1.41 |
| Apr | 5.41 | 3.32 | −2.09 |
| May | 11.99 | 2.96 | −9.03 |
| Jun | 9.96 | 3.47 | −6.49 |
| Jul | 6.81 | 4.40 | −2.40 |
| Aug | 7.37 | 3.10 | −4.27 |
| Sep | 9.84 | 3.76 | −6.09 |
| Oct | 12.73 | 4.10 | −8.62 |
| Nov | 12.55 | 2.50 | −10.05 |
| Dec | 6.42 | 3.41 | −3.01 |
| Annual mean | 7.62 | 3.14 | −4.48 |
Snow (mm)
| Month | Colombo | New York City | +/- |
|---|---|---|---|
| Jan | 0.00 | 4.81 | +4.81 |
| Feb | 0.00 | 8.50 | +8.50 |
| Mar | 0.00 | 6.10 | +6.10 |
| Apr | 0.00 | 0.39 | +0.39 |
| May | 0.00 | 0.01 | +0.01 |
| 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 | 0.71 | +0.71 |
| Dec | 0.00 | 2.52 | +2.52 |
| Annual mean | 0.00 | 1.92 | +1.92 |
