Monthly outlook for Opal Cliffs, CA: average high 75.6°, average low 59.1°. That is 3.3° above the climate normal for August. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 0 days and 0.1 inches. The warmest day looks like 9 August (90.6°), the coolest 11 August (57°).
75.6°/59.1°
Average high / low
+3.3°
Above normal
0 / 0
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
74.1°
69.8°
+2.4°
18 August – 27 August
78.1°
69.5°
+4.8°
28 August – 6 September
at normal
70.9°
—
August records over 66 years
99.1°14 August 2020All-time high
51.1°1 August 2011All-time low
Climate normals and records are computed from the nearest reference point — Capitola (1 mi).
Sun, 0991° / 63°0
91 °
Opal Cliffs, Sunday, 9 August
Clear. High 91°, low 63°.
Pressure29.85 inHg
Wind6.6 mph S
Humidity51%
Visibility5.3 mi
Dew point54°
Mon, 1074° / 58°0
74 °
Opal Cliffs, Monday, 10 August
Overcast. High 74°, low 58°.
Pressure29.91 inHg
Wind6.1 mph S
Humidity54%
Visibility5.3 mi
Dew point53°
Tue, 1174° / 57°0
74 °
Opal Cliffs, Tuesday, 11 August
Clear. High 74°, low 57°.
Pressure29.97 inHg
Wind7 mph S
Humidity52%
Visibility6.2 mi
Dew point52°
Wed, 1270° / 58°0
70 °
Opal Cliffs, Wednesday, 12 August
Overcast. High 70°, low 58°.
Pressure29.91 inHg
Wind7.5 mph S
Humidity63%
Visibility6.2 mi
Dew point55°
Thu, 1368° / 59°0
68 °
Opal Cliffs, Thursday, 13 August
Overcast. High 68°, low 59°.
Pressure29.91 inHg
Wind7.6 mph S
Humidity67%
Visibility—
Dew point56°
Fri, 1467° / 60°0
67 °
Opal Cliffs, Friday, 14 August
Overcast. High 67°, low 60°.
Pressure29.97 inHg
Wind5.6 mph SW
Humidity71%
Visibility—
Dew point56°
Sat, 1571° / 57°0
71 °
Opal Cliffs, Saturday, 15 August
Clear. High 71°, low 57°.
Pressure30.03 inHg
Wind8.5 mph SW
Humidity55%
Visibility—
Dew point52°
Sun, 1674° / 57°0
74 °
Opal Cliffs, Sunday, 16 August
Clear. High 74°, low 57°.
Pressure30.03 inHg
Wind9.2 mph SW
Humidity50%
Visibility—
Dew point52°
Mon, 1773° / 59°0
73 °
Opal Cliffs, Monday, 17 August
Overcast. High 73°, low 59°.
Pressure30.09 inHg
Wind7.8 mph SW
Humidity52%
Visibility—
Dew point53°
Tue, 1882° / 61°0
82 °
Opal Cliffs, Tuesday, 18 August
Clear. High 82°, low 61°.
Pressure30.00 inHg
Wind7.4 mph SW
Humidity38%
Visibility—
Dew point52°
Wed, 1985° / 59°0
85 °
Opal Cliffs, Wednesday, 19 August
Clear. High 85°, low 59°.
Pressure29.94 inHg
Wind7.9 mph NW
Humidity32%
Visibility—
Dew point47°
Thu, 2079° / 59°0
79 °
Opal Cliffs, Thursday, 20 August
Clear. High 79°, low 59°.
Pressure29.94 inHg
Wind8.1 mph S
Humidity51%
Visibility—
Dew point57°
Fri, 2175° / 59°0
75 °
Opal Cliffs, Friday, 21 August
Clear. High 75°, low 59°.
Pressure29.91 inHg
Wind7.9 mph SW
Humidity52%
Visibility—
Dew point55°
Sat, 2272° / 59°0
72 °
Opal Cliffs, Saturday, 22 August
Overcast. High 72°, low 59°.
Pressure29.88 inHg
Wind7.6 mph SW
Humidity58%
Visibility—
Dew point55°
Sun, 2375° / 59°0
75 °
Opal Cliffs, Sunday, 23 August
Overcast. High 75°, low 59°.
Pressure29.91 inHg
Wind8.7 mph SW
Humidity56%
Visibility—
Dew point56°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2470° / 58°0
70 °
Opal Cliffs, Monday, 24 August
Climate normal for this date — 60-year average.
Average high70°
Average low58°
Average precipitation0 in
Chance of precipitation2%
Record high82° (2010)
Record low53° (2018)
Tue, 2569° / 58°0
69 °
Opal Cliffs, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high69°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high81° (2024)
Record low53° (2005)
Wed, 2670° / 58°0
70 °
Opal Cliffs, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high70°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high86° (2024)
Record low54° (2002)
Thu, 2771° / 58°0
71 °
Opal Cliffs, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high71°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high87° (2023)
Record low53° (1973)
Fri, 2871° / 59°0
71 °
Opal Cliffs, Friday, 28 August
Climate normal for this date — 60-year average.
Average high71°
Average low59°
Average precipitation0 in
Chance of precipitation0%
Record high87° (2023)
Record low54° (1973)
Sat, 2971° / 59°0
71 °
Opal Cliffs, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high71°
Average low59°
Average precipitation0 in
Chance of precipitation2%
Record high87° (2023)
Record low53° (1960)
Sun, 3071° / 59°0
71 °
Opal Cliffs, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high71°
Average low59°
Average precipitation0 in
Chance of precipitation0%
Record high92° (2025)
Record low53° (1960)
Mon, 3170° / 58°0
70 °
Opal Cliffs, Monday, 31 August
Climate normal for this date — 60-year average.
Average high70°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high97° (2025)
Record low53° (2018)
Tue, 0171° / 58°0
71 °
Opal Cliffs, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high71°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high96° (2017)
Record low51° (2011)
Wed, 0271° / 59°0
71 °
Opal Cliffs, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high71°
Average low59°
Average precipitation0 in
Chance of precipitation2%
Record high100° (2017)
Record low54° (1973)
Thu, 0371° / 58°0
71 °
Opal Cliffs, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high71°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high89° (2022)
Record low54° (1970)
Fri, 0471° / 58°0
71 °
Opal Cliffs, Friday, 4 September
Climate normal for this date — 60-year average.
Average high71°
Average low58°
Average precipitation0 in
Chance of precipitation0%
Record high87° (2022)
Record low53° (1973)
Sat, 0572° / 59°0
72 °
Opal Cliffs, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high72°
Average low59°
Average precipitation0 in
Chance of precipitation0%
Record high98° (2022)
Record low52° (1965)
Sun, 0672° / 59°0
72 °
Opal Cliffs, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high72°
Average low59°
Average precipitation0 in
Chance of precipitation0%
Record high99° (2020)
Record low53° (2001)
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Opal Cliffs, CA are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Opal Cliffs, CA since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.