Monthly outlook for Sea Isle City, NJ: average high 82.7°, average low 68.8°. That is 1.5° above the climate normal for August. Precipitation is expected on 2 days (about 0.3 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 9 August (90.5°), the coolest 15 August (60.7°).
82.7°/68.8°
Average high / low
+1.5°
Above normal
2 / 5
Wet days / normal
0.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
82.6°
80.7°
+1.1°
19 August – 28 August
83°
79.4°
+2°
29 August – 7 September
at normal
78.4°
—
August records over 66 years
93.2°3 August 2006All-time high
53.8°29 August 1982All-time low
Mon, 1090° / 74°0
90 °
Sea Isle City, Monday, 10 August
Clear. High 90°, low 74°.
Pressure30.00 inHg
Wind7.7 mph SW
Humidity50%
Visibility6.2 mi
Dew point67°
Tue, 1189° / 75°0
89 °
Sea Isle City, Tuesday, 11 August
Overcast. High 89°, low 75°.
Pressure29.88 inHg
Wind11.7 mph W
Humidity58%
Visibility6.2 mi
Dew point67°
Wed, 1283° / 72°0.05
83 °
Sea Isle City, Wednesday, 12 August
Light rain. High 83°, low 72°.
Pressure29.83 inHg
Wind6.3 mph W
Humidity79%
Visibility6.2 mi
Dew point68°
Thu, 1387° / 74°0
87 °
Sea Isle City, Thursday, 13 August
Light rain. High 87°, low 74°.
Pressure29.83 inHg
Wind14.2 mph W
Humidity57%
Visibility6.2 mi
Dew point68°
Fri, 1477° / 65°0
77 °
Sea Isle City, Friday, 14 August
Overcast. High 77°, low 65°.
Pressure30.03 inHg
Wind10.8 mph W
Humidity45%
Visibility—
Dew point52°
Sat, 1577° / 61°0
77 °
Sea Isle City, Saturday, 15 August
Overcast. High 77°, low 61°.
Pressure30.15 inHg
Wind12.1 mph NW
Humidity33%
Visibility—
Dew point44°
Sun, 1678° / 61°0
78 °
Sea Isle City, Sunday, 16 August
Overcast. High 78°, low 61°.
Pressure30.15 inHg
Wind7.8 mph S
Humidity42%
Visibility—
Dew point51°
Mon, 1773° / 65°0.19
73 °
Sea Isle City, Monday, 17 August
Light rain. High 73°, low 65°.
Pressure29.88 inHg
Wind15.2 mph S
Humidity95%
Visibility—
Dew point70°
Tue, 1880° / 62°0
80 °
Sea Isle City, Tuesday, 18 August
Overcast. High 80°, low 62°.
Pressure29.97 inHg
Wind8.7 mph SE
Humidity45%
Visibility—
Dew point55°
Wed, 1980° / 70°0.03
80 °
Sea Isle City, Wednesday, 19 August
Light rain. High 80°, low 70°.
Pressure29.88 inHg
Wind11.4 mph SE
Humidity54%
Visibility—
Dew point61°
Thu, 2087° / 71°0
87 °
Sea Isle City, Thursday, 20 August
Clear. High 87°, low 71°.
Pressure29.71 inHg
Wind11.7 mph W
Humidity51%
Visibility—
Dew point65°
Fri, 2180° / 66°0
80 °
Sea Isle City, Friday, 21 August
Overcast. High 80°, low 66°.
Pressure29.88 inHg
Wind8.7 mph N
Humidity56%
Visibility—
Dew point56°
Sat, 2282° / 68°0
82 °
Sea Isle City, Saturday, 22 August
Clear. High 82°, low 68°.
Pressure29.97 inHg
Wind18.9 mph S
Humidity56%
Visibility—
Dew point64°
Sun, 2389° / 77°0
89 °
Sea Isle City, Sunday, 23 August
Partly cloudy. High 89°, low 77°.
Pressure29.88 inHg
Wind18.4 mph S
Humidity43%
Visibility—
Dew point63°
Mon, 2479° / 67°0
79 °
Sea Isle City, Monday, 24 August
Clear. High 79°, low 67°.
Pressure30.15 inHg
Wind9.8 mph N
Humidity45%
Visibility—
Dew point55°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2580° / 69°0.04
80 °
Sea Isle City, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high80°
Average low69°
Average precipitation0.04 in
Chance of precipitation13%
Record high89° (1968)
Record low61° (1963)
Wed, 2680° / 70°0.04
80 °
Sea Isle City, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high80°
Average low70°
Average precipitation0.04 in
Chance of precipitation27%
Record high88° (2016)
Record low62° (2025)
Thu, 2780° / 71°0.11
80 °
Sea Isle City, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high80°
Average low71°
Average precipitation0.11 in
Chance of precipitation32%
Record high90° (2020)
Record low60° (2025)
Fri, 2880° / 71°0.2
80 °
Sea Isle City, Friday, 28 August
Climate normal for this date — 60-year average.
Average high80°
Average low71°
Average precipitation0.2 in
Chance of precipitation47%
Record high91° (2024)
Record low58° (1986)
Sat, 2980° / 70°0.15
80 °
Sea Isle City, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high80°
Average low70°
Average precipitation0.15 in
Chance of precipitation25%
Record high90° (2018)
Record low54° (1982)
Sun, 3080° / 70°0.07
80 °
Sea Isle City, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high80°
Average low70°
Average precipitation0.07 in
Chance of precipitation30%
Record high91° (2018)
Record low57° (2025)
Mon, 3179° / 70°0.05
79 °
Sea Isle City, Monday, 31 August
Climate normal for this date — 60-year average.
Average high79°
Average low70°
Average precipitation0.05 in
Chance of precipitation18%
Record high89° (1973)
Record low57° (1976)
Tue, 0178° / 69°0.15
78 °
Sea Isle City, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high78°
Average low69°
Average precipitation0.15 in
Chance of precipitation30%
Record high88° (1973)
Record low59° (1986)
Wed, 0278° / 68°0.11
78 °
Sea Isle City, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high78°
Average low68°
Average precipitation0.11 in
Chance of precipitation28%
Record high87° (1973)
Record low58° (2023)
Thu, 0378° / 69°0.08
78 °
Sea Isle City, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high78°
Average low69°
Average precipitation0.08 in
Chance of precipitation32%
Record high88° (2023)
Record low55° (1967)
Fri, 0479° / 69°0.12
79 °
Sea Isle City, Friday, 4 September
Climate normal for this date — 60-year average.
Average high79°
Average low69°
Average precipitation0.12 in
Chance of precipitation25%
Record high92° (2023)
Record low56° (1997)
Sat, 0578° / 69°0.06
78 °
Sea Isle City, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high78°
Average low69°
Average precipitation0.06 in
Chance of precipitation23%
Record high90° (2023)
Record low58° (1994)
Sun, 0678° / 68°0.16
78 °
Sea Isle City, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high78°
Average low68°
Average precipitation0.16 in
Chance of precipitation32%
Record high93° (2023)
Record low58° (1962)
Mon, 0778° / 68°0.07
78 °
Sea Isle City, Monday, 7 September
Climate normal for this date — 60-year average.
Average high78°
Average low68°
Average precipitation0.07 in
Chance of precipitation27%
Record high90° (1983)
Record low57° (1984)
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 Sea Isle City, NJ 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 Sea Isle City, NJ 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.