Shanghai (Pudong) vs Nantong (Tongzhou): which is sunnier?
🇨🇳 China vs 🇨🇳 China · 130 km apart · long-term climate normals (NASA POWER, 2001–2020)
Shanghai (Pudong) and Nantong (Tongzhou) are virtually tied for annual sunshine — about 1,596 vs 1,567 hours a year. Nantong (Tongzhou) has the higher Sunshine Score in 4 of 12 months, Shanghai (Pudong) in 1 (7 within 2 points).
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.
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At a glance
| Shanghai (Pudong) | Nantong (Tongzhou) | |
|---|---|---|
| Sunshine hours / year | 1,596 | 1,567 |
| Sunniest month | October (73/100) | October (75/100) |
| Nov–Feb average score | 19/100 | 19/100 |
| Jun–Aug average score | 60/100 | 60/100 |
| Rain / year | 1,304 mm | 1,194 mm |
| Warmest sea | 33°C / 91°F | 33°C / 91°F |
| Peak midday UV | 8 (very high) | 7 (high) |
Shanghai (Pudong) vs Nantong (Tongzhou) month by month
| Month | Sunshine Score | Day high °C | Rain mm | Sea °C | ||||
|---|---|---|---|---|---|---|---|---|
| Shanghai (Pudong) | Nantong (Tongzhou) | Shanghai (Pudong) | Nantong (Tongzhou) | Shanghai (Pudong) | Nantong (Tongzhou) | Shanghai (Pudong) | Nantong (Tongzhou) | |
| January | 0 | 0 | 8° | 7° | 68 | 58 | 7° | 7° |
| February | 0 | 6 | 8° | 9° | 79 | 68 | 7° | 6° |
| March | 24 | 37 | 12° | 14° | 90 | 72 | 10° | 10° |
| April | 53 | 72 | 17° | 20° | 96 | 86 | 17° | 17° |
| May | 68 | 71 | 22° | 25° | 106 | 90 | 21° | 22° |
| June | 60 | 60 | 25° | 28° | 202 | 187 | 25° | 26° |
| July | 61 | 60 | 29° | 31° | 145 | 170 | 30° | 30° |
| August | 60 | 60 | 29° | 31° | 173 | 155 | 33° | 33° |
| September | 63 | 65 | 26° | 27° | 137 | 122 | 30° | 30° |
| October | 73 | 75 | 22° | 22° | 78 | 67 | 23° | 22° |
| November | 56 | 56 | 17° | 17° | 73 | 68 | 18° | 17° |
| December | 19 | 13 | 11° | 10° | 57 | 51 | 10° | 10° |
The sunnier month by month: Jan even · Feb Nantong (Tongzhou) · Mar Nantong (Tongzhou) · Apr Nantong (Tongzhou) · May Nantong (Tongzhou) · Jun even · Jul even · Aug even · Sep even · Oct even · Nov even · Dec Shanghai (Pudong).
When to pick which
- November–February: too close to call — Shanghai (Pudong) averages 19/100, Nantong (Tongzhou) 19/100. Daytime highs are similar (11°C vs 11°C). See the winter sun ranking.
- March–May: Nantong (Tongzhou) (average score 60/100 vs 48). Nantong (Tongzhou) is the warmer, around 20°C daytime highs vs 17°C.
- June–August: too close to call — Shanghai (Pudong) averages 60/100, Nantong (Tongzhou) 60/100. Nantong (Tongzhou) is the warmer, around 30°C daytime highs vs 28°C.
- September–October: too close to call — Shanghai (Pudong) averages 68/100, Nantong (Tongzhou) 70/100. Daytime highs are similar (24°C vs 25°C).
Sea temperature
Both seas peak at 33°C / 91°F. Swimmable water (21°C+): Shanghai (Pudong) about 6 months a year, Nantong (Tongzhou) about 6 months a year. Month-by-month sea temperatures are in the table above.
Full month-by-month guides: Shanghai (Pudong) weather by month · Nantong (Tongzhou) weather by month · Best time to visit China.
More comparisons: Shanghai (Pudong) vs Wuxi · Shanghai (Pudong) vs Jiaxing · Shanghai (Pudong) vs Zhoushan · Nantong (Tongzhou) vs Wuxi · Nantong (Tongzhou) vs Changzhou · all head-to-heads