Monthly outlook for San Mateo, CA: average high 64.3°, average low 54.6°. That is 1.4° above the climate normal for November. Precipitation is expected on 5 days (about 3.6 inches), against a normal of 4 days and 1.3 inches. The warmest day looks like 9 November (73.3°), the coolest 9 November (47.9°).
64.3°/54.6°
Average high / low
+1.4°
Above normal
5 / 4
Wet days / normal
3.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 November – 17 November
66.4°
62.7°
+2°
18 November – 27 November
60.9°
60°
+0.6°
28 November – 7 December
at normal
58.3°
—
November records over 66 years
84°4 November 1976All-time high
36°24 November 2010All-time low
Mon, 0973° / 48°0
73 °
San Mateo, Monday, 9 November
Overcast. High 73°, low 48°.
Pressure30.12 inHg
Wind5.4 mph NW
Humidity70%
Visibility0.1 mi
Dew point57°
Tue, 1067° / 57°0
67 °
San Mateo, Tuesday, 10 November
Partly cloudy. High 67°, low 57°.
Pressure30.18 inHg
Wind1.3 mph N
Humidity72%
Visibility3.7 mi
Dew point56°
Wed, 1168° / 57°0
68 °
San Mateo, Wednesday, 11 November
Partly cloudy. High 68°, low 57°.
Pressure30.06 inHg
Wind3 mph NW
Humidity75%
Visibility6.2 mi
Dew point56°
Thu, 1266° / 56°0
66 °
San Mateo, Thursday, 12 November
Overcast. High 66°, low 56°.
Pressure29.91 inHg
Wind7.2 mph W
Humidity83%
Visibility—
Dew point55°
Fri, 1367° / 56°0
67 °
San Mateo, Friday, 13 November
Overcast. High 67°, low 56°.
Pressure29.94 inHg
Wind7.2 mph NW
Humidity87%
Visibility—
Dew point55°
Sat, 1469° / 60°0
69 °
San Mateo, Saturday, 14 November
Partly cloudy. High 69°, low 60°.
Pressure29.83 inHg
Wind5.8 mph S
Humidity46%
Visibility—
Dew point45°
Sun, 1562° / 55°0.58
62 °
San Mateo, Sunday, 15 November
Rain. High 62°, low 55°.
Pressure29.88 inHg
Wind15.8 mph SW
Humidity82%
Visibility—
Dew point53°
Mon, 1659° / 53°0
59 °
San Mateo, Monday, 16 November
Overcast. High 59°, low 53°.
Pressure30.12 inHg
Wind4.9 mph S
Humidity68%
Visibility—
Dew point47°
Tue, 1761° / 55°0.23
61 °
San Mateo, Tuesday, 17 November
Rain. High 61°, low 55°.
Pressure29.94 inHg
Wind19.9 mph S
Humidity66%
Visibility—
Dew point48°
Wed, 1860° / 53°0.53
60 °
San Mateo, Wednesday, 18 November
Rain. High 60°, low 53°.
Pressure29.94 inHg
Wind14 mph W
Humidity65%
Visibility—
Dew point47°
Thu, 1961° / 53°0
61 °
San Mateo, Thursday, 19 November
Overcast. High 61°, low 53°.
Pressure30.15 inHg
Wind7 mph S
Humidity71%
Visibility—
Dew point48°
Fri, 2062° / 54°0
62 °
San Mateo, Friday, 20 November
Overcast. High 62°, low 54°.
Pressure29.97 inHg
Wind14.4 mph SE
Humidity68%
Visibility—
Dew point48°
Sat, 2159° / 55°1.27
59 °
San Mateo, Saturday, 21 November
Heavy rain. High 59°, low 55°.
Pressure29.85 inHg
Wind17.6 mph SE
Humidity74%
Visibility—
Dew point50°
Sun, 2263° / 53°0
63 °
San Mateo, Sunday, 22 November
Overcast. High 63°, low 53°.
Pressure30.06 inHg
Wind8.6 mph SE
Humidity73%
Visibility—
Dew point49°
Mon, 2360° / 58°1.04
60 °
San Mateo, Monday, 23 November
Heavy rain. High 60°, low 58°.
Pressure29.71 inHg
Wind19.4 mph S
Humidity73%
Visibility—
Dew point51°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2460° / 48°0.08
60 °
San Mateo, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high60°
Average low48°
Average precipitation0.08 in
Chance of precipitation18%
Record high69° (1995)
Record low36° (2010)
Wed, 2560° / 48°0.06
60 °
San Mateo, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high60°
Average low48°
Average precipitation0.06 in
Chance of precipitation25%
Record high71° (1975)
Record low41° (1983)
Thu, 2659° / 47°0.08
59 °
San Mateo, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high59°
Average low47°
Average precipitation0.08 in
Chance of precipitation22%
Record high70° (2014)
Record low39° (2015)
Fri, 2759° / 47°0.07
59 °
San Mateo, Friday, 27 November
Climate normal for this date — 60-year average.
Average high59°
Average low47°
Average precipitation0.07 in
Chance of precipitation20%
Record high69° (1986)
Record low38° (2015)
Sat, 2859° / 47°0.11
59 °
San Mateo, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high59°
Average low47°
Average precipitation0.11 in
Chance of precipitation20%
Record high69° (1980)
Record low38° (2015)
Sun, 2959° / 47°0.11
59 °
San Mateo, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high59°
Average low47°
Average precipitation0.11 in
Chance of precipitation25%
Record high69° (1977)
Record low38° (2006)
Mon, 3058° / 47°0.16
58 °
San Mateo, Monday, 30 November
Climate normal for this date — 60-year average.
Average high58°
Average low47°
Average precipitation0.16 in
Chance of precipitation25%
Record high67° (2008)
Record low39° (2007)
Tue, 0159° / 47°0.11
59 °
San Mateo, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high59°
Average low47°
Average precipitation0.11 in
Chance of precipitation27%
Record high67° (2021)
Record low40° (2007)
Wed, 0258° / 47°0.17
58 °
San Mateo, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high58°
Average low47°
Average precipitation0.17 in
Chance of precipitation25%
Record high68° (1986)
Record low39° (2022)
Thu, 0359° / 47°0.12
59 °
San Mateo, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high59°
Average low47°
Average precipitation0.12 in
Chance of precipitation27%
Record high70° (1979)
Record low40° (2005)
Fri, 0458° / 47°0.07
58 °
San Mateo, Friday, 4 December
Climate normal for this date — 60-year average.
Average high58°
Average low47°
Average precipitation0.07 in
Chance of precipitation27%
Record high67° (1979)
Record low37° (1971)
Sat, 0558° / 47°0.08
58 °
San Mateo, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high58°
Average low47°
Average precipitation0.08 in
Chance of precipitation25%
Record high65° (1962)
Record low36° (1972)
Sun, 0658° / 47°0.07
58 °
San Mateo, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high58°
Average low47°
Average precipitation0.07 in
Chance of precipitation30%
Record high67° (1962)
Record low36° (1978)
Mon, 0758° / 46°0.09
58 °
San Mateo, Monday, 7 December
Climate normal for this date — 60-year average.
Average high58°
Average low46°
Average precipitation0.09 in
Chance of precipitation30%
Record high69° (1975)
Record low33° (1978)
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 San Mateo, 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 San Mateo, 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.