S
M
T
W
T
F
S
26
102°
73°
27
105°
76°
28
104°
73°
29
100°
75°
30
102°
72°
31
104°
73°
1
97°
72°
2
99°
71°
3
103°
70°
4
103°
71°
5
101°
75°
6
100°
76°
7
101°
75°
8
99°
71°
9
100°
73°
10
100°
74°
11
103°
73°
12
105°
77°
13
103°
75°
14
103°
74°
15
99°
71°
16
94°
70°
17
98°
72°
18
99°
73°
19
100°
71°
20
102°
72°
21
96°
72°
22
95°
71°
23
96°
71°
24
96°
70°
25
95°
71°
26
96°
71°
27
95°
70°
28
95°
71°
29
94°
69°
30
95°
70°
31
95°
70°
1
94°
69°
2
92°
67°
3
87°
67°
4
86°
66°
5
90°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Carlsbad
Carlsbad's August 2026 forecast shows daily high temperatures ranging from 86° to 105°, with overnight lows between 66° and 77°. The average high for August is 97° with an average low of 71°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Carlsbad. See also: September | October | November.