Climate and monthly weather forecastOpal Cliffs, CA
Climate and monthly weather forecast
Weather in January
January, the same as December, in Opal Cliffs, California, is a moderate winter month, with an average temperature varying between 58.6°F (14.8°C) and 46.9°F (8.3°C). The start of January sees the average high-temperature at a still refreshing 58.6°F (14.8°C), showing little difference from December's 57.2°F (14°C). Weather in January »Weather in February
February, the last month of the winter in Opal Cliffs, is another mild month, with an average temperature varying between 59.4°F (15.2°C) and 45.5°F (7.5°C). As February unfolds, the average high-temperature reaches a still mild 59.4°F (15.2°C), hinting at a slight fluctuation from the previous month. Weather in February »Weather in March
March, the first month of the spring in Opal Cliffs, is still a refreshing month, with temperature in the range of an average high of 60.4°F (15.8°C) and an average low of 45.9°F (7.7°C). The transition from February to March sees average high-temperatures adjusting to a still refreshing 60.4°F (15.8°C), from a not significantly different 59.4°F (15.2°C). Weather in March »Weather in April
April is an enjoyable spring month in Opal Cliffs, California, with an average temperature fluctuating between 63.1°F (17.3°C) and 47.3°F (8.5°C). The transition from March to April sees an average high-temperature of a comfortable 63.1°F (17.3°C), indicating a minor variance from the prior month. Weather in April »Weather in May
The last month of the spring, May, is another comfortable month in Opal Cliffs, California, with an average temperature varying between 49.1°F (9.5°C) and 64.9°F (18.3°C). The average high-temperature is a still refreshing 64.9°F (18.3°C) in May, hardly different from the 63.1°F (17.3°C) recorded in April. Weather in May »Weather in June
The first month of the summer, June, is an agreeable month in Opal Cliffs, California, with temperature in the range of an average high of 70°F (21.1°C) and an average low of 51.4°F (10.8°C). Stepping into June, Opal Cliffs records an average high-temperature of a pleasant 70°F (21.1°C), almost consistent with May. Weather in June »Weather in July
July, like June, is an agreeable summer month in Opal Cliffs, California, with an average temperature varying between 72.5°F (22.5°C) and 53.4°F (11.9°C). Opal Cliffs, California, records an average high-temperature of a still pleasant 72.5°F (22.5°C) in July, maintaining a close correlation with June's 70°F (21.1°C). Weather in July »Weather in August
August, the last month of the summer in Opal Cliffs, is another pleasant month, with an average temperature ranging between max 73°F (22.8°C) and min 54.7°F (12.6°C). August and September represent the warmest period, with an average high-temperature of 73°F (22.8°C). Weather in August »Weather in September
September, the first month of the autumn in Opal Cliffs, is also an agreeable month, with an average temperature fluctuating between 73°F (22.8°C) and 55.2°F (12.9°C). The peak of Opal Cliffs's temperatures is noted during August and September, averaging a high-temperature of 73°F (22.8°C). Weather in September »Weather in October
October, the same as September, in Opal Cliffs, California, is an agreeable autumn month, with temperature in the range of an average high of 69.4°F (20.8°C) and an average low of 53.8°F (12.1°C). The beginning of October records an average high-temperature of a still pleasant 69.4°F (20.8°C), almost echoing the conditions of the previous month. Weather in October »Weather in November
November, the last month of the autumn in Opal Cliffs, is also an enjoyable month, with an average temperature ranging between min 49.6°F (9.8°C) and max 62.8°F (17.1°C). November's arrival subtly correlates with a reduction in the average high-temperature, down from a pleasant 69.4°F (20.8°C) in October to a refreshing 62.8°F (17.1°C). Weather in November »Weather in December
December, the first month of the winter in Opal Cliffs, is still a mild month, with temperature in the range of an average low of 46.2°F (7.9°C) and an average high of 57.2°F (14°C). Opal Cliffs's coldest weather arrives in December, when temperatures average a high of 57.2°F (14°C) and a low of 46.2°F (7.9°C). Weather in December »Updated: Aug 16, 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 Opal Cliffs, during the entire year, the rain falls for 77.9 days and collects up to 14.45" (367mm) of precipitation.
February and November, with an average maximum UV index of 3, are months with the lowest UV index.
March is the most humid month, with an average relative humidity of 75%.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Opal Cliffs, 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 coldest seawater is April, with an average ocean temperature of 53.8°F (12.1°C).
The month with the longest days is June, with an average of 14h and 42min of daylight.
June through September, with an average maximum UV index of 5, are months with the highest UV index.
The months with the least rainfall are July and August Rain falls for 2.8 days and accumulates 0.04" (1mm) of rain.
July has the most sunshine of the year, with an average of 11.7h of sunshine.
Opal Cliffs sees the average highest temperatures during the months of August and September, peaking at 73°F (22.8°C).
The months with the warmest seawater are August and September, with an average ocean temperature of 58.1°F (14.5°C).
With an average relative humidity of 68%, October is the least humid month.
In Opal Cliffs, the lowest temperatures are generally noted in December, averaging a high of 57.2°F (14°C) and a low of 46.2°F (7.9°C).
The month with the most rainfall is December, when the rain falls for 10.3 days and typically aggregates up to 2.8" (71mm) of precipitation.
The month with the shortest days is December, with an average of 9h and 42min of daylight.
December has the least sunshine of the year, with an average of 5.8h of sunshine.
Average temperature
Opal Cliffs, CA
The warmest months (with the highest average high temperature) are August and September (73°F).
The month with the lowest average high temperature is December (57.2°F).
The month with the highest average low temperature is September (55.2°F).
The coldest month (with the lowest average low temperature) is February (45.5°F).
Average pressure
Opal Cliffs, CA
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.08"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
30.04"Hg - Average pressure in May:
29.99"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.94"Hg - Average pressure in August:
29.93"Hg - Average pressure in September:
29.92"Hg - Average pressure in October:
29.98"Hg - Average pressure in November:
30.07"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.92"Hg).
Average wind speed
Opal Cliffs, CA
- Average wind speed in January:
5.7mph - Average wind speed in February:
6.8mph - Average wind speed in March:
7mph - Average wind speed in April:
7.4mph - Average wind speed in May:
7.2mph - Average wind speed in June:
6.8mph
- Average wind speed in July:
5.5mph - Average wind speed in August:
5.5mph - Average wind speed in September:
5.7mph - Average wind speed in October:
5.7mph - Average wind speed in November:
5.7mph - Average wind speed in December:
6.2mph
The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity
Opal Cliffs, CA
The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is October (68%).
Average rainfall
Opal Cliffs, CA
- Average rainfall in January:
2.56" - Average rainfall in February:
2.64" - Average rainfall in March:
2.48" - Average rainfall in April:
0.94" - Average rainfall in May:
0.67" - Average rainfall in June:
0.08"
- Average rainfall in July:
0.04" - Average rainfall in August:
0.04" - Average rainfall in September:
0.12" - Average rainfall in October:
0.47" - Average rainfall in November:
1.61" - Average rainfall in December:
2.8"
The wettest month (with the highest rainfall) is December (2.8").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days
Opal Cliffs, CA
- Average rainfall days in January:
9.3 days - Average rainfall days in February:
8.8 days - Average rainfall days in March:
13.4 days - Average rainfall days in April:
9 days - Average rainfall days in May:
6.5 days - Average rainfall days in June:
2.8 days
- Average rainfall days in July:
2.8 days - Average rainfall days in August:
1.2 days - Average rainfall days in September:
2.7 days - Average rainfall days in October:
4.5 days - Average rainfall days in November:
6.6 days - Average rainfall days in December:
10.3 days
The month with the highest number of rainy days is March (13.4 days).
The month with the least rainy days is August (1.2 days).
Average sea temperature
Opal Cliffs, CA
The best months for swimming (with the highest average sea temperature) are August and September (58.1°F).
The coldest month (with the lowest average sea temperature) is April (53.8°F).
Average daylight / Average sunshine
Opal Cliffs, CA
- Average daylight in January:
10h and 0min - Average daylight in February:
10h and 54min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 12min - Average daylight in May:
14h and 12min - Average daylight in June:
14h and 42min
- Average daylight in July:
14h and 24min - Average daylight in August:
13h and 30min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 12min - Average daylight in November:
10h and 12min - Average daylight in December:
9h and 42min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in January:
6h and 6min - Average sunshine in February:
6h and 12min - Average sunshine in March:
7h and 36min - Average sunshine in April:
10h and 0min - Average sunshine in May:
10h and 18min - Average sunshine in June:
11h and 30min
- Average sunshine in July:
11h and 42min - Average sunshine in August:
11h and 36min - Average sunshine in September:
10h and 54min - Average sunshine in October:
7h and 0min - Average sunshine in November:
6h and 30min - Average sunshine in December:
5h and 48min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days
Opal Cliffs, CA
- Average sunshine days in January:
20.5 days - Average sunshine days in February:
17.8 days - Average sunshine days in March:
16.4 days - Average sunshine days in April:
19.9 days - Average sunshine days in May:
22.1 days - Average sunshine days in June:
25.3 days
- Average sunshine days in July:
27.4 days - Average sunshine days in August:
27.8 days - Average sunshine days in September:
26.3 days - Average sunshine days in October:
25.3 days - Average sunshine days in November:
22 days - Average sunshine days in December:
19.5 days
The month with the most sunshine days is August (27.8 days).
The month with the least sunshine days is March (16.4 days).
Average UV index
Opal Cliffs, CA
The months with the highest UV index are June, July, August and September (UV index 5).
The months with the lowest UV index are February and November (UV index 3).
Average cloud cover
Opal Cliffs, CA
The month with the most cloud cover is March (Cloud cover 38).
The months with the least cloud cover are July and September (Cloud cover 15).
Average visibility
Opal Cliffs, 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).
