Nantong (Tongzhou) weather by month & the best time to visit
China · major coastal city · humid subtropical climate
The best time to visit Nantong (Tongzhou) is October — its sunniest month (Sunshine Score 75/100), with April and May close behind. Nantong (Tongzhou) averages about 1,567 hours of sunshine a year. Daytime highs around 22°C / 72°F and roughly 67 mm of rain in October.
When is the best time to visit Nantong (Tongzhou)?
For sunshine, the best time to visit Nantong (Tongzhou) is October, then April and May. The dullest month is January (0/100, 58 mm of rain). The full month-by-month picture is in the table below.
How sunny is Nantong (Tongzhou)?
Nantong (Tongzhou) isn't a sunny place by world standards: about 1,567 hours of sunshine a year. 75 Sunshine Score points separate October (75) from January (0), so the month you pick matters. It ranks #165 of 254 destinations in China for annual sunshine, below the national median of 2,110 hours. Rain has a clear season: the wettest stretch, around July, carries about 43% of the annual 1,194 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 0 | 7° / 45°F | 0° / 32°F | 58 mm | 2 | 7° / 45°F |
| February | 6 | 9° / 48°F | 1° / 34°F | 68 mm | 3 | 6° / 43°F |
| March | 37 | 14° / 57°F | 4° / 39°F | 72 mm | 4 | 10° / 50°F |
| April | 72 | 20° / 68°F | 9° / 48°F | 86 mm | 5 | 17° / 63°F |
| May | 71 | 25° / 77°F | 15° / 59°F | 90 mm | 6 | 22° / 72°F |
| June | 60 | 28° / 82°F | 20° / 68°F | 187 mm | 5 | 26° / 79°F |
| July | 60 | 31° / 88°F | 24° / 75°F | 170 mm | 6 | 30° / 86°F |
| August | 60 | 31° / 88°F | 25° / 77°F | 155 mm | 7 | 33° / 91°F |
| September | 65 | 27° / 81°F | 21° / 70°F | 122 mm | 5 | 30° / 86°F |
| October | 75 | 22° / 72°F | 15° / 59°F | 67 mm | 4 | 22° / 72°F |
| November | 56 | 17° / 63°F | 9° / 48°F | 68 mm | 2 | 17° / 63°F |
| December | 13 | 10° / 50°F | 2° / 36°F | 51 mm | 2 | 10° / 50°F |
Sea temperature in Nantong (Tongzhou) by month
The sea off Nantong (Tongzhou) is warmest in August at around 33°C / 91°F, and coolest in February at 6°C / 43°F. The water sits at a comfortable 21°C or warmer roughly 6 months a year. Month-by-month sea-surface temperatures are in the Sea column of the table above.
Head-to-head
How Nantong (Tongzhou) compares month by month: Nantong (Tongzhou) vs Shanghai (Pudong) · Nantong (Tongzhou) vs Wuxi · Nantong (Tongzhou) vs Changzhou · all comparisons
Nantong (Tongzhou): questions and answers
What kind of destination is Nantong (Tongzhou)?
Nantong (Tongzhou) is a major coastal city in China with a humid subtropical climate — the sea reaches 33°C at its warmest and is swimmable (21°C+) about 6 months a year.
How many hours of sunshine does Nantong (Tongzhou) get a year?
Nantong (Tongzhou) gets about 1,567 hours of sunshine a year, at its best around October.
When is the best time to visit Nantong (Tongzhou)?
The sunniest time to visit Nantong (Tongzhou) is October, when the Sunshine Score peaks at 75/100 (with April and May close behind). Expect daytime highs around 22°C / 72°F.
What is the least sunny month in Nantong (Tongzhou)?
January is the least sunny month in Nantong (Tongzhou), scoring 0/100 with about 58 mm of rain.
What is the sea temperature in Nantong (Tongzhou)?
The sea in Nantong (Tongzhou) ranges from about 6°C (February) to 33°C (August). Month-by-month sea temperatures are on this page.
How strong is the sun in Nantong (Tongzhou)?
The typical midday UV index in Nantong (Tongzhou) peaks around 7 (high) in August, easing to about 2 (low) in January. Month-by-month midday UV values are in the UV column of the table on this page.
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