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Sydenham, Lewisham

76°F
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Sydenham

Lewisham

76°
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Sydenham, Lewisham Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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Today Hourly 10-Day Radar MinuteCast®

Monthly

Air Quality Health & Activities
Amber Warning for Extreme Heat

August

January February March April May June July August September October November December

2026

2025 2026 2027

10-Day

S
M
T
W
T
F
S
26
Mainly cloudy and warm
77°
57°
27
Plenty of sun
77°
57°
28
Partly sunny and warm
76°
58°
29
Warm with plenty of sunshine
77°
59°
30
Warm with plenty of sunshine
78°
59°
31
Warm with brilliant sunshine
79°
60°
1
Sunshine and very warm
80°
59°
2
Cloudy and remaining warm
79°
58°
3
Considerable clouds
75°
57°
4
Some sun
76°
58°
5
Intervals of bright sunshine
76°
57°
6
A stray afternoon t-shower
75°
57°
7
Sunshine and a few clouds
76°
56°
8
Mostly sunny
73°
51°
9
Rain in the morning
74°
57°
10
Mostly sunny
74°
56°
11
Partly sunny
74°
53°
12
A blend of sun and clouds
73°
52°
13
An afternoon shower in spots
73°
51°
14
Couple of thunderstorms
71°
51°
15
Some sun
71°
52°
16
Plenty of sun
72°
56°
17
Partial sunshine
73°
55°
18
Partly sunny
76°
55°
19
Mostly sunny
75°
54°
20
A thundershower in spots
75°
53°
21
A thunderstorm in spots
73°
55°
22
Mostly sunny
74°
56°
23
Mostly sunny
75°
55°
24
Mostly cloudy
74°
52°
25
Mostly cloudy with a shower
73°
51°
26
Partly sunny
72°
51°
27
Partly sunny
71°
54°
28
Periods of rain
70°
54°
29
More sun than clouds
74°
53°
30
Plenty of sunshine
74°
53°
31
Plenty of sunshine
73°
52°
1
Clouds and sun
73°
54°
2
Thunderstorms, mainly early
72°
53°
3
Partly sunny
73°
51°
4
A thunderstorm in the area
71°
48°
5
Sun and some clouds
67°
50°

Temperature Graph

°F
80° 74° 68° 62° 56° Aug
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo

August Weather in Sydenham

Sydenham's August 2026 forecast shows daily high temperatures ranging from 67° to 80°, with overnight lows between 48° and 60°. The average high for August is 74° with an average low of 55°. 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 Sydenham. See also: September | October | November.

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World Europe United Kingdom Lewisham Sydenham

Weather Near Sydenham:

  • London, London
  • Luton, Luton
  • Southend-on-Sea, Southend-on-Sea
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