Monthly outlook for Chappo, CA: average high 83.1°, average low 67.8°. That is 1.8° 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 (94.3°), the coolest 14 August (65.4°).
83.1°/67.8°
Average high / low
+1.8°
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
84°
80°
+2.2°
18 August – 27 August
81.6°
80.2°
+0.8°
28 August – 6 September
at normal
81.6°
—
August records over 66 years
94.5°31 August 2017All-time high
54°26 August 2024All-time low
Climate normals and records are computed from the nearest reference point — Oceanside (6 mi).
Sun, 0994° / 71°0.03
94 °
Chappo, Sunday, 9 August
Light rain. High 94°, low 71°.
Pressure29.83 inHg
Wind10.7 mph SW
Humidity52%
Visibility6.2 mi
Dew point63°
Mon, 1083° / 69°0
83 °
Chappo, Monday, 10 August
Mostly clear. High 83°, low 69°.
Pressure29.91 inHg
Wind11.8 mph SW
Humidity52%
Visibility6.2 mi
Dew point62°
Tue, 1183° / 68°0
83 °
Chappo, Tuesday, 11 August
Overcast. High 83°, low 68°.
Pressure29.97 inHg
Wind10.4 mph SW
Humidity50%
Visibility6.2 mi
Dew point61°
Wed, 1282° / 67°0
82 °
Chappo, Wednesday, 12 August
Partly cloudy. High 82°, low 67°.
Pressure29.88 inHg
Wind10.8 mph SW
Humidity52%
Visibility6.2 mi
Dew point61°
Thu, 1380° / 66°0
80 °
Chappo, Thursday, 13 August
Overcast. High 80°, low 66°.
Pressure29.91 inHg
Wind12.2 mph SW
Humidity58%
Visibility—
Dew point60°
Fri, 1479° / 65°0
79 °
Chappo, Friday, 14 August
Overcast. High 79°, low 65°.
Pressure29.97 inHg
Wind10.1 mph W
Humidity56%
Visibility—
Dew point60°
Sat, 1582° / 66°0
82 °
Chappo, Saturday, 15 August
Partly cloudy. High 82°, low 66°.
Pressure29.97 inHg
Wind13.2 mph W
Humidity54%
Visibility—
Dew point61°
Sun, 1684° / 67°0
84 °
Chappo, Sunday, 16 August
Overcast. High 84°, low 67°.
Pressure30.00 inHg
Wind12.2 mph SW
Humidity51%
Visibility—
Dew point60°
Mon, 1784° / 67°0
84 °
Chappo, Monday, 17 August
Clear. High 84°, low 67°.
Pressure30.03 inHg
Wind12.8 mph W
Humidity49%
Visibility—
Dew point60°
Tue, 1886° / 68°0
86 °
Chappo, Tuesday, 18 August
Clear. High 86°, low 68°.
Pressure29.94 inHg
Wind11.9 mph SW
Humidity47%
Visibility—
Dew point60°
Wed, 1984° / 69°0
84 °
Chappo, Wednesday, 19 August
Overcast. High 84°, low 69°.
Pressure29.88 inHg
Wind10.8 mph SW
Humidity51%
Visibility—
Dew point62°
Thu, 2082° / 68°0
82 °
Chappo, Thursday, 20 August
Partly cloudy. High 82°, low 68°.
Pressure29.88 inHg
Wind11.2 mph SW
Humidity60%
Visibility—
Dew point64°
Fri, 2180° / 68°0
80 °
Chappo, Friday, 21 August
Overcast. High 80°, low 68°.
Pressure29.88 inHg
Wind10.2 mph SW
Humidity61%
Visibility—
Dew point64°
Sat, 2279° / 68°0.01
79 °
Chappo, Saturday, 22 August
Light rain. High 79°, low 68°.
Pressure29.88 inHg
Wind9.4 mph SW
Humidity65%
Visibility—
Dew point64°
Sun, 2379° / 67°0
79 °
Chappo, Sunday, 23 August
Mostly clear. High 79°, low 67°.
Pressure29.88 inHg
Wind12 mph SW
Humidity64%
Visibility—
Dew point65°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2480° / 66°0
80 °
Chappo, Monday, 24 August
Climate normal for this date — 60-year average.
Average high80°
Average low66°
Average precipitation0 in
Chance of precipitation0%
Record high90° (1985)
Record low60° (1973)
Tue, 2581° / 66°0
81 °
Chappo, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high81°
Average low66°
Average precipitation0 in
Chance of precipitation2%
Record high93° (1985)
Record low57° (2024)
Wed, 2681° / 66°0
81 °
Chappo, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high81°
Average low66°
Average precipitation0 in
Chance of precipitation0%
Record high92° (1981)
Record low54° (2024)
Thu, 2782° / 67°0
82 °
Chappo, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high82°
Average low67°
Average precipitation0 in
Chance of precipitation0%
Record high93° (2009)
Record low58° (1973)
Fri, 2882° / 67°0
82 °
Chappo, Friday, 28 August
Climate normal for this date — 60-year average.
Average high82°
Average low67°
Average precipitation0 in
Chance of precipitation0%
Record high92° (2015)
Record low60° (2002)
Sat, 2982° / 67°0
82 °
Chappo, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high82°
Average low67°
Average precipitation0 in
Chance of precipitation0%
Record high93° (1998)
Record low58° (2010)
Sun, 3081° / 67°0
81 °
Chappo, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high81°
Average low67°
Average precipitation0 in
Chance of precipitation0%
Record high94° (1967)
Record low58° (1964)
Mon, 3181° / 66°0
81 °
Chappo, Monday, 31 August
Climate normal for this date — 60-year average.
Average high81°
Average low66°
Average precipitation0 in
Chance of precipitation0%
Record high94° (2017)
Record low59° (1966)
Tue, 0181° / 66°0.01
81 °
Chappo, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high81°
Average low66°
Average precipitation0.01 in
Chance of precipitation2%
Record high95° (1987)
Record low59° (1973)
Wed, 0281° / 67°0
81 °
Chappo, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high81°
Average low67°
Average precipitation0 in
Chance of precipitation2%
Record high91° (1982)
Record low59° (1964)
Thu, 0382° / 67°0
82 °
Chappo, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high82°
Average low67°
Average precipitation0 in
Chance of precipitation2%
Record high96° (1988)
Record low59° (1973)
Fri, 0482° / 67°0
82 °
Chappo, Friday, 4 September
Climate normal for this date — 60-year average.
Average high82°
Average low67°
Average precipitation0 in
Chance of precipitation2%
Record high103° (2022)
Record low58° (1999)
Sat, 0582° / 67°0
82 °
Chappo, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high82°
Average low67°
Average precipitation0 in
Chance of precipitation3%
Record high99° (2024)
Record low56° (1973)
Sun, 0682° / 67°0.01
82 °
Chappo, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high82°
Average low67°
Average precipitation0.01 in
Chance of precipitation3%
Record high100° (2020)
Record low58° (1970)
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 Chappo, 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 Chappo, 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.