Monthly outlook for Oceanside, CA: average high 77.4°, average low 64.9°. That is 1.8° above the climate normal for October. Precipitation is expected on 3 days (about 1.6 inches), against a normal of 2 days and 0.4 inches. The warmest day looks like 17 October (91.4°), the coolest 13 October (52.2°).
77.4°/64.9°
Average high / low
+1.8°
Above normal
3 / 2
Wet days / normal
1.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
10 October – 19 October
77.8°
74.5°
+1.9°
20 October – 29 October
76.6°
73°
+2°
30 October – 8 November
at normal
70.8°
—
October records over 66 years
102.6°24 October 2017All-time high
38.5°30 October 1971All-time low
Sun, 1173° / 62°1.11
73 °
Oceanside, Sunday, 11 October
Heavy rain. High 73°, low 62°.
Pressure29.74 inHg
Wind8.5 mph SW
Humidity71%
Visibility6.2 mi
Dew point58°
Mon, 1268° / 57°0.3
68 °
Oceanside, Monday, 12 October
Light rain. High 68°, low 57°.
Pressure29.91 inHg
Wind9.5 mph SW
Humidity71%
Visibility5.7 mi
Dew point56°
Tue, 1369° / 52°0
69 °
Oceanside, Tuesday, 13 October
Mostly clear. High 69°, low 52°.
Pressure30.00 inHg
Wind3.2 mph SW
Humidity53%
Visibility6.2 mi
Dew point51°
Wed, 1472° / 53°0
72 °
Oceanside, Wednesday, 14 October
Clear. High 72°, low 53°.
Pressure30.03 inHg
Wind5.1 mph W
Humidity60%
Visibility6.2 mi
Dew point56°
Thu, 1577° / 57°0
77 °
Oceanside, Thursday, 15 October
Clear. High 77°, low 57°.
Pressure30.00 inHg
Wind6.2 mph SW
Humidity57%
Visibility—
Dew point56°
Fri, 1687° / 68°0
87 °
Oceanside, Friday, 16 October
Clear. High 87°, low 68°.
Pressure29.94 inHg
Wind12.4 mph W
Humidity22%
Visibility—
Dew point40°
Sat, 1791° / 76°0
91 °
Oceanside, Saturday, 17 October
Clear. High 91°, low 76°.
Pressure29.91 inHg
Wind9.8 mph SW
Humidity23%
Visibility—
Dew point46°
Sun, 1883° / 74°0
83 °
Oceanside, Sunday, 18 October
Clear. High 83°, low 74°.
Pressure29.97 inHg
Wind8.7 mph SW
Humidity40%
Visibility—
Dew point55°
Mon, 1980° / 70°0
80 °
Oceanside, Monday, 19 October
Partly cloudy. High 80°, low 70°.
Pressure30.00 inHg
Wind9.5 mph W
Humidity48%
Visibility—
Dew point56°
Tue, 2077° / 67°0
77 °
Oceanside, Tuesday, 20 October
Clear. High 77°, low 67°.
Pressure29.94 inHg
Wind9.2 mph SW
Humidity56%
Visibility—
Dew point58°
Wed, 2179° / 67°0
79 °
Oceanside, Wednesday, 21 October
Clear. High 79°, low 67°.
Pressure29.94 inHg
Wind8.3 mph W
Humidity54%
Visibility—
Dew point58°
Thu, 2277° / 69°0
77 °
Oceanside, Thursday, 22 October
Clear. High 77°, low 69°.
Pressure29.91 inHg
Wind9.8 mph W
Humidity58%
Visibility—
Dew point60°
Fri, 2373° / 67°0
73 °
Oceanside, Friday, 23 October
Clear. High 73°, low 67°.
Pressure29.97 inHg
Wind11.6 mph W
Humidity67%
Visibility—
Dew point61°
Sat, 2472° / 65°0
72 °
Oceanside, Saturday, 24 October
Partly cloudy. High 72°, low 65°.
Pressure30.00 inHg
Wind12.2 mph W
Humidity69%
Visibility—
Dew point60°
Sun, 2581° / 66°0
81 °
Oceanside, Sunday, 25 October
Clear. High 81°, low 66°.
Pressure29.91 inHg
Wind10 mph SW
Humidity51%
Visibility—
Dew point58°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2673° / 56°0.01
73 °
Oceanside, Monday, 26 October
Climate normal for this date — 60-year average.
Average high73°
Average low56°
Average precipitation0.01 in
Chance of precipitation10%
Record high87° (2017)
Record low47° (1989)
Tue, 2773° / 56°0.04
73 °
Oceanside, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high73°
Average low56°
Average precipitation0.04 in
Chance of precipitation10%
Record high85° (1973)
Record low46° (1996)
Wed, 2872° / 55°0.03
72 °
Oceanside, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high72°
Average low55°
Average precipitation0.03 in
Chance of precipitation10%
Record high87° (2008)
Record low47° (1989)
Thu, 2971° / 55°0.03
71 °
Oceanside, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high71°
Average low55°
Average precipitation0.03 in
Chance of precipitation10%
Record high86° (2025)
Record low41° (1971)
Fri, 3071° / 54°0.04
71 °
Oceanside, Friday, 30 October
Climate normal for this date — 60-year average.
Average high71°
Average low54°
Average precipitation0.04 in
Chance of precipitation17%
Record high87° (1962)
Record low38° (1971)
Sat, 3171° / 54°0.02
71 °
Oceanside, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high71°
Average low54°
Average precipitation0.02 in
Chance of precipitation10%
Record high84° (1962)
Record low42° (1972)
Sun, 0172° / 53°0.02
72 °
Oceanside, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high72°
Average low53°
Average precipitation0.02 in
Chance of precipitation12%
Record high91° (1966)
Record low43° (1971)
Mon, 0272° / 53°0.02
72 °
Oceanside, Monday, 2 November
Climate normal for this date — 60-year average.
Average high72°
Average low53°
Average precipitation0.02 in
Chance of precipitation10%
Record high87° (1997)
Record low43° (1971)
Tue, 0372° / 53°0.01
72 °
Oceanside, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high72°
Average low53°
Average precipitation0.01 in
Chance of precipitation5%
Record high86° (2010)
Record low45° (1990)
Wed, 0471° / 53°0.02
71 °
Oceanside, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high71°
Average low53°
Average precipitation0.02 in
Chance of precipitation12%
Record high90° (1976)
Record low42° (1994)
Thu, 0570° / 53°0.01
70 °
Oceanside, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high70°
Average low53°
Average precipitation0.01 in
Chance of precipitation7%
Record high90° (2020)
Record low46° (1973)
Fri, 0670° / 53°0.01
70 °
Oceanside, Friday, 6 November
Climate normal for this date — 60-year average.
Average high70°
Average low53°
Average precipitation0.01 in
Chance of precipitation8%
Record high85° (2006)
Record low46° (1996)
Sat, 0769° / 54°0.04
69 °
Oceanside, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high69°
Average low54°
Average precipitation0.04 in
Chance of precipitation8%
Record high84° (2006)
Record low44° (2011)
Sun, 0869° / 53°0.07
69 °
Oceanside, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high69°
Average low53°
Average precipitation0.07 in
Chance of precipitation18%
Record high83° (1976)
Record low44° (2000)
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 Oceanside, 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 Oceanside, 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.