Precipitation is scarce, although in winter there may be periods of bad weather.
, in Orange County, about 10 kilometers (6 miles) away from the sea, in the southeastern part of the Los Angeles metropolitan area.
of the year, the temperature generally drops to 3 °C (37 °F), although in December 1990, it dropped to -0.5 °C (31 °F).
of the year, which occur when the Santa Ana wind blows, the temperature can reach 40/41 °C (104/106 °F). The Santa Ana blows more easily in September and October.
" can occur in the morning: this is a kind of cloudy and damp weather, sometimes foggy, accompanied by a sort of drizzle, which is formed on the sea and later can invade the mainland.
temperature ranges between 15 °C (59 °F) and 20.5 °C (69 °F): so, the sea remains a bit cold even in summer.
to visit Irvine is spring, from April to June, in fact, it is a mild or pleasantly warm and sunny period, and with a very low risk of hot days. The summer, from July to September, is usually a good period as well, since it is hot but not too much as well as sunny; occasionally, however, there can be hot days, when the Santa Ana blows. Autumn, in October and November, is generally a good season as well, although the Santa Ana is quite common, and the first rains can fall, especially in November.
. Here are the average temperatures.
January is generally a mild month. The average temperature is of
14.3 °C, with a minimum of
9.2 °C and a maximum of
19.4 °C.
On the coldest nights of the month, the temperature usually drops to around
4.5 °C. However, it dropped to
0.5 °C in January 1994.
On the warmest days of the month, the temperature usually reaches around
28 °C. However, it reached
32.2 °C in January 2003.
Precipitation amounts to
65 mm, distributed over 6 days.
The day lasts on average 10 hours and 10 minutes.
The average humidity is 62%.
The average wind speed is of
7.1 kph.
The average sea temperature is of
14.9 °C. Therefore, the sea is cold for swimming.
February is generally a very mild month. The average temperature is of
14.7 °C, with a minimum of
10.1 °C and a maximum of
19.3 °C.
On the coldest nights of the month, the temperature usually drops to around
5.5 °C. However, it dropped to
2.2 °C in February 2016.
On the warmest days of the month, the temperature usually reaches around
27.5 °C. However, it reached
32.2 °C in February 1995.
Precipitation amounts to
65 mm, distributed over 7 days.
The day lasts on average 11 hours and 0 minutes.
The average humidity is 64%.
The average wind speed is of
8.1 kph.
The average sea temperature is of
14.9 °C. Therefore, the sea is cold for swimming.
March is generally a very mild month. The average temperature is of
15.6 °C, with a minimum of
11.3 °C and a maximum of
19.8 °C.
On the coldest nights of the month, the temperature usually drops to around
7 °C. However, it dropped to
5 °C in March 2007.
On the warmest days of the month, the temperature usually reaches around
28 °C. However, it reached
35 °C in March 2007.
Precipitation amounts to
40 mm, distributed over 6 days.
The day lasts on average 12 hours and 0 minutes.
The average humidity is 66%.
The average wind speed is of
8.9 kph.
The average sea temperature is of
15.1 °C. Therefore, the sea is cold for swimming.
April is generally a very mild month. The average temperature is of
17 °C, with a minimum of
12.7 °C and a maximum of
21.2 °C.
On the coldest nights of the month, the temperature usually drops to around
9 °C. However, it dropped to
5 °C in April 1999.
On the warmest days of the month, the temperature usually reaches around
30.5 °C. However, it reached
37 °C in April 2008.
Precipitation amounts to
15 mm, distributed over 4 days.
The day lasts on average 13 hours and 5 minutes.
The average humidity is 64%.
The average wind speed is of
10.1 kph.
The average sea temperature is of
15.6 °C. Therefore, the sea is cold for swimming.
May is generally a warm month. The average temperature is of
18.5 °C, with a minimum of
15.2 °C and a maximum of
21.8 °C.
On the coldest nights of the month, the temperature usually drops to around
12 °C. However, it dropped to
9.4 °C in May 1999.
On the warmest days of the month, the temperature usually reaches around
29.5 °C. However, it reached
41.1 °C in May 2014.
Precipitation amounts to only
5 mm, distributed over 2 days.
The day lasts on average 13 hours and 55 minutes.
The average humidity is 68%.
The average wind speed is of
10.8 kph.
The average sea temperature is of
16.6 °C. Therefore, the sea is cold for swimming.
June is generally a warm month. The average temperature is of
20.2 °C, with a minimum of
17 °C and a maximum of
23.4 °C.
On the coldest nights of the month, the temperature usually drops to around
14.5 °C. However, it dropped to
8.3 °C in June 1995.
On the warmest days of the month, the temperature usually reaches around
29.5 °C. However, it reached
35.6 °C in June 2006.
Precipitation amounts to only
0 mm, so on average it never rains in the whole month.
The day lasts on average 14 hours and 25 minutes. So the days are long. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.
The average humidity is 70%. Hence, the air is normally humid.
The average wind speed is of
10.9 kph.
The average sea temperature is of
18 °C. Therefore, the sea is cold for swimming.
July is generally a warm month. The average temperature is of
22.5 °C, with a minimum of
19 °C and a maximum of
26.1 °C.
On the coldest nights of the month, the temperature usually drops to around
16.5 °C. However, it dropped to
15 °C in July 2012.
On the warmest days of the month, the temperature usually reaches around
31.5 °C. However, it reached
42.2 °C in July 2018.
Precipitation amounts to only
0 mm, so on average it never rains in the whole month.
The day lasts on average 14 hours and 5 minutes. So the days are long.
The average humidity is 70%. Hence, the air is normally humid.
The average wind speed is of
10.6 kph.
The average sea temperature is of
19.8 °C. Therefore, the sea is very cool for swimming.
August, the warmest month of the year, is generally a warm to hot month. The average temperature is of
23.2 °C, with a minimum of
19.5 °C and a maximum of
26.9 °C.
On the coldest nights of the month, the temperature usually drops to around
17 °C. However, it dropped to
13.9 °C in August 1991.
On the warmest days of the month, the temperature usually reaches around
33 °C. However, it reached
37.8 °C in August 2020.
Precipitation amounts to only
0 mm, so on average it never rains in the whole month.
The day lasts on average 13 hours and 20 minutes.
The average humidity is 69%.
The average wind speed is of
9.9 kph.
The average sea temperature is of
20.5 °C. Therefore, the sea is cool for swimming.
September is generally a warm month. The average temperature is of
22.5 °C, with a minimum of
18.3 °C and a maximum of
26.6 °C.
On the coldest nights of the month, the temperature usually drops to around
15 °C. However, it dropped to
12.7 °C in September 1995.
On the warmest days of the month, the temperature usually reaches around
35.5 °C. However, it reached
43.3 °C in September 2010.
Precipitation amounts to only
5 mm, and all occurs in one day.
The day lasts on average 12 hours and 20 minutes.
The average humidity is 68%.
The average wind speed is of
8.7 kph.
The average sea temperature is of
20.4 °C. Therefore, the sea is cool for swimming.
October is generally a warm month. The average temperature is of
19.9 °C, with a minimum of
15.1 °C and a maximum of
24.7 °C.
On the coldest nights of the month, the temperature usually drops to around
11.5 °C. However, it dropped to
7.8 °C in October 2009.
On the warmest days of the month, the temperature usually reaches around
34 °C. However, it reached
41.1 °C in October 2017.
Precipitation amounts to
15 mm, distributed over 3 days.
The day lasts on average 11 hours and 20 minutes.
The average humidity is 65%.
The average wind speed is of
7.8 kph.
The average sea temperature is of
19.3 °C. Therefore, the sea is very cool for swimming.
November is generally a very mild month. The average temperature is of
17 °C, with a minimum of
11.8 °C and a maximum of
22.2 °C.
On the coldest nights of the month, the temperature usually drops to around
7 °C. However, it dropped to
2.7 °C in November 1994.
On the warmest days of the month, the temperature usually reaches around
31 °C. However, it reached
38 °C in November 2010.
Precipitation amounts to
20 mm, distributed over 5 days.
The day lasts on average 10 hours and 25 minutes.
The average humidity is 60%.
The average wind speed is of
6.8 kph.
The average sea temperature is of
17.5 °C. Therefore, the sea is cold for swimming.
December, the coldest month of the year, is generally a mild month. The average temperature is of
14.1 °C, with a minimum of
9.1 °C and a maximum of
19.2 °C.
On the coldest nights of the month, the temperature usually drops to around
3.5 °C. However, it dropped to
2 °C in December 1998.
On the warmest days of the month, the temperature usually reaches around
26.5 °C. However, it reached
32.2 °C in December 2010.
Precipitation amounts to
50 mm, distributed over 7 days.
The day lasts on average 10 hours and 0 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
The average humidity is 61%.
The average wind speed is of
6.9 kph.
The average sea temperature is of
15.7 °C. Therefore, the sea is cold for swimming.