Warmest month
- London
- July · 18.57 °C
- Saint Martin
- September · 27.23 °C
London (Great Britain) vs Saint Martin (Saint Martin (French part)): Temperature, Rainfall and Sunshine
Reference period: London 2013–2023 · Saint Martin 2013–2023
Saint Martin (Saint Martin (French part)) has a higher monthly mean temperature than London (Great Britain) in every month of the year.
Key monthly differences
Coolest month
- London
- January · 4.73 °C
- Saint Martin
- February · 24.41 °C
Driest month
- London
- April · 1.33 mm/day
- Saint Martin
- March · 0.67 mm/day
Sunniest month
- London
- July · 10.94 hours/day
- Saint Martin
- June · 11.71 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 8.16 °C (July); the largest is 19.94 °C (January).
How much do temperatures vary across the year?
The difference between the warmest and coolest monthly means is 13.84 °C in London (Great Britain) and 2.82 °C in Saint Martin (Saint Martin (French part)). This describes seasonal variation, not the range between daytime highs and nighttime lows.
Which location has more rainfall?
London (Great Britain) has a higher daily rainfall average in 7 months and Saint Martin (Saint Martin (French part)) in 5; 0 months are equal at the displayed precision. Rainfall amounts do not tell us how many days it rains.
Which location has more sunshine?
London (Great Britain) has more average sunshine hours per day in 0 months and Saint Martin (Saint Martin (French part)) in 12; 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: Saint Martin (Saint Martin (French part)) minus London (Great Britain)
Temperature °C
| Month | London | Saint Martin | +/- |
|---|---|---|---|
| Jan | 4.73 | 24.67 | +19.94 |
| Feb | 5.44 | 24.41 | +18.97 |
| Mar | 6.84 | 24.46 | +17.62 |
| Apr | 9.18 | 24.86 | +15.68 |
| May | 12.67 | 25.68 | +13.02 |
| Jun | 16.27 | 26.42 | +10.15 |
| Jul | 18.57 | 26.73 | +8.16 |
| Aug | 17.74 | 27.07 | +9.33 |
| Sep | 15.48 | 27.23 | +11.75 |
| Oct | 12.31 | 26.96 | +14.65 |
| Nov | 8.09 | 26.28 | +18.19 |
| Dec | 6.52 | 25.47 | +18.95 |
| Annual mean | 11.15 | 25.85 | +14.70 |
Average sunshine (hours/day)
| Month | London | Saint Martin | +/- |
|---|---|---|---|
| Jan | 3.74 | 10.36 | +6.62 |
| Feb | 5.11 | 10.75 | +5.64 |
| Mar | 6.38 | 11.09 | +4.71 |
| Apr | 9.22 | 11.48 | +2.26 |
| May | 10.11 | 11.51 | +1.40 |
| Jun | 10.51 | 11.71 | +1.20 |
| Jul | 10.94 | 11.64 | +0.70 |
| Aug | 9.68 | 11.17 | +1.49 |
| Sep | 8.02 | 10.70 | +2.68 |
| Oct | 5.86 | 10.09 | +4.23 |
| Nov | 4.12 | 9.62 | +5.50 |
| Dec | 3.14 | 10.01 | +6.87 |
| Annual mean | 7.24 | 10.84 | +3.61 |
Average daily rainfall (mm/day)
| Month | London | Saint Martin | +/- |
|---|---|---|---|
| Jan | 1.92 | 1.08 | −0.85 |
| Feb | 1.71 | 1.13 | −0.58 |
| Mar | 1.61 | 0.67 | −0.94 |
| Apr | 1.33 | 1.12 | −0.21 |
| May | 1.85 | 1.63 | −0.22 |
| Jun | 1.93 | 1.33 | −0.61 |
| Jul | 1.79 | 1.94 | +0.15 |
| Aug | 2.02 | 2.79 | +0.77 |
| Sep | 1.61 | 4.03 | +2.42 |
| Oct | 2.51 | 3.88 | +1.37 |
| Nov | 2.27 | 3.67 | +1.40 |
| Dec | 2.10 | 1.55 | −0.56 |
| Annual mean | 1.89 | 2.07 | +0.18 |
Snow (mm)
| Month | London | Saint Martin | +/- |
|---|---|---|---|
| Jan | 0.94 | 0.00 | −0.94 |
| Feb | 0.76 | 0.00 | −0.76 |
| Mar | 0.77 | 0.00 | −0.77 |
| Apr | 0.05 | 0.00 | −0.05 |
| 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 | 0.04 | 0.00 | −0.04 |
| Dec | 0.40 | 0.00 | −0.40 |
| Annual mean | 0.25 | 0.00 | −0.25 |
