Annual mean 17°C · wettest around March · prevailing wind W
Warmest
29.8 °C
Coldest
16.9 °C
Wettest
23%
Windiest
4.1 m/s
Prevailing
W
3.4 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
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 Fallbrook over the whole year is 17°C. August is the hottest month, with highs of about 29°C; January is the coldest, with lows of about 8°C. The rainy (wet) season in Fallbrook runs from November to March, peaking in March with a 22% chance of rain on a given day. The dry season is April to October; August is the driest month, at 4%. Winds in Fallbrook are highest in May, averaging 2.5 m/s (9 km/h), and lightest in December, at 1.9 m/s (7 km/h). The prevailing wind is from the W. The clearest skies in Fallbrook come in November, when the sky is typically 21% covered; May is the cloudiest month, at 50%.
Month by month Fallbrook 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
17°C
8°C
14°C
21%
29%
2.0 m/s
51
1
87
February
18°C
8°C
15°C
19%
30%
2.3 m/s
53
3
83
March
18°C
9°C
15°C
22%
39%
2.4 m/s
53
3
84
April
21°C
11°C
18°C
12%
37%
2.4 m/s
73
11
80
May
21°C
14°C
19°C
7%
50%
2.5 m/s
81
14
77
June
25°C
17°C
23°C
6%
44%
2.4 m/s
76
31
56
July
28°C
19°C
27°C
6%
31%
2.4 m/s
56
53
27
August
29°C
19°C
28°C
4%
29%
2.3 m/s
52
59
20
September
28°C
18°C
27°C
9%
31%
2.1 m/s
62
48
31
October
26°C
14°C
23°C
12%
27%
2.1 m/s
78
33
53
November
22°C
10°C
19°C
13%
21%
2.0 m/s
79
11
77
December
18°C
8°C
15°C
18%
27%
1.9 m/s
61
1
87
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 Fallbrook weather by season
Year round, Fallbrook has days of about 17°C at their warmest in January, its coolest month, and 29°C in August, its warmest; the coolest hours of the day run from 8°C to 19°C through the year, and the average temperature over the year is 17°C around the clock. Rain is most likely around March and least likely around August. 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.
Fallbrook weather in winterDecember to February
High 18°CLow 8°CRain 19%
Winter in Fallbrook has typical daily highs of about 18°C and lows of about 8°C, with a 19% chance of rain on a given day.
Fallbrook weather in springMarch to May
High 20°CLow 12°CRain 14%
Spring in Fallbrook has typical daily highs of about 20°C and lows of about 12°C, with a 14% chance of rain on a given day.
Fallbrook weather in summerJune to August
High 27°CLow 18°CRain 6%
Summer in Fallbrook has typical daily highs of about 27°C and lows of about 18°C, with a 6% chance of rain on a given day.
Fallbrook weather in autumnSeptember to November
High 25°CLow 14°CRain 11%
Autumn in Fallbrook has typical daily highs of about 25°C and lows of about 14°C, with a 11% chance of rain on a given day.
When is the rainy season in Fallbrook?
The rainy (wet) season in Fallbrook runs from November to March, peaking in March with a 22% chance of rain on a given day. The dry season is April to October; August is the driest month, at 4%.
What time of year is Fallbrook windiest?
Winds in Fallbrook are highest in May, averaging 2.5 m/s (9 km/h), and lightest in December, at 1.9 m/s (7 km/h). The prevailing wind is from the W.
What is the average temperature in Fallbrook year round?
The average temperature in Fallbrook over the whole year is 17°C. August is the hottest month, with highs of about 29°C; January is the coldest, with lows of about 8°C.