Monthly outlook for Westhaven, CA: average high 57.5°, average low 48.4°. That is 1.4° below the climate normal for October. Precipitation is expected on 7 days (about 3.5 inches), against a normal of 5 days and 2.8 inches. The warmest day looks like 18 October (70.4°), the coolest 18 October (42.9°).
57.5°/48.4°
Average high / low
−1.4°
Below normal
7 / 5
Wet days / normal
3.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
17 October – 26 October
59.9°
60.7°
-0.4°
27 October – 5 November
53.7°
58.9°
-2.9°
6 November – 15 November
at normal
57°
—
October records over 66 years
86.4°10 October 1991All-time high
36.5°29 October 2019All-time low
Climate normals and records are computed from the nearest reference point — Clam Beach (3 mi).
Sun, 1870° / 43°0
70 °
Westhaven, Sunday, 18 October
Overcast. High 70°, low 43°.
Pressure30.06 inHg
Wind2.7 mph W
Humidity94%
Visibility0.7 mi
Dew point51°
Mon, 1956° / 51°0.04
56 °
Westhaven, Monday, 19 October
Light rain. High 56°, low 51°.
Pressure29.94 inHg
Wind3.5 mph S
Humidity71%
Visibility6.2 mi
Dew point44°
Tue, 2057° / 50°0.01
57 °
Westhaven, Tuesday, 20 October
Light rain. High 57°, low 50°.
Pressure29.91 inHg
Wind5.7 mph NW
Humidity80%
Visibility1.2 mi
Dew point50°
Wed, 2159° / 50°0
59 °
Westhaven, Wednesday, 21 October
Clear. High 59°, low 50°.
Pressure29.91 inHg
Wind7.3 mph N
Humidity80%
Visibility—
Dew point51°
Thu, 2256° / 52°0.02
56 °
Westhaven, Thursday, 22 October
Light rain. High 56°, low 52°.
Pressure30.06 inHg
Wind9.3 mph NW
Humidity82%
Visibility—
Dew point50°
Fri, 2358° / 51°0.06
58 °
Westhaven, Friday, 23 October
Light rain. High 58°, low 51°.
Pressure30.12 inHg
Wind8.1 mph S
Humidity72%
Visibility—
Dew point48°
Sat, 2458° / 52°1.35
58 °
Westhaven, Saturday, 24 October
Rain. High 58°, low 52°.
Pressure30.00 inHg
Wind17.4 mph S
Humidity96%
Visibility—
Dew point55°
Sun, 2556° / 49°0
56 °
Westhaven, Sunday, 25 October
Light rain. High 56°, low 49°.
Pressure30.09 inHg
Wind7.7 mph N
Humidity71%
Visibility—
Dew point46°
Mon, 2659° / 49°0
59 °
Westhaven, Monday, 26 October
Overcast. High 59°, low 49°.
Pressure30.00 inHg
Wind7.5 mph S
Humidity63%
Visibility—
Dew point46°
Tue, 2756° / 49°0.15
56 °
Westhaven, Tuesday, 27 October
Rain. High 56°, low 49°.
Pressure30.15 inHg
Wind18.9 mph N
Humidity72%
Visibility—
Dew point47°
Wed, 2855° / 47°0.02
55 °
Westhaven, Wednesday, 28 October
Light rain. High 55°, low 47°.
Pressure30.18 inHg
Wind10.4 mph S
Humidity66%
Visibility—
Dew point43°
Thu, 2953° / 48°0.32
53 °
Westhaven, Thursday, 29 October
Rain. High 53°, low 48°.
Pressure30.12 inHg
Wind14.4 mph SW
Humidity72%
Visibility—
Dew point44°
Fri, 3054° / 45°0.01
54 °
Westhaven, Friday, 30 October
Light rain. High 54°, low 45°.
Pressure30.06 inHg
Wind9.4 mph SE
Humidity63%
Visibility—
Dew point41°
Sat, 3153° / 49°0.89
53 °
Westhaven, Saturday, 31 October
Rain. High 53°, low 49°.
Pressure29.83 inHg
Wind14.9 mph S
Humidity89%
Visibility—
Dew point49°
Sun, 0151° / 46°0.64
51 °
Westhaven, Sunday, 1 November
Rain. High 51°, low 46°.
Pressure29.56 inHg
Wind13.4 mph S
Humidity90%
Visibility—
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0259° / 48°0.19
59 °
Westhaven, Monday, 2 November
Climate normal for this date — 60-year average.
Average high59°
Average low48°
Average precipitation0.19 in
Chance of precipitation35%
Record high70° (1986)
Record low40° (1996)
Tue, 0359° / 48°0.18
59 °
Westhaven, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high59°
Average low48°
Average precipitation0.18 in
Chance of precipitation32%
Record high71° (2021)
Record low35° (1973)
Wed, 0458° / 48°0.18
58 °
Westhaven, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high58°
Average low48°
Average precipitation0.18 in
Chance of precipitation37%
Record high70° (1986)
Record low38° (2003)
Thu, 0558° / 48°0.26
58 °
Westhaven, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high58°
Average low48°
Average precipitation0.26 in
Chance of precipitation40%
Record high70° (2012)
Record low38° (1972)
Fri, 0658° / 48°0.29
58 °
Westhaven, Friday, 6 November
Climate normal for this date — 60-year average.
Average high58°
Average low48°
Average precipitation0.29 in
Chance of precipitation50%
Record high67° (1978)
Record low37° (2017)
Sat, 0757° / 47°0.24
57 °
Westhaven, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high57°
Average low47°
Average precipitation0.24 in
Chance of precipitation42%
Record high68° (2016)
Record low37° (2018)
Sun, 0857° / 47°0.24
57 °
Westhaven, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high57°
Average low47°
Average precipitation0.24 in
Chance of precipitation45%
Record high70° (1976)
Record low38° (1994)
Mon, 0956° / 47°0.25
56 °
Westhaven, Monday, 9 November
Climate normal for this date — 60-year average.
Average high56°
Average low47°
Average precipitation0.25 in
Chance of precipitation48%
Record high69° (1996)
Record low36° (2020)
Tue, 1057° / 47°0.22
57 °
Westhaven, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high57°
Average low47°
Average precipitation0.22 in
Chance of precipitation45%
Record high67° (1996)
Record low35° (2018)
Wed, 1158° / 46°0.25
58 °
Westhaven, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high58°
Average low46°
Average precipitation0.25 in
Chance of precipitation37%
Record high70° (2016)
Record low30° (1985)
Thu, 1257° / 47°0.24
57 °
Westhaven, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high57°
Average low47°
Average precipitation0.24 in
Chance of precipitation45%
Record high69° (1974)
Record low33° (1985)
Fri, 1356° / 47°0.36
56 °
Westhaven, Friday, 13 November
Climate normal for this date — 60-year average.
Average high56°
Average low47°
Average precipitation0.36 in
Chance of precipitation50%
Record high66° (1967)
Record low36° (1964)
Sat, 1456° / 46°0.2
56 °
Westhaven, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high56°
Average low46°
Average precipitation0.2 in
Chance of precipitation38%
Record high65° (2025)
Record low33° (1964)
Sun, 1557° / 47°0.28
57 °
Westhaven, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high57°
Average low47°
Average precipitation0.28 in
Chance of precipitation58%
Record high72° (2008)
Record low37° (2018)
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 Westhaven, 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 Westhaven, 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.