Weihai weather by month & the best time to visit
China · coastal city break · humid subtropical climate

The best time to visit Weihai is October — its sunniest month (Sunshine Score 79/100), with June and September close behind. Weihai averages about 1,939 hours of sunshine a year. Daytime highs around 19°C / 66°F and roughly 22 mm of rain in October.
When is the best time to visit Weihai?
For sunshine, the best time to visit Weihai is October, then June and September. The dullest month is January (0/100, 10 mm of rain). The full month-by-month picture is in the table below.
How sunny is Weihai?
Weihai gets a moderate 1,939 hours of sunshine a year. 79 Sunshine Score points separate October (79) from January (0), so the month you pick matters. It ranks #140 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 August, carries about 59% of the annual 699 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 0 | 2° / 36°F | -2° / 28°F | 10 mm | 1 | 2° / 36°F |
| February | 0 | 4° / 39°F | -1° / 30°F | 16 mm | 2 | 2° / 36°F |
| March | 0 | 8° / 46°F | 1° / 34°F | 18 mm | 3 | 4° / 39°F |
| April | 34 | 13° / 55°F | 6° / 43°F | 43 mm | 5 | 12° / 54°F |
| May | 73 | 19° / 66°F | 12° / 54°F | 57 mm | 6 | 17° / 63°F |
| June | 77 | 23° / 73°F | 18° / 64°F | 68 mm | 5 | 23° / 73°F |
| July | 62 | 26° / 79°F | 22° / 72°F | 170 mm | 6 | 26° / 79°F |
| August | 62 | 27° / 81°F | 23° / 73°F | 163 mm | 6 | 31° / 88°F |
| September | 76 | 24° / 75°F | 19° / 66°F | 76 mm | 5 | 28° / 82°F |
| October | 79 | 19° / 66°F | 14° / 57°F | 22 mm | 3 | 22° / 72°F |
| November | 28 | 12° / 54°F | 7° / 45°F | 38 mm | 2 | 16° / 61°F |
| December | 0 | 5° / 41°F | 1° / 34°F | 18 mm | 1 | 8° / 46°F |
Sea temperature in Weihai by month
The sea off Weihai is warmest in August at around 31°C / 88°F, and coolest in January at 2°C / 36°F. The water sits at a comfortable 21°C or warmer roughly 5 months a year. Month-by-month sea-surface temperatures are in the Sea column of the table above.
Nearest destinations
Head-to-head
How Weihai compares month by month: Weihai vs Qingdao (Jiaozhou) · Weihai vs Dalian (Ganjingzi) · Weihai vs Yantai · all comparisons
Weihai: questions and answers
What kind of destination is Weihai?
Weihai is a coastal city break in China with a humid subtropical climate — the sea reaches 31°C at its warmest and is swimmable (21°C+) about 5 months a year.
How many hours of sunshine does Weihai get a year?
Weihai gets about 1,939 hours of sunshine a year, at its best around October.
When is the best time to visit Weihai?
The sunniest time to visit Weihai is October, when the Sunshine Score peaks at 79/100 (with June and September close behind). Expect daytime highs around 19°C / 66°F.
What is the least sunny month in Weihai?
January is the least sunny month in Weihai, scoring 0/100 with about 10 mm of rain.
What is the sea temperature in Weihai?
The sea in Weihai ranges from about 2°C (January) to 31°C (August). Month-by-month sea temperatures are on this page.
How strong is the sun in Weihai?
The typical midday UV index in Weihai peaks around 6 (high) in May, easing to about 1 (low) in January. Month-by-month midday UV values are in the UV column of the table on this page.
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