Climate and monthly weather forecastSan Jacinto, CA
Climate and monthly weather forecast
Weather in January
January in San Jacinto, California, is an enjoyable winter month, with an average temperature fluctuating between 42.4°F (5.8°C) and 61°F (16.1°C). The transition from December to January sees an average high-temperature of a still refreshing 61°F (16.1°C), indicating a minor variance from the prior month. Weather in January »Weather in February
The last month of the winter, February, is another refreshing month in San Jacinto, California, with an average temperature fluctuating between 61.2°F (16.2°C) and 41.5°F (5.3°C). Stepping into February, San Jacinto records an average high-temperature of a still enjoyable 61.2°F (16.2°C), almost consistent with January. Weather in February »Weather in March
March, the first month of the spring in San Jacinto, is still a refreshing month, with an average temperature ranging between min 43.3°F (6.3°C) and max 65.1°F (18.4°C). The shift into March records an average high-temperature of a still refreshing 65.1°F (18.4°C), subtly varied from February's 61.2°F (16.2°C). Weather in March »Weather in April
April in San Jacinto, California, is an agreeable spring month, with an average temperature varying between 70.2°F (21.2°C) and 45.7°F (7.6°C). The arrival of April sees a recorded average high-temperature of a pleasant 70.2°F (21.2°C), showing little divergence from the previous month's conditions. Weather in April »Weather in May
The last month of the spring, May, is a warm month in San Jacinto, California, with an average temperature fluctuating between 49.5°F (9.7°C) and 74.8°F (23.8°C). The average high-temperature during May registers at a moderately hot 74.8°F (23.8°C), maintaining a close resemblance to the previous month. Weather in May »Weather in June
The first month of the summer, June, is also a moderately hot month in San Jacinto, California, with an average temperature fluctuating between 84°F (28.9°C) and 54.9°F (12.7°C). With the onset of June, San Jacinto's average high-temperature sees a rise, moving from May's 74.8°F (23.8°C) to a still moderately hot 84°F (28.9°C). Weather in June »Weather in July
July is a hot summer month in San Jacinto, California, with an average temperature varying between 62.2°F (16.8°C) and 89.8°F (32.1°C). With the onset of July, San Jacinto experiences a subtle temperature shift, with the average high-temperature moving from a warm 84°F (28.9°C) in June to a tropical 89.8°F (32.1°C). Weather in July »Weather in August
August, the last month of the summer in San Jacinto, is another hot month, with temperature in the range of an average high of 90.5°F (32.5°C) and an average low of 63.1°F (17.3°C). August, with average temperatures reaching a high of 90.5°F (32.5°C) and a low of 63.1°F (17.3°C), is the warmest month. The heat index in August is estimated at a tropical 91.4°F (33°C). Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in San Jacinto, California, with an average temperature varying between 61°F (16.1°C) and 85.5°F (29.7°C). During September, San Jacinto observes a subtle ascent to a warm 85.5°F (29.7°C) from August's 90.5°F (32.5°C) in the average high-temperature. Weather in September »Weather in October
October, like September, in San Jacinto, California, is a moderately hot autumn month, with an average temperature ranging between min 52.9°F (11.6°C) and max 76.5°F (24.7°C). October's arrival corresponds with a decrease in average high-temperatures, from September's warm 85.5°F (29.7°C) to a still moderately hot 76.5°F (24.7°C). Weather in October »Weather in November
November, the last month of the autumn in San Jacinto, is another comfortable month, with an average temperature varying between 46.6°F (8.1°C) and 67.3°F (19.6°C). San Jacinto's November weather comes with a decrease in average high-temperatures, moving from a warm 76.5°F (24.7°C) in October to a comfortable 67.3°F (19.6°C). Weather in November »Weather in December
The first month of the winter, December, is also a moderate month in San Jacinto, California, with an average temperature fluctuating between 58.6°F (14.8°C) and 41°F (5°C). The month of December sees the lowest average temperatures, reaching 58.6°F (14.8°C) at the peak and 41°F (5°C) at the low. Weather in December »Updated: Aug 4, 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
In San Jacinto, during the entire year, the rain falls for 54 days and collects up to 6.61" (168mm) of precipitation.
January through November are months without snowfall.
In San Jacinto, during the entire year, snow aggregates up to 0.04" (1mm).
February, March and May, with an average relative humidity of 56%, are most humid months.
The month with the most rainfall is February, when the rain falls for 6 days and typically aggregates up to 1.38" (35mm) of precipitation.
The months with the least sunshine are February and December, with an average of 6.7h of sunshine.
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.
The month with the least rainfall is June, when the rain falls for 1.6 days and typically collects 0.04" (1mm) of precipitation.
With an average of 14h and 24min of daylight, June has the longest days of the year.
The months with the most sunshine are June and July, with an average of 12.1h of sunshine.
The month with the highest UV index is July, with an average maximum UV index of 7.
San Jacinto's warmest weather arrives in August, when temperatures average a high of 90.5°F (32.5°C) and a low of 63.1°F (17.3°C).
August is the least humid month, with an average relative humidity of 41%.
November and December, with an average maximum UV index of 3, are months with the lowest UV index.
San Jacinto experiences its lowest temperatures in December, with an average peak of 58.6°F (14.8°C) and a low of 41°F (5°C).
December is the only month when snow falls.
December is the month with the most snowfall. Snow falls for 0.1 days and accumulates 0.04" (1mm) of snow.
December has the shortest days of the year, with an average of 10h and 0min of daylight.
Average temperature
San Jacinto, CA
The warmest month (with the highest average high temperature) is August (90.5°F).
The month with the lowest average high temperature is December (58.6°F).
The month with the highest average low temperature is August (63.1°F).
The coldest month (with the lowest average low temperature) is December (41°F).
Average pressure
San Jacinto, CA
- Average pressure in January:
30.09"Hg - Average pressure in February:
30.03"Hg - Average pressure in March:
30"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.88"Hg - Average pressure in June:
29.84"Hg
- Average pressure in July:
29.87"Hg - Average pressure in August:
29.86"Hg - Average pressure in September:
29.86"Hg - Average pressure in October:
29.93"Hg - Average pressure in November:
30.02"Hg - Average pressure in December:
30.06"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed
San Jacinto, CA
- Average wind speed in January:
5.6mph - Average wind speed in February:
5.3mph - Average wind speed in March:
5.7mph - Average wind speed in April:
6.2mph - Average wind speed in May:
6mph - Average wind speed in June:
5.6mph
- Average wind speed in July:
5.2mph - Average wind speed in August:
4.8mph - Average wind speed in September:
4.7mph - Average wind speed in October:
5mph - Average wind speed in November:
5.4mph - Average wind speed in December:
5.5mph
The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest month (with the lowest average wind speed) is September (4.7mph).
Average humidity
San Jacinto, CA
The months with the highest relative humidity are February, March and May (56%).
The month with the lowest relative humidity is August (41%).
Average rainfall
San Jacinto, CA
- Average rainfall in January:
0.75" - Average rainfall in February:
1.38" - Average rainfall in March:
0.71" - Average rainfall in April:
0.67" - Average rainfall in May:
0.24" - Average rainfall in June:
0.04"
- Average rainfall in July:
0.39" - Average rainfall in August:
0.28" - Average rainfall in September:
0.16" - Average rainfall in October:
0.16" - Average rainfall in November:
0.63" - Average rainfall in December:
1.22"
The wettest month (with the highest rainfall) is February (1.38").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days
San Jacinto, CA
- Average rainfall days in January:
5.3 days - Average rainfall days in February:
6 days - Average rainfall days in March:
7.4 days - Average rainfall days in April:
6.2 days - Average rainfall days in May:
4.8 days - Average rainfall days in June:
1.6 days
- Average rainfall days in July:
4.7 days - Average rainfall days in August:
3.7 days - Average rainfall days in September:
2.9 days - Average rainfall days in October:
2.5 days - Average rainfall days in November:
2.9 days - Average rainfall days in December:
6 days
The month with the highest number of rainy days is March (7.4 days).
The month with the least rainy days is June (1.6 days).
Average snowfall
San Jacinto, CA
The month with the highest snowfall is December (0.04").
The months with the least snowfall are January, February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days
San Jacinto, CA
- Average snowfall days in January:
0 days - Average snowfall days in February:
0 days - Average snowfall days in March:
0 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0 days - Average snowfall days in December:
0.1 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight / Average sunshine
San Jacinto, CA
- Average daylight in January:
10h and 12min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 6min - Average daylight in May:
13h and 54min - Average daylight in June:
14h and 24min
- Average daylight in July:
14h and 6min - Average daylight in August:
13h and 24min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 18min - Average daylight in November:
10h and 24min - Average daylight in December:
10h and 0min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in January:
6h and 48min - Average sunshine in February:
6h and 42min - Average sunshine in March:
8h and 36min - Average sunshine in April:
11h and 0min - Average sunshine in May:
11h and 30min - Average sunshine in June:
12h and 6min
- Average sunshine in July:
12h and 6min - Average sunshine in August:
11h and 54min - Average sunshine in September:
10h and 30min - Average sunshine in October:
9h and 0min - Average sunshine in November:
7h and 12min - Average sunshine in December:
6h and 42min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The months with the least sunshine are February and December (Average sunshine: 6h and 42min).
Average sunshine days
San Jacinto, CA
- Average sunshine days in January:
25.1 days - Average sunshine days in February:
20.9 days - Average sunshine days in March:
22.1 days - Average sunshine days in April:
23 days - Average sunshine days in May:
25 days - Average sunshine days in June:
27.3 days
- Average sunshine days in July:
23.5 days - Average sunshine days in August:
24.4 days - Average sunshine days in September:
24.5 days - Average sunshine days in October:
27.4 days - Average sunshine days in November:
25.7 days - Average sunshine days in December:
24.2 days
The month with the most sunshine days is October (27.4 days).
The month with the least sunshine days is February (20.9 days).
Average UV index
San Jacinto, CA
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are November and December (UV index 3).
Average cloud cover
San Jacinto, CA
The months with the most cloud cover are March and December (Cloud cover 25).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility
San Jacinto, 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).
