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Best time to visit Round Lake Beach

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

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Best overall month

September

Overall score 47.3%

High
74.8°F
Low
58.8°F
Sun
6.9h
Rain
0.1in
Rain days
29.0%
Humidity
71.8%
Wind
11.1mph
Day length
12.5h
Sun percent
55.4%
Month to omit

April

Overall score 18.0%

High
54.5°F
Low
39.6°F
Sun
3.6h
Rain
0.2in
Rain days
44.0%
Humidity
73.2%
Wind
14.5mph
Day length
13.4h
Sun percent
26.9%

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. September

Score 47.3%

#1
High
74.8°F
Low
58.8°F
Sun
6.9h
Rain
0.1in
Rain days
29.0%
Humidity
71.8%
Wind
11.1mph
Day length
12.5h
Sun percent
55.4%
Heat score
43.0%
Mild score
48.0%
Dry score
51.0%

2. June

Score 41.0%

#2
High
75.9°F
Low
60.3°F
Sun
7.5h
Rain
0.2in
Rain days
40.0%
Humidity
73.7%
Wind
11.8mph
Day length
15.2h
Sun percent
49.2%
Heat score
40.0%
Mild score
34.0%
Dry score
49.0%

3. August

Score 39.7%

#3
High
79.3°F
Low
64.0°F
Sun
7.1h
Rain
0.1in
Rain days
33.0%
Humidity
74.8%
Wind
10.1mph
Day length
13.8h
Sun percent
51.3%
Heat score
49.0%
Mild score
18.0%
Dry score
52.0%

Top months to omit

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

1. April

Score 18.0%

#1
High
54.5°F
Low
39.6°F
Sun
3.6h
Rain
0.2in
Rain days
44.0%
Humidity
73.2%
Wind
14.5mph
Day length
13.4h
Sun percent
26.9%
Heat score
16.0%
Mild score
7.0%
Dry score
31.0%

2. January

Score 18.3%

#2
High
28.8°F
Low
18.1°F
Sun
2.4h
Rain
0.1in
Rain days
28.0%
Humidity
80.4%
Wind
13.3mph
Day length
9.5h
Sun percent
25.3%
Heat score
13.0%
Mild score
12.0%
Dry score
30.0%

3. March

Score 18.7%

#3
High
45.0°F
Low
31.3°F
Sun
3.4h
Rain
0.2in
Rain days
34.0%
Humidity
72.7%
Wind
14.7mph
Day length
12.0h
Sun percent
28.4%
Heat score
14.0%
Mild score
11.0%
Dry score
31.0%

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. August

Score 49.0%

#1
High
79.3°F
Low
64.0°F
Sun
7.1h
Rain
0.1in
Rain days
33.0%
Humidity
74.8%
Wind
10.1mph
Day length
13.8h
Sun percent
51.3%
Heat high
42.0%
Heat low
100.0%
Heat sun
51.0%
Heat rain
34.0%

2. July

Score 48.0%

#2
High
80.1°F
Low
65.5°F
Sun
7.2h
Rain
0.2in
Rain days
38.0%
Humidity
77.1%
Wind
10.0mph
Day length
14.9h
Sun percent
48.3%
Heat high
45.0%
Heat low
100.0%
Heat sun
48.0%
Heat rain
24.0%

3. September

Score 43.0%

#3
High
74.8°F
Low
58.8°F
Sun
6.9h
Rain
0.1in
Rain days
29.0%
Humidity
71.8%
Wind
11.1mph
Day length
12.5h
Sun percent
55.4%
Heat high
25.0%
Heat low
100.0%
Heat sun
55.0%
Heat rain
42.0%

Top months to omit

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

1. January

Score 13.0%

#1
High
28.8°F
Low
18.1°F
Sun
2.4h
Rain
0.1in
Rain days
28.0%
Humidity
80.4%
Wind
13.3mph
Day length
9.5h
Sun percent
25.3%
Heat high
0.0%
Heat low
0.0%
Heat sun
25.0%
Heat rain
44.0%

2. February

Score 13.0%

#2
High
33.8°F
Low
21.4°F
Sun
3.1h
Rain
0.1in
Rain days
31.0%
Humidity
79.4%
Wind
13.7mph
Day length
10.6h
Sun percent
29.2%
Heat high
0.0%
Heat low
0.0%
Heat sun
29.0%
Heat rain
38.0%

3. March

Score 14.0%

#3
High
45.0°F
Low
31.3°F
Sun
3.4h
Rain
0.2in
Rain days
34.0%
Humidity
72.7%
Wind
14.7mph
Day length
12.0h
Sun percent
28.4%
Heat high
0.0%
Heat low
22.0%
Heat sun
28.0%
Heat rain
32.0%

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. May

Score 52.0%

#1
High
64.2°F
Low
49.3°F
Sun
5.0h
Rain
0.2in
Rain days
41.0%
Humidity
74.3%
Wind
12.4mph
Day length
14.6h
Sun percent
34.2%
Mild high
65.0%
Mild low
52.0%
Mild sun
28.0%
Mild rain
42.0%

2. September

Score 48.0%

#2
High
74.8°F
Low
58.8°F
Sun
6.9h
Rain
0.1in
Rain days
29.0%
Humidity
71.8%
Wind
11.1mph
Day length
12.5h
Sun percent
55.4%
Mild high
37.0%
Mild low
42.0%
Mild sun
71.0%
Mild rain
69.0%

3. October

Score 36.0%

#3
High
61.2°F
Low
46.6°F
Sun
4.4h
Rain
0.1in
Rain days
33.0%
Humidity
69.3%
Wind
13.2mph
Day length
11.0h
Sun percent
39.9%
Mild high
37.0%
Mild low
22.0%
Mild sun
40.0%
Mild rain
60.0%

Top months to omit

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

1. April

Score 7.0%

#1
High
54.5°F
Low
39.6°F
Sun
3.6h
Rain
0.2in
Rain days
44.0%
Humidity
73.2%
Wind
14.5mph
Day length
13.4h
Sun percent
26.9%
Mild high
0.0%
Mild low
0.0%
Mild sun
14.0%
Mild rain
36.0%

2. March

Score 11.0%

#2
High
45.0°F
Low
31.3°F
Sun
3.4h
Rain
0.2in
Rain days
34.0%
Humidity
72.7%
Wind
14.7mph
Day length
12.0h
Sun percent
28.4%
Mild high
0.0%
Mild low
0.0%
Mild sun
17.0%
Mild rain
58.0%

3. January

Score 12.0%

#3
High
28.8°F
Low
18.1°F
Sun
2.4h
Rain
0.1in
Rain days
28.0%
Humidity
80.4%
Wind
13.3mph
Day length
9.5h
Sun percent
25.3%
Mild high
0.0%
Mild low
0.0%
Mild sun
11.0%
Mild rain
71.0%

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 52.0%

#1
High
79.3°F
Low
64.0°F
Sun
7.1h
Rain
0.1in
Rain days
33.0%
Humidity
74.8%
Wind
10.1mph
Day length
13.8h
Sun percent
51.3%
Dry sun
51.0%
Dry days
0.0%
Dry rain
100.0%
Dry comfort
75.0%

2. July

Score 51.0%

#2
High
80.1°F
Low
65.5°F
Sun
7.2h
Rain
0.2in
Rain days
38.0%
Humidity
77.1%
Wind
10.0mph
Day length
14.9h
Sun percent
48.3%
Dry sun
48.0%
Dry days
0.0%
Dry rain
100.0%
Dry comfort
78.0%

3. September

Score 51.0%

#3
High
74.8°F
Low
58.8°F
Sun
6.9h
Rain
0.1in
Rain days
29.0%
Humidity
71.8%
Wind
11.1mph
Day length
12.5h
Sun percent
55.4%
Dry sun
55.0%
Dry days
0.0%
Dry rain
100.0%
Dry comfort
59.0%

Top months to omit

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

1. January

Score 30.0%

#1
High
28.8°F
Low
18.1°F
Sun
2.4h
Rain
0.1in
Rain days
28.0%
Humidity
80.4%
Wind
13.3mph
Day length
9.5h
Sun percent
25.3%
Dry sun
25.0%
Dry days
0.0%
Dry rain
100.0%
Dry comfort
0.0%

2. March

Score 31.0%

#2
High
45.0°F
Low
31.3°F
Sun
3.4h
Rain
0.2in
Rain days
34.0%
Humidity
72.7%
Wind
14.7mph
Day length
12.0h
Sun percent
28.4%
Dry sun
28.0%
Dry days
0.0%
Dry rain
100.0%
Dry comfort
0.0%

3. April

Score 31.0%

#3
High
54.5°F
Low
39.6°F
Sun
3.6h
Rain
0.2in
Rain days
44.0%
Humidity
73.2%
Wind
14.5mph
Day length
13.4h
Sun percent
26.9%
Dry sun
27.0%
Dry days
0.0%
Dry rain
100.0%
Dry comfort
0.0%
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