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Best time to visit Caerdydd

Monthly weather scores combine temperatures, sunshine, rain, and comfort signals to highlight when Caerdyddis at its most inviting, and when the weather is least cooperative.

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Best overall month

August

Overall score 44.0%

High
68.2°F
Low
56.7°F
Sun
4.5h
Rain
0.1in
Rain days
35.0%
Humidity
78.3%
Wind
14.8mph
Day length
14.5h
Sun percent
31.0%
Month to omit

December

Overall score 12.7%

High
48.7°F
Low
42.1°F
Sun
1.4h
Rain
0.2in
Rain days
53.0%
Humidity
84.3%
Wind
18.9mph
Day length
7.9h
Sun percent
17.7%

Overall travel weather

A simple average of the Heat Seeker, Mild Moderate, and Sun And Dry scores.

The tables below rank months by score. Each month includes the long-term weather inputs behind the score: daytime and nighttime temperature, sunshine, rain, rainy-day share, humidity, wind, day length, and the score components for this travel style.

Monthly score trend

This chart shows how the score changes through the year, so the top and omitted months below have context.

Top months to visit

Higher scores mean months that better match this travel style.

1. August

Score 44.0%

#1
High
68.2°F
Low
56.7°F
Sun
4.5h
Rain
0.1in
Rain days
35.0%
Humidity
78.3%
Wind
14.8mph
Day length
14.5h
Sun percent
31.0%
Heat score
23.0%
Mild score
71.0%
Dry score
38.0%

2. July

Score 43.0%

#2
High
68.2°F
Low
56.5°F
Sun
4.8h
Rain
0.1in
Rain days
37.0%
Humidity
79.3%
Wind
13.8mph
Day length
16.1h
Sun percent
29.8%
Heat score
22.0%
Mild score
70.0%
Dry score
37.0%

3. June

Score 42.3%

#3
High
64.8°F
Low
53.1°F
Sun
5.2h
Rain
0.1in
Rain days
34.0%
Humidity
81.8%
Wind
14.1mph
Day length
16.6h
Sun percent
31.4%
Heat score
23.0%
Mild score
68.0%
Dry score
36.0%

Top months to omit

Lower scores mean months where the weather is least aligned with this travel style.

1. December

Score 12.7%

#1
High
48.7°F
Low
42.1°F
Sun
1.4h
Rain
0.2in
Rain days
53.0%
Humidity
84.3%
Wind
18.9mph
Day length
7.9h
Sun percent
17.7%
Heat score
9.0%
Mild score
2.0%
Dry score
27.0%

2. February

Score 14.0%

#2
High
48.0°F
Low
40.1°F
Sun
2.1h
Rain
0.1in
Rain days
48.0%
Humidity
83.3%
Wind
18.9mph
Day length
10.0h
Sun percent
21.0%
Heat score
10.0%
Mild score
4.0%
Dry score
28.0%

3. March

Score 15.0%

#3
High
50.2°F
Low
40.8°F
Sun
2.6h
Rain
0.1in
Rain days
47.0%
Humidity
82.5%
Wind
17.2mph
Day length
11.9h
Sun percent
21.8%
Heat score
11.0%
Mild score
5.0%
Dry score
29.0%

Heat Seeker

Heat Seeker Score is a composite score designed for those who crave hot, sunny weather with minimal rainfall. It prioritizes high temperatures and abundant sunshine.

The tables below rank months by score. Each month includes the long-term weather inputs behind the score: daytime and nighttime temperature, sunshine, rain, rainy-day share, humidity, wind, day length, and the score components for this travel style.

Monthly score trend

This chart shows how the score changes through the year, so the top and omitted months below have context.

Top months to visit

Higher scores mean months that better match this travel style.

1. June

Score 23.0%

#1
High
64.8°F
Low
53.1°F
Sun
5.2h
Rain
0.1in
Rain days
34.0%
Humidity
81.8%
Wind
14.1mph
Day length
16.6h
Sun percent
31.4%
Heat high
0.0%
Heat low
100.0%
Heat sun
31.0%
Heat rain
32.0%

2. August

Score 23.0%

#2
High
68.2°F
Low
56.7°F
Sun
4.5h
Rain
0.1in
Rain days
35.0%
Humidity
78.3%
Wind
14.8mph
Day length
14.5h
Sun percent
31.0%
Heat high
1.0%
Heat low
100.0%
Heat sun
31.0%
Heat rain
30.0%

3. July

Score 22.0%

#3
High
68.2°F
Low
56.5°F
Sun
4.8h
Rain
0.1in
Rain days
37.0%
Humidity
79.3%
Wind
13.8mph
Day length
16.1h
Sun percent
29.8%
Heat high
1.0%
Heat low
100.0%
Heat sun
30.0%
Heat rain
26.0%

Top months to omit

Lower scores mean months where the weather is least aligned with this travel style.

1. December

Score 9.0%

#1
High
48.7°F
Low
42.1°F
Sun
1.4h
Rain
0.2in
Rain days
53.0%
Humidity
84.3%
Wind
18.9mph
Day length
7.9h
Sun percent
17.7%
Heat high
0.0%
Heat low
43.0%
Heat sun
18.0%
Heat rain
0.0%

2. February

Score 10.0%

#2
High
48.0°F
Low
40.1°F
Sun
2.1h
Rain
0.1in
Rain days
48.0%
Humidity
83.3%
Wind
18.9mph
Day length
10.0h
Sun percent
21.0%
Heat high
0.0%
Heat low
39.0%
Heat sun
21.0%
Heat rain
4.0%

3. January

Score 11.0%

#3
High
46.2°F
Low
38.3°F
Sun
2.1h
Rain
0.1in
Rain days
43.0%
Humidity
83.4%
Wind
17.1mph
Day length
8.4h
Sun percent
24.9%
Heat high
0.0%
Heat low
29.0%
Heat sun
25.0%
Heat rain
14.0%

Mild Moderate

Mild Moderate Score is designed for those who prefer comfortable, temperate weather conditions. It favors moderate temperatures and balanced weather patterns.

The tables below rank months by score. Each month includes the long-term weather inputs behind the score: daytime and nighttime temperature, sunshine, rain, rainy-day share, humidity, wind, day length, and the score components for this travel style.

Monthly score trend

This chart shows how the score changes through the year, so the top and omitted months below have context.

Top months to visit

Higher scores mean months that better match this travel style.

1. August

Score 71.0%

#1
High
68.2°F
Low
56.7°F
Sun
4.5h
Rain
0.1in
Rain days
35.0%
Humidity
78.3%
Wind
14.8mph
Day length
14.5h
Sun percent
31.0%
Mild high
98.0%
Mild low
66.0%
Mild sun
22.0%
Mild rain
56.0%

2. July

Score 70.0%

#2
High
68.2°F
Low
56.5°F
Sun
4.8h
Rain
0.1in
Rain days
37.0%
Humidity
79.3%
Wind
13.8mph
Day length
16.1h
Sun percent
29.8%
Mild high
98.0%
Mild low
68.0%
Mild sun
20.0%
Mild rain
51.0%

3. June

Score 68.0%

#3
High
64.8°F
Low
53.1°F
Sun
5.2h
Rain
0.1in
Rain days
34.0%
Humidity
81.8%
Wind
14.1mph
Day length
16.6h
Sun percent
31.4%
Mild high
70.0%
Mild low
94.0%
Mild sun
23.0%
Mild rain
58.0%

Top months to omit

Lower scores mean months where the weather is least aligned with this travel style.

1. December

Score 2.0%

#1
High
48.7°F
Low
42.1°F
Sun
1.4h
Rain
0.2in
Rain days
53.0%
Humidity
84.3%
Wind
18.9mph
Day length
7.9h
Sun percent
17.7%
Mild high
0.0%
Mild low
0.0%
Mild sun
0.0%
Mild rain
16.0%

2. February

Score 4.0%

#2
High
48.0°F
Low
40.1°F
Sun
2.1h
Rain
0.1in
Rain days
48.0%
Humidity
83.3%
Wind
18.9mph
Day length
10.0h
Sun percent
21.0%
Mild high
0.0%
Mild low
0.0%
Mild sun
2.0%
Mild rain
27.0%

3. March

Score 5.0%

#3
High
50.2°F
Low
40.8°F
Sun
2.6h
Rain
0.1in
Rain days
47.0%
Humidity
82.5%
Wind
17.2mph
Day length
11.9h
Sun percent
21.8%
Mild high
0.0%
Mild low
0.0%
Mild sun
4.0%
Mild rain
29.0%

Sun And Dry

Sun And Dry Score maximizes sun exposure and minimizes all forms of precipitation. Temperature is secondary, preferring mild-to-warm conditions.

The tables below rank months by score. Each month includes the long-term weather inputs behind the score: daytime and nighttime temperature, sunshine, rain, rainy-day share, humidity, wind, day length, and the score components for this travel style.

Monthly score trend

This chart shows how the score changes through the year, so the top and omitted months below have context.

Top months to visit

Higher scores mean months that better match this travel style.

1. August

Score 38.0%

#1
High
68.2°F
Low
56.7°F
Sun
4.5h
Rain
0.1in
Rain days
35.0%
Humidity
78.3%
Wind
14.8mph
Day length
14.5h
Sun percent
31.0%
Dry sun
31.0%
Dry days
0.0%
Dry rain
100.0%
Dry comfort
34.0%

2. July

Score 37.0%

#2
High
68.2°F
Low
56.5°F
Sun
4.8h
Rain
0.1in
Rain days
37.0%
Humidity
79.3%
Wind
13.8mph
Day length
16.1h
Sun percent
29.8%
Dry sun
30.0%
Dry days
0.0%
Dry rain
100.0%
Dry comfort
34.0%

3. June

Score 36.0%

#3
High
64.8°F
Low
53.1°F
Sun
5.2h
Rain
0.1in
Rain days
34.0%
Humidity
81.8%
Wind
14.1mph
Day length
16.6h
Sun percent
31.4%
Dry sun
31.0%
Dry days
0.0%
Dry rain
100.0%
Dry comfort
21.0%

Top months to omit

Lower scores mean months where the weather is least aligned with this travel style.

1. December

Score 27.0%

#1
High
48.7°F
Low
42.1°F
Sun
1.4h
Rain
0.2in
Rain days
53.0%
Humidity
84.3%
Wind
18.9mph
Day length
7.9h
Sun percent
17.7%
Dry sun
18.0%
Dry days
0.0%
Dry rain
100.0%
Dry comfort
0.0%

2. February

Score 28.0%

#2
High
48.0°F
Low
40.1°F
Sun
2.1h
Rain
0.1in
Rain days
48.0%
Humidity
83.3%
Wind
18.9mph
Day length
10.0h
Sun percent
21.0%
Dry sun
21.0%
Dry days
0.0%
Dry rain
100.0%
Dry comfort
0.0%

3. October

Score 28.0%

#3
High
58.5°F
Low
50.0°F
Sun
2.2h
Rain
0.2in
Rain days
52.0%
Humidity
82.5%
Wind
16.6mph
Day length
10.7h
Sun percent
20.7%
Dry sun
21.0%
Dry days
0.0%
Dry rain
100.0%
Dry comfort
0.0%
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