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Best time to visit San Mateo

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

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Best overall month

April

Overall score 49.3%

High
90.5°F
Low
74.5°F
Sun
6.9h
Rain
0.1in
Rain days
31.0%
Humidity
68.3%
Wind
7.8mph
Day length
12.5h
Sun percent
55.4%
Month to omit

January

Overall score 25.0%

High
79.7°F
Low
71.2°F
Sun
1.3h
Rain
0.2in
Rain days
47.0%
Humidity
79.3%
Wind
9.8mph
Day length
11.4h
Sun percent
11.4%

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. April

Score 49.3%

#1
High
90.5°F
Low
74.5°F
Sun
6.9h
Rain
0.1in
Rain days
31.0%
Humidity
68.3%
Wind
7.8mph
Day length
12.5h
Sun percent
55.4%
Heat score
71.0%
Mild score
20.0%
Dry score
57.0%

2. March

Score 46.3%

#2
High
86.7°F
Low
72.3°F
Sun
5.8h
Rain
0.0in
Rain days
24.0%
Humidity
71.8%
Wind
8.8mph
Day length
12.1h
Sun percent
48.1%
Heat score
64.0%
Mild score
20.0%
Dry score
55.0%

3. May

Score 39.0%

#3
High
90.7°F
Low
77.0°F
Sun
4.9h
Rain
0.2in
Rain days
62.0%
Humidity
71.0%
Wind
6.9mph
Day length
12.8h
Sun percent
38.3%
Heat score
62.0%
Mild score
5.0%
Dry score
50.0%

Top months to omit

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

1. January

Score 25.0%

#1
High
79.7°F
Low
71.2°F
Sun
1.3h
Rain
0.2in
Rain days
47.0%
Humidity
79.3%
Wind
9.8mph
Day length
11.4h
Sun percent
11.4%
Heat score
35.0%
Mild score
4.0%
Dry score
36.0%

2. December

Score 25.7%

#2
High
81.5°F
Low
73.4°F
Sun
1.5h
Rain
0.3in
Rain days
58.0%
Humidity
79.7%
Wind
9.8mph
Day length
11.3h
Sun percent
13.3%
Heat score
38.0%
Mild score
1.0%
Dry score
38.0%

3. July

Score 26.0%

#3
High
84.4°F
Low
75.6°F
Sun
1.1h
Rain
0.6in
Rain days
94.0%
Humidity
82.5%
Wind
8.0mph
Day length
12.9h
Sun percent
8.5%
Heat score
42.0%
Mild score
0.0%
Dry score
36.0%

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. April

Score 71.0%

#1
High
90.5°F
Low
74.5°F
Sun
6.9h
Rain
0.1in
Rain days
31.0%
Humidity
68.3%
Wind
7.8mph
Day length
12.5h
Sun percent
55.4%
Heat high
83.0%
Heat low
100.0%
Heat sun
55.0%
Heat rain
38.0%

2. March

Score 64.0%

#2
High
86.7°F
Low
72.3°F
Sun
5.8h
Rain
0.0in
Rain days
24.0%
Humidity
71.8%
Wind
8.8mph
Day length
12.1h
Sun percent
48.1%
Heat high
69.0%
Heat low
100.0%
Heat sun
48.0%
Heat rain
52.0%

3. May

Score 62.0%

#3
High
90.7°F
Low
77.0°F
Sun
4.9h
Rain
0.2in
Rain days
62.0%
Humidity
71.0%
Wind
6.9mph
Day length
12.8h
Sun percent
38.3%
Heat high
84.0%
Heat low
100.0%
Heat sun
38.0%
Heat rain
0.0%

Top months to omit

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

1. January

Score 35.0%

#1
High
79.7°F
Low
71.2°F
Sun
1.3h
Rain
0.2in
Rain days
47.0%
Humidity
79.3%
Wind
9.8mph
Day length
11.4h
Sun percent
11.4%
Heat high
43.0%
Heat low
100.0%
Heat sun
11.0%
Heat rain
6.0%

2. December

Score 38.0%

#2
High
81.5°F
Low
73.4°F
Sun
1.5h
Rain
0.3in
Rain days
58.0%
Humidity
79.7%
Wind
9.8mph
Day length
11.3h
Sun percent
13.3%
Heat high
50.0%
Heat low
100.0%
Heat sun
13.0%
Heat rain
0.0%

3. July

Score 42.0%

#3
High
84.4°F
Low
75.6°F
Sun
1.1h
Rain
0.6in
Rain days
94.0%
Humidity
82.5%
Wind
8.0mph
Day length
12.9h
Sun percent
8.5%
Heat high
61.0%
Heat low
100.0%
Heat sun
9.0%
Heat rain
0.0%

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. March

Score 20.0%

#1
High
86.7°F
Low
72.3°F
Sun
5.8h
Rain
0.0in
Rain days
24.0%
Humidity
71.8%
Wind
8.8mph
Day length
12.1h
Sun percent
48.1%
Mild high
0.0%
Mild low
0.0%
Mild sun
56.0%
Mild rain
80.0%

2. April

Score 20.0%

#2
High
90.5°F
Low
74.5°F
Sun
6.9h
Rain
0.1in
Rain days
31.0%
Humidity
68.3%
Wind
7.8mph
Day length
12.5h
Sun percent
55.4%
Mild high
0.0%
Mild low
0.0%
Mild sun
71.0%
Mild rain
64.0%

3. February

Score 8.0%

#3
High
82.2°F
Low
71.2°F
Sun
2.9h
Rain
0.1in
Rain days
39.0%
Humidity
75.9%
Wind
9.5mph
Day length
11.7h
Sun percent
24.9%
Mild high
0.0%
Mild low
0.0%
Mild sun
10.0%
Mild rain
47.0%

Top months to omit

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

1. June

Score 0.0%

#1
High
86.9°F
Low
76.3°F
Sun
2.4h
Rain
0.4in
Rain days
88.0%
Humidity
78.0%
Wind
6.6mph
Day length
13.0h
Sun percent
18.5%
Mild high
0.0%
Mild low
0.0%
Mild sun
0.0%
Mild rain
0.0%

2. July

Score 0.0%

#2
High
84.4°F
Low
75.6°F
Sun
1.1h
Rain
0.6in
Rain days
94.0%
Humidity
82.5%
Wind
8.0mph
Day length
12.9h
Sun percent
8.5%
Mild high
0.0%
Mild low
0.0%
Mild sun
0.0%
Mild rain
0.0%

3. August

Score 0.0%

#3
High
84.0°F
Low
75.4°F
Sun
1.2h
Rain
0.5in
Rain days
90.0%
Humidity
82.3%
Wind
8.2mph
Day length
12.6h
Sun percent
9.5%
Mild high
0.0%
Mild low
0.0%
Mild sun
0.0%
Mild rain
0.0%

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. April

Score 57.0%

#1
High
90.5°F
Low
74.5°F
Sun
6.9h
Rain
0.1in
Rain days
31.0%
Humidity
68.3%
Wind
7.8mph
Day length
12.5h
Sun percent
55.4%
Dry sun
55.0%
Dry days
0.0%
Dry rain
100.0%
Dry comfort
100.0%

2. March

Score 55.0%

#2
High
86.7°F
Low
72.3°F
Sun
5.8h
Rain
0.0in
Rain days
24.0%
Humidity
71.8%
Wind
8.8mph
Day length
12.1h
Sun percent
48.1%
Dry sun
48.0%
Dry days
4.0%
Dry rain
100.0%
Dry comfort
100.0%

3. May

Score 50.0%

#3
High
90.7°F
Low
77.0°F
Sun
4.9h
Rain
0.2in
Rain days
62.0%
Humidity
71.0%
Wind
6.9mph
Day length
12.8h
Sun percent
38.3%
Dry sun
38.0%
Dry days
0.0%
Dry rain
100.0%
Dry comfort
100.0%

Top months to omit

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

1. January

Score 36.0%

#1
High
79.7°F
Low
71.2°F
Sun
1.3h
Rain
0.2in
Rain days
47.0%
Humidity
79.3%
Wind
9.8mph
Day length
11.4h
Sun percent
11.4%
Dry sun
11.0%
Dry days
0.0%
Dry rain
100.0%
Dry comfort
77.0%

2. July

Score 36.0%

#2
High
84.4°F
Low
75.6°F
Sun
1.1h
Rain
0.6in
Rain days
94.0%
Humidity
82.5%
Wind
8.0mph
Day length
12.9h
Sun percent
8.5%
Dry sun
9.0%
Dry days
0.0%
Dry rain
92.0%
Dry comfort
94.0%

3. August

Score 37.0%

#3
High
84.0°F
Low
75.4°F
Sun
1.2h
Rain
0.5in
Rain days
90.0%
Humidity
82.3%
Wind
8.2mph
Day length
12.6h
Sun percent
9.5%
Dry sun
10.0%
Dry days
0.0%
Dry rain
97.0%
Dry comfort
93.0%
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