Climate and monthly weather forecastRancho Bernardo, CA
Climate and monthly weather forecast
Weather in January
January, like December, in Rancho Bernardo, California, is another enjoyable winter month, with an average temperature ranging between min 48.4°F (9.1°C) and max 66.4°F (19.1°C). Transitioning into January, Rancho Bernardo experiences an average high-temperature of a still comfortable 66.4°F (19.1°C), marking a minor shift from the preceding month. Weather in January »Weather in February
The last month of the winter, February, is another refreshing month in Rancho Bernardo, California, with an average temperature fluctuating between 47.1°F (8.4°C) and 64.9°F (18.3°C). As February takes hold, the average high-temperature is a still enjoyable 64.9°F (18.3°C), nearly mirroring that of the previous month. Weather in February »Weather in March
March, the first month of the spring in Rancho Bernardo, is still a refreshing month, with temperature in the range of an average low of 48.2°F (9°C) and an average high of 67.5°F (19.7°C). An average high-temperature of a still refreshing 67.5°F (19.7°C) marks March, exhibiting a close resemblance to the conditions in February. Weather in March »Weather in April
April is a pleasant spring month in Rancho Bernardo, California, with an average temperature ranging between max 70.2°F (21.2°C) and min 49.8°F (9.9°C). April's advent notes a subtle adjustment in average high-temperature to a pleasant 70.2°F (21.2°C) from March. Weather in April »Weather in May
The last month of the spring, May, is another pleasant month in Rancho Bernardo, California, with temperature in the range of an average low of 52.5°F (11.4°C) and an average high of 71.6°F (22°C). The arrival of May coincides with an average high-temperature of a still agreeable 71.6°F (22°C), indicating a minimal shift from April's 70.2°F (21.2°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Rancho Bernardo, California, with an average temperature ranging between min 56.1°F (13.4°C) and max 77.2°F (25.1°C). The average high-temperature mildly increases in June, edging from an agreeable 71.6°F (22°C) in May to a warm 77.2°F (25.1°C). Weather in June »Weather in July
July, like June, in Rancho Bernardo, California, is a moderately hot summer month, with an average temperature ranging between max 82.2°F (27.9°C) and min 62.4°F (16.9°C). July's advent denotes a minor fluctuation in the average high-temperature to a still warm 82.2°F (27.9°C) from June's 77.2°F (25.1°C). Weather in July »Weather in August
August, the last month of the summer in Rancho Bernardo, is also a moderately hot month, with an average temperature varying between 84.2°F (29°C) and 64.4°F (18°C). August is the month when Rancho Bernardo's temperatures reach their peak, with averages of 84.2°F (29°C) and lows of 64.4°F (18°C). For most parts of August, the heat index is appraised at a tropical 87.8°F (31°C). Weather in August »Weather in September
September, the first month of the autumn in Rancho Bernardo, is still a warm month, with an average temperature varying between 82.6°F (28.1°C) and 63.1°F (17.3°C). The start of September marks an average high-temperature of a still moderately hot 82.6°F (28.1°C), hardly distinguishable from the conditions in August. Weather in September »Weather in October
October, the same as September, is a moderately hot autumn month in Rancho Bernardo, California, with temperature in the range of an average high of 77.4°F (25.2°C) and an average low of 58.1°F (14.5°C). Rancho Bernardo marks the arrival of October with an average high-temperature of a still moderately hot 77.4°F (25.2°C), hardly different from September's 82.6°F (28.1°C). Weather in October »Weather in November
The last month of the autumn, November, is also an agreeable month in Rancho Bernardo, California, with temperature in the range of an average high of 71.4°F (21.9°C) and an average low of 53.1°F (11.7°C). The transition into November involves a small decrease in the average high-temperature, dipping slightly from a moderately hot 77.4°F (25.2°C) in October to an agreeable 71.4°F (21.9°C). Weather in November »Weather in December
The first month of the winter, December, is still a refreshing month in Rancho Bernardo, California, with an average temperature ranging between max 63.9°F (17.7°C) and min 47.7°F (8.7°C). With average high temperatures of 63.9°F (17.7°C) and lows of 47.7°F (8.7°C), December is the coldest month. Weather in December »Updated: Jul 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Throughout the year, there are 54.7 rainfall days, and 8.15" (207mm) of precipitation is accumulated.
The months with the least sunshine are January and December, with an average of 6.7h of sunshine.
January, February, November and December, with an average maximum UV index of 4, are months with the lowest UV index.
The month with the most rainfall is February, when the rain falls for 6.2 days and typically aggregates up to 1.61" (41mm) of precipitation.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from PDT to PST.
May is the most humid month, with an average relative humidity of 68%.
June is the month with the least rainfall. Rain falls for 1.6 days and accumulates 0.08" (2mm) of precipitation.
June has the longest days of the year, with an average of 14h and 18min of daylight.
June through September, with an average maximum UV index of 6, are months with the highest UV index.
July has the most sunshine of the year, with an average of 12h of sunshine.
August, with an average high of 84.2°F (29°C) and a low of 64.4°F (18°C), signifies the warmest month of the year.
With an average relative humidity of 54%, November is the least humid month.
Temperature readings reach their annual highs in December, averaging 63.9°F (17.7°C) and a minimum average of 47.7°F (8.7°C).
The month with the shortest days in Rancho Bernardo is December, with an average of 10h and 0min of daylight.
Average temperature
Rancho Bernardo, CA
The warmest month (with the highest average high temperature) is August (84.2°F).
The month with the lowest average high temperature is December (63.9°F).
The month with the highest average low temperature is August (64.4°F).
The coldest month (with the lowest average low temperature) is February (47.1°F).
Average pressure
Rancho Bernardo, CA
- Average pressure in January:
30.09"Hg - Average pressure in February:
30.04"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.91"Hg - Average pressure in June:
29.87"Hg
- Average pressure in July:
29.9"Hg - Average pressure in August:
29.88"Hg - Average pressure in September:
29.87"Hg - Average pressure in October:
29.93"Hg - Average pressure in November:
30.01"Hg - Average pressure in December:
30.06"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are June and September (29.87"Hg).
Average wind speed
Rancho Bernardo, CA
- Average wind speed in January:
5mph - Average wind speed in February:
5.2mph - Average wind speed in March:
5mph - Average wind speed in April:
5.5mph - Average wind speed in May:
5.3mph - Average wind speed in June:
4.8mph
- Average wind speed in July:
4.7mph - Average wind speed in August:
4.4mph - Average wind speed in September:
4.3mph - Average wind speed in October:
4.3mph - Average wind speed in November:
4.8mph - Average wind speed in December:
5mph
The windiest month (with the highest average wind speed) is April (5.5mph).
The calmest months (with the lowest average wind speed) are September and October (4.3mph).
Average humidity
Rancho Bernardo, CA
The month with the highest relative humidity is May (68%).
The month with the lowest relative humidity is November (54%).
Average rainfall
Rancho Bernardo, CA
- Average rainfall in January:
0.98" - Average rainfall in February:
1.61" - Average rainfall in March:
0.87" - Average rainfall in April:
0.71" - Average rainfall in May:
0.35" - Average rainfall in June:
0.08"
- Average rainfall in July:
0.39" - Average rainfall in August:
0.24" - Average rainfall in September:
0.31" - Average rainfall in October:
0.2" - Average rainfall in November:
0.94" - Average rainfall in December:
1.46"
The wettest month (with the highest rainfall) is February (1.61").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days
Rancho Bernardo, CA
- Average rainfall days in January:
5.4 days - Average rainfall days in February:
6.2 days - Average rainfall days in March:
7.2 days - Average rainfall days in April:
6.2 days - Average rainfall days in May:
4 days - Average rainfall days in June:
1.6 days
- Average rainfall days in July:
4.8 days - Average rainfall days in August:
2.9 days - Average rainfall days in September:
3.8 days - Average rainfall days in October:
2.8 days - Average rainfall days in November:
3.7 days - Average rainfall days in December:
6.1 days
The month with the highest number of rainy days is March (7.2 days).
The month with the least rainy days is June (1.6 days).
Average daylight / Average sunshine
Rancho Bernardo, CA
- Average daylight in January:
10h and 18min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 0min - Average daylight in May:
13h and 54min - Average daylight in June:
14h and 18min
- Average daylight in July:
14h and 6min - Average daylight in August:
13h and 18min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 18min - Average daylight in November:
10h and 30min - Average daylight in December:
10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in January:
6h and 42min - Average sunshine in February:
6h and 48min - Average sunshine in March:
8h and 36min - Average sunshine in April:
10h and 48min - Average sunshine in May:
10h and 54min - Average sunshine in June:
11h and 54min
- Average sunshine in July:
12h and 0min - Average sunshine in August:
11h and 54min - Average sunshine in September:
10h and 18min - Average sunshine in October:
8h and 54min - Average sunshine in November:
7h and 12min - Average sunshine in December:
6h and 42min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 6h and 42min).
Average sunshine days
Rancho Bernardo, CA
- Average sunshine days in January:
24.7 days - Average sunshine days in February:
21.2 days - Average sunshine days in March:
23.6 days - Average sunshine days in April:
23.5 days - Average sunshine days in May:
24.5 days - Average sunshine days in June:
27 days
- Average sunshine days in July:
23.8 days - Average sunshine days in August:
26 days - Average sunshine days in September:
23.9 days - Average sunshine days in October:
26.5 days - Average sunshine days in November:
24.9 days - Average sunshine days in December:
23.5 days
The month with the most sunshine days is June (27 days).
The month with the least sunshine days is February (21.2 days).
Average UV index
Rancho Bernardo, CA
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 4).
Average cloud cover
Rancho Bernardo, CA
The month with the most cloud cover is March (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 7).
Average visibility
Rancho Bernardo, CA
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
