Warmest month
- Mumbai
- May · 29.64 °C
- San Francisco
- September · 17.31 °C
Mumbai (India) vs San Francisco (USA): Temperature, Rainfall and Sunshine
Reference period: Mumbai 2013–2023 · San Francisco 2013–2023
Mumbai (India) has a higher monthly mean temperature than San Francisco (USA) in every month of the year.
Key monthly differences
Coolest month
- Mumbai
- January · 23.39 °C
- San Francisco
- January · 10.20 °C
Driest month
- Mumbai
- April · 0.01 mm/day
- San Francisco
- August · 0.01 mm/day
Sunniest month
- Mumbai
- May · 11.72 hours/day
- San Francisco
- June · 12.84 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 9.43 °C (September); the largest is 15.63 °C (May).
How much do temperatures vary across the year?
The difference between the warmest and coolest monthly means is 6.24 °C in Mumbai (India) and 7.11 °C in San Francisco (USA). This describes seasonal variation, not the range between daytime highs and nighttime lows.
Which location has more rainfall?
Mumbai (India) has a higher daily rainfall average in 6 months and San Francisco (USA) in 6; 0 months are equal at the displayed precision. Rainfall amounts do not tell us how many days it rains.
Which location has more sunshine?
Mumbai (India) has more average sunshine hours per day in 7 months and San Francisco (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: San Francisco (USA) minus Mumbai (India)
Temperature °C
| Month | Mumbai | San Francisco | +/- |
|---|---|---|---|
| Jan | 23.39 | 10.20 | −13.19 |
| Feb | 24.74 | 10.91 | −13.83 |
| Mar | 26.97 | 11.82 | −15.16 |
| Apr | 28.41 | 12.87 | −15.54 |
| May | 29.64 | 14.01 | −15.63 |
| Jun | 28.14 | 15.63 | −12.51 |
| Jul | 26.62 | 15.90 | −10.72 |
| Aug | 26.45 | 16.67 | −9.78 |
| Sep | 26.74 | 17.31 | −9.43 |
| Oct | 27.72 | 16.13 | −11.59 |
| Nov | 27.02 | 12.84 | −14.18 |
| Dec | 25.05 | 10.30 | −14.75 |
| Annual mean | 26.74 | 13.72 | −13.03 |
Average sunshine (hours/day)
| Month | Mumbai | San Francisco | +/- |
|---|---|---|---|
| Jan | 10.22 | 6.92 | −3.30 |
| Feb | 10.70 | 8.34 | −2.36 |
| Mar | 11.02 | 9.07 | −1.95 |
| Apr | 11.67 | 11.02 | −0.65 |
| May | 11.72 | 12.22 | +0.50 |
| Jun | 8.32 | 12.84 | +4.52 |
| Jul | 5.29 | 12.66 | +7.37 |
| Aug | 7.36 | 11.77 | +4.41 |
| Sep | 8.09 | 11.03 | +2.94 |
| Oct | 9.49 | 9.40 | −0.09 |
| Nov | 9.97 | 8.02 | −1.95 |
| Dec | 9.73 | 6.30 | −3.43 |
| Annual mean | 9.46 | 9.97 | +0.50 |
Average daily rainfall (mm/day)
| Month | Mumbai | San Francisco | +/- |
|---|---|---|---|
| Jan | 0.03 | 3.40 | +3.37 |
| Feb | 0.03 | 3.08 | +3.05 |
| Mar | 0.09 | 2.85 | +2.77 |
| Apr | 0.01 | 1.08 | +1.08 |
| May | 1.00 | 0.44 | −0.56 |
| Jun | 14.60 | 0.09 | −14.51 |
| Jul | 24.60 | 0.02 | −24.57 |
| Aug | 14.28 | 0.01 | −14.27 |
| Sep | 13.51 | 0.12 | −13.38 |
| Oct | 2.89 | 0.99 | −1.90 |
| Nov | 0.20 | 1.72 | +1.53 |
| Dec | 0.50 | 4.28 | +3.79 |
| Annual mean | 5.98 | 1.51 | −4.47 |
Snow (mm)
| Month | Mumbai | San Francisco | +/- |
|---|---|---|---|
| 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 |
| Annual mean | 0.00 | 0.00 | 0.00 |
