Dalian Weather

Dalian has a monsoon-influenced humid continental climate , characterized by warm wet summers due to the East Asian monsoon, and cold, windy, dry winters that reflect the influence of the vast Siberian anticyclone. Except for winter, the city experiences a one-month seasonal lag due to its position on the Liaodong Peninsula. The monthly 24-hour average temperature ranges from −3.6 °C (25.5 °F) in January to 24.4 °C (75.9 °F) in August. Annual precipitation averages 580 millimeters (22.8 in) but is heavily concentrated in the summer months and can vary greatly from year to year. Due to the coastal location, the mean diurnal temperature variation annually is small, at 6.66 °C (12.0 °F). The monthly percent of possible sunshine ranges from 49% in July to 68% in September and October, with 2,740 hours of bright sunshine annually. The annual mean temperature is 11.26 °C (52.3 °F). Extremes since 1951 have ranged from −21.1 °C (−6 °F) on 4 January 1970 to 36.6 °C (98 °F) on 14 July 2015.

Average Temperature
Jan
36 °F
2 °C
Feb
37 °F
3 °C
Mar
46 °F
8 °C
Apr
55 °F
13 °C
May
64 °F
18 °C
Jun
73 °F
23 °C
Jul
81 °F
27 °C
Aug
82 °F
28 °C
Sep
77 °F
25 °C
Oct
64 °F
18 °C
Nov
54 °F
12 °C
Dec
39 °F
4 °C
Humidity
Jan
32%
Feb
35%
Mar
45%
Apr
43%
May
48%
Jun
64%
Jul
69%
Aug
66%
Sep
54%
Oct
51%
Nov
42%
Dec
43%
Rain
Jan
0mm
Feb
3mm
Mar
7mm
Apr
13mm
May
14mm
Jun
20mm
Jul
24mm
Aug
90mm
Sep
24mm
Oct
8mm
Nov
16mm
Dec
11mm
Clouds
Jan
32%
Feb
57%
Mar
26%
Apr
47%
May
25%
Jun
42%
Jul
32%
Aug
50%
Sep
10%
Oct
41%
Nov
36%
Dec
36%
Air quality US AQI
Jan
103
Feb
110
Mar
116
Apr
98
May
89
Jun
86
Jul
81
Aug
64
Sep
74
Oct
79
Nov
77
Dec
88
Sun
Jan
2UVI
Feb
3UVI
Mar
4UVI
Apr
5UVI
May
7UVI
Jun
7UVI
Jul
8UVI
Aug
7UVI
Sep
6UVI
Oct
4UVI
Nov
2UVI
Dec
2UVI