Climate and monthly weather forecastJamul, CA
Climate and monthly weather forecast
Weather in January
January, the same as December, is another enjoyable winter month in Jamul, California, with an average temperature fluctuating between 64.6°F (18.1°C) and 47.8°F (8.8°C). The introduction of January sees an average high-temperature of a still refreshing 64.6°F (18.1°C), hardly deviating from December. Weather in January »Weather in February
The last month of the winter, February, is also an enjoyable month in Jamul, California, with temperature in the range of an average high of 64.4°F (18°C) and an average low of 47.3°F (8.5°C). Jamul indicates an average high-temperature of a still refreshing 64.4°F (18°C) in February, showing minor variation from January's 64.6°F (18.1°C). Weather in February »Weather in March
March, the first month of the spring in Jamul, is still a refreshing month, with an average temperature fluctuating between 66.7°F (19.3°C) and 48.4°F (9.1°C). March's commencement is accompanied by an average high-temperature of a still enjoyable 66.7°F (19.3°C), diverging marginally from February's 64.4°F (18°C). Weather in March »Weather in April
April in Jamul, California, is an agreeable spring month, with temperature in the range of an average high of 69.6°F (20.9°C) and an average low of 50.9°F (10.5°C). Welcoming April, Jamul notes an average high-temperature of an agreeable 69.6°F (20.9°C), nearly consistent with March's 66.7°F (19.3°C). Weather in April »Weather in May
The last month of the spring, May, is also an agreeable month in Jamul, California, with an average temperature fluctuating between 53.6°F (12°C) and 71.8°F (22.1°C). The commencement of May notes an average high-temperature of a still agreeable 71.8°F (22.1°C), exhibiting little difference from the previous month. Weather in May »Weather in June
The first month of the summer, June, is a warm month in Jamul, California, with an average temperature ranging between min 57.9°F (14.4°C) and max 77.5°F (25.3°C). June signifies a subtle uplift in the average high-temperature, adjusting from a pleasant 71.8°F (22.1°C) in May to a moderately hot 77.5°F (25.3°C). Weather in June »Weather in July
July, like June, in Jamul, California, is a moderately hot summer month, with temperature in the range of an average high of 82°F (27.8°C) and an average low of 64.6°F (18.1°C). With the arrival of July, Jamul's average high-temperature registers at a still warm 82°F (27.8°C), indicating a subtle variation from the previous month. Weather in July »Weather in August
August, the last month of the summer in Jamul, is another warm month, with an average temperature fluctuating between 66.2°F (19°C) and 84.2°F (29°C). The average temperatures reach their apex in August, averaging 84.2°F (29°C) at the high end and 66.2°F (19°C) at the low end. The heat index value for August is calculated to be a hot 87.8°F (31°C). Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Jamul, California, with temperature in the range of an average high of 82.6°F (28.1°C) and an average low of 64°F (17.8°C). During September, Jamul records an average high-temperature of a still warm 82.6°F (28.1°C), marking a slight divergence from August's 84.2°F (29°C). Weather in September »Weather in October
October, the same as September, is another warm autumn month in Jamul, California, with an average temperature ranging between max 76.1°F (24.5°C) and min 58.6°F (14.8°C). With the commencement of October, Jamul records a moderate temperature decline, with the average high easing from September's moderately hot 82.6°F (28.1°C) to a still warm 76.1°F (24.5°C). Weather in October »Weather in November
The last month of the autumn, November, is also an agreeable month in Jamul, California, with an average temperature ranging between max 70°F (21.1°C) and min 52.7°F (11.5°C). With the arrival of November, Jamul notices a mild change in the average high-temperature, sliding from October's warm 76.1°F (24.5°C) to a pleasant 70°F (21.1°C). Weather in November »Weather in December
The first month of the winter, December, is still a refreshing month in Jamul, California, with an average temperature ranging between max 63°F (17.2°C) and min 47.3°F (8.5°C). In Jamul, December is the month with the lowest recorded average temperatures, measuring a high of 63°F (17.2°C) and a low of 47.3°F (8.5°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Jamul, 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°F).
The month with the highest average low temperature is August (66.2°F).
The coldest months (with the lowest average low temperature) are February and December (47.3°F).
Average pressure
Jamul, CA
- Average pressure in January:
30.08"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 (30.08"Hg).
The months with the lowest atmospheric pressure are June and September (29.87"Hg).
Average wind speed
Jamul, CA
- Average wind speed in January:
5mph - Average wind speed in February:
5.2mph - Average wind speed in March:
5.2mph - Average wind speed in April:
5.5mph - Average wind speed in May:
5.5mph - Average wind speed in June:
5mph
- 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 months (with the highest average wind speed) are April and May (5.5mph).
The calmest months (with the lowest average wind speed) are September and October (4.3mph).
Average humidity
Jamul, CA
The month with the highest relative humidity is May (65%).
The month with the lowest relative humidity is November (52%).
Average rainfall
Jamul, CA
- Average rainfall in January:
1.1" - Average rainfall in February:
1.81" - Average rainfall in March:
0.91" - Average rainfall in April:
0.55" - Average rainfall in May:
0.35" - Average rainfall in June:
0.08"
- Average rainfall in July:
0.51" - Average rainfall in August:
0.47" - Average rainfall in September:
0.39" - Average rainfall in October:
0.24" - Average rainfall in November:
0.91" - Average rainfall in December:
1.34"
The wettest month (with the highest rainfall) is February (1.81").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days
Jamul, CA
- Average rainfall days in January:
5.7 days - Average rainfall days in February:
6.7 days - Average rainfall days in March:
7.7 days - Average rainfall days in April:
6.3 days - Average rainfall days in May:
4.3 days - Average rainfall days in June:
1.3 days
- Average rainfall days in July:
5.8 days - Average rainfall days in August:
4.3 days - Average rainfall days in September:
4.6 days - Average rainfall days in October:
3.5 days - Average rainfall days in November:
4.2 days - Average rainfall days in December:
6.2 days
The month with the highest number of rainy days is March (7.7 days).
The month with the least rainy days is June (1.3 days).
Average daylight / Average sunshine
Jamul, 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 24min - 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 54min - Average sunshine in February:
6h and 54min - Average sunshine in March:
8h and 42min - Average sunshine in April:
11h and 6min - Average sunshine in May:
11h and 24min - Average sunshine in June:
12h and 6min
- Average sunshine in July:
12h and 6min - Average sunshine in August:
12h and 0min - Average sunshine in September:
10h and 24min - Average sunshine in October:
9h and 12min - Average sunshine in November:
7h and 18min - Average sunshine in December:
6h and 42min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days
Jamul, CA
- Average sunshine days in January:
24.5 days - Average sunshine days in February:
21 days - Average sunshine days in March:
22.6 days - Average sunshine days in April:
23.2 days - Average sunshine days in May:
24.9 days - Average sunshine days in June:
27.8 days
- Average sunshine days in July:
20.3 days - Average sunshine days in August:
21.8 days - Average sunshine days in September:
22.5 days - Average sunshine days in October:
25.9 days - Average sunshine days in November:
25.1 days - Average sunshine days in December:
23.4 days
The month with the most sunshine days is June (27.8 days).
The month with the least sunshine days is July (20.3 days).
Average UV index
Jamul, CA
The months with the highest UV index are June, July, August and September (UV index 6).
The month with the lowest UV index is December (UV index 3).
Average cloud cover
Jamul, CA
The months with the most cloud cover are March and December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility
Jamul, 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).





