Warmest month
- Haida Gwaii
- August · 14.38 °C
- London
- July · 18.57 °C
Haida Gwaii (Canada) vs London (Great Britain): Temperature, Rainfall and Sunshine
Reference period: Haida Gwaii 2013–2023 · London 2013–2023
London (Great Britain) has a higher monthly mean temperature than Haida Gwaii (Canada) in every month of the year.
Key monthly differences
Coolest month
- Haida Gwaii
- February · 2.87 °C
- London
- January · 4.73 °C
Driest month
- Haida Gwaii
- May · 3.19 mm/day
- London
- April · 1.33 mm/day
Sunniest month
- Haida Gwaii
- July · 8.72 hours/day
- London
- July · 10.94 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 0.74 °C (January); the largest is 5.19 °C (June).
How much do temperatures vary across the year?
The difference between the warmest and coolest monthly means is 11.52 °C in Haida Gwaii (Canada) and 13.84 °C in London (Great Britain). This describes seasonal variation, not the range between daytime highs and nighttime lows.
Which location has more rainfall?
Haida Gwaii (Canada) has a higher daily rainfall average in 12 months and London (Great Britain) 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?
Haida Gwaii (Canada) has more average sunshine hours per day in 0 months and London (Great Britain) 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: London (Great Britain) minus Haida Gwaii (Canada)
Temperature °C
| Month | Haida Gwaii | London | +/- |
|---|---|---|---|
| Jan | 3.99 | 4.73 | +0.74 |
| Feb | 2.87 | 5.44 | +2.58 |
| Mar | 3.60 | 6.84 | +3.23 |
| Apr | 5.60 | 9.18 | +3.58 |
| May | 8.98 | 12.67 | +3.69 |
| Jun | 11.08 | 16.27 | +5.19 |
| Jul | 13.59 | 18.57 | +4.98 |
| Aug | 14.38 | 17.74 | +3.35 |
| Sep | 12.37 | 15.48 | +3.11 |
| Oct | 8.88 | 12.31 | +3.42 |
| Nov | 5.49 | 8.09 | +2.60 |
| Dec | 3.38 | 6.52 | +3.14 |
| Annual mean | 7.85 | 11.15 | +3.30 |
Average sunshine (hours/day)
| Month | Haida Gwaii | London | +/- |
|---|---|---|---|
| Jan | 2.17 | 3.74 | +1.57 |
| Feb | 4.02 | 5.11 | +1.09 |
| Mar | 6.09 | 6.38 | +0.29 |
| Apr | 7.09 | 9.22 | +2.13 |
| May | 8.67 | 10.11 | +1.44 |
| Jun | 8.60 | 10.51 | +1.91 |
| Jul | 8.72 | 10.94 | +2.22 |
| Aug | 7.87 | 9.68 | +1.81 |
| Sep | 6.65 | 8.02 | +1.37 |
| Oct | 4.81 | 5.86 | +1.05 |
| Nov | 3.10 | 4.12 | +1.02 |
| Dec | 2.53 | 3.14 | +0.62 |
| Annual mean | 5.86 | 7.24 | +1.38 |
Average daily rainfall (mm/day)
| Month | Haida Gwaii | London | +/- |
|---|---|---|---|
| Jan | 7.99 | 1.92 | −6.07 |
| Feb | 6.81 | 1.71 | −5.10 |
| Mar | 4.84 | 1.61 | −3.23 |
| Apr | 5.63 | 1.33 | −4.30 |
| May | 3.19 | 1.85 | −1.34 |
| Jun | 4.06 | 1.93 | −2.13 |
| Jul | 3.34 | 1.79 | −1.55 |
| Aug | 5.75 | 2.02 | −3.73 |
| Sep | 7.26 | 1.61 | −5.64 |
| Oct | 9.43 | 2.51 | −6.92 |
| Nov | 9.71 | 2.27 | −7.44 |
| Dec | 8.39 | 2.10 | −6.29 |
| Annual mean | 6.37 | 1.89 | −4.48 |
Snow (mm)
| Month | Haida Gwaii | London | +/- |
|---|---|---|---|
| Jan | 9.71 | 0.94 | −8.76 |
| Feb | 8.56 | 0.76 | −7.80 |
| Mar | 9.92 | 0.77 | −9.15 |
| Apr | 4.78 | 0.05 | −4.73 |
| May | 0.35 | 0.00 | −0.35 |
| 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 | 0.64 | 0.00 | −0.64 |
| Nov | 4.20 | 0.04 | −4.17 |
| Dec | 7.13 | 0.40 | −6.74 |
| Annual mean | 3.77 | 0.25 | −3.53 |
