Mumbai vs Surat: which is sunnier?
🇮🇳 India vs 🇮🇳 India · 226 km apart · long-term climate normals (NASA POWER, 2001–2020)
Surat is the sunnier overall: about 2,904 hours of sunshine a year to Mumbai's 2,753. Surat has the higher Sunshine Score in 6 of 12 months; the other 6 are within 2 points.
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.


At a glance
| Mumbai | Surat | |
|---|---|---|
| Sunshine hours / year | 2,753 | 2,904 |
| Sunniest month | January (95/100) | January (96/100) |
| Nov–Feb average score | 89/100 | 96/100 |
| Jun–Aug average score | 68/100 | 69/100 |
| Rain / year | 2,509 mm | 1,336 mm |
| Warmest sea | 32°C / 90°F | 32°C / 90°F |
| Peak midday UV | 11 (extreme) | 11 (extreme) |
Mumbai vs Surat month by month
| Month | Sunshine Score | Day high °C | Rain mm | Sea °C | ||||
|---|---|---|---|---|---|---|---|---|
| Mumbai | Surat | Mumbai | Surat | Mumbai | Surat | Mumbai | Surat | |
| January | 95 | 96 | 32° | 25° | 0 | 1 | 25° | 24° |
| February | 76 | 96 | 34° | 26° | 2 | 2 | 25° | 25° |
| March | 47 | 96 | 37° | 29° | 5 | 2 | 28° | 26° |
| April | 28 | 96 | 39° | 31° | 3 | 2 | 30° | 30° |
| May | 36 | 95 | 38° | 31° | 22 | 5 | 32° | 32° |
| June | 68 | 69 | 32° | 30° | 535 | 275 | 31° | 31° |
| July | 68 | 69 | 29° | 29° | 834 | 449 | 28° | 29° |
| August | 68 | 69 | 29° | 28° | 606 | 341 | 29° | 29° |
| September | 68 | 69 | 29° | 29° | 376 | 218 | 30° | 29° |
| October | 76 | 90 | 31° | 30° | 104 | 32 | 31° | 31° |
| November | 92 | 95 | 31° | 29° | 17 | 7 | 29° | 28° |
| December | 94 | 96 | 31° | 27° | 5 | 2 | 27° | 24° |
The sunnier month by month: Jan even · Feb Surat · Mar Surat · Apr Surat · May Surat · Jun even · Jul even · Aug even · Sep even · Oct Surat · Nov Surat · Dec even.
When to pick which
- November–February: Surat (average score 96/100 vs 89). Mumbai is the warmer, around 32°C daytime highs vs 27°C. See the winter sun ranking.
- March–May: Surat (average score 96/100 vs 37). Mumbai is the warmer, around 38°C daytime highs vs 30°C.
- June–August: too close to call — Mumbai averages 68/100, Surat 69/100. Daytime highs are similar (30°C vs 29°C).
- September–October: Surat (average score 80/100 vs 72). Daytime highs are similar (30°C vs 30°C).
Sea temperature
Both seas peak at 32°C / 90°F. Swimmable water (21°C+): Mumbai all year, Surat all year. Month-by-month sea temperatures are in the table above.
Full month-by-month guides: Mumbai weather by month · Surat weather by month · Best time to visit India.
More comparisons: Mumbai vs Navi Mumbai · Mumbai vs Ahmedabad · Mumbai vs Pune · Surat vs Navi Mumbai · Surat vs Karachi · Surat vs Ahmedabad · all head-to-heads