Annual mean 14°C · wettest around March · prevailing wind NW
Warmest
22.4 °C
Coldest
13.1 °C
Wettest
40%
Windiest
5.0 m/s
Prevailing
NW
3.9 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Los Altos Hills over the whole year is 14°C. September is the hottest month, with highs of about 22°C; February is the coldest, with lows of about 8°C. The rainy (wet) season in Los Altos Hills runs from October to May, peaking in March with a 41% chance of rain on a given day. The dry season is June to September; June is the driest month, at 9%. Winds in Los Altos Hills are highest in June, averaging 3.6 m/s (13 km/h), and lightest in November, at 2.1 m/s (8 km/h). The prevailing wind is from the NW. The clearest skies in Los Altos Hills come in October, when the sky is typically 32% covered; January is the cloudiest month, at 49%.
Month by month Los Altos Hills climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
14°C
8°C
11°C
41%
49%
2.5 m/s
16
0
78
February
14°C
8°C
11°C
40%
39%
2.8 m/s
23
0
75
March
15°C
9°C
12°C
41%
49%
3.1 m/s
24
0
78
April
17°C
10°C
14°C
32%
42%
3.3 m/s
40
2
82
May
18°C
12°C
15°C
28%
45%
3.5 m/s
52
5
82
June
21°C
14°C
18°C
9%
36%
3.6 m/s
64
13
75
July
21°C
14°C
19°C
17%
41%
3.3 m/s
72
15
73
August
21°C
15°C
20°C
16%
43%
3.1 m/s
79
20
68
September
22°C
14°C
20°C
15%
37%
2.8 m/s
76
18
69
October
21°C
12°C
18°C
27%
32%
2.3 m/s
72
12
77
November
17°C
9°C
14°C
33%
35%
2.1 m/s
45
1
85
December
14°C
8°C
11°C
38%
42%
2.2 m/s
16
0
79
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Los Altos Hills weather by season
Year round, Los Altos Hills has days of about 14°C at their warmest in January, its coolest month, and 22°C in September, its warmest; the coolest hours of the day run from 8°C to 15°C through the year, and the average temperature over the year is 14°C around the clock. Rain is most likely around March and least likely around June. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Los Altos Hills weather in winterDecember to February
High 14°CLow 8°CRain 40%
Winter in Los Altos Hills has typical daily highs of about 14°C and lows of about 8°C, with a 40% chance of rain on a given day.
Los Altos Hills weather in springMarch to May
High 17°CLow 10°CRain 34%
Spring in Los Altos Hills has typical daily highs of about 17°C and lows of about 10°C, with a 34% chance of rain on a given day.
Los Altos Hills weather in summerJune to August
High 21°CLow 14°CRain 14%
Summer in Los Altos Hills has typical daily highs of about 21°C and lows of about 14°C, with a 14% chance of rain on a given day.
Los Altos Hills weather in autumnSeptember to November
High 20°CLow 12°CRain 25%
Autumn in Los Altos Hills has typical daily highs of about 20°C and lows of about 12°C, with a 25% chance of rain on a given day.
When is the rainy season in Los Altos Hills?
The rainy (wet) season in Los Altos Hills runs from October to May, peaking in March with a 41% chance of rain on a given day. The dry season is June to September; June is the driest month, at 9%.
What time of year is Los Altos Hills windiest?
Winds in Los Altos Hills are highest in June, averaging 3.6 m/s (13 km/h), and lightest in November, at 2.1 m/s (8 km/h). The prevailing wind is from the NW.
What is the average temperature in Los Altos Hills year round?
The average temperature in Los Altos Hills over the whole year is 14°C. September is the hottest month, with highs of about 22°C; February is the coldest, with lows of about 8°C.