Sea Temperature

Philadelphia Sea Temperature

(Today) Dec 2018

7.8°C / 46°F

Current weather

3°C / 38°F
(few clouds)

Partly cloudy

16 mph



The measurements for the water temperature in Philadelphia, Pennsylvania are provided by the daily satellite readings provided by the NOAA. The temperatures given are the sea surface temperature (SST) which is most relevant to recreational users.

Monthly average max / min water temperatures

The graph below shows the range of monthly Philadelphia water temperature derived from many years of historical sea surface temperature data.

Maximum and minimum monthly sea temperatures in Philadelphia
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 3 2.9 3.3 4.7 8.1 15.1 21.3 22.2 19.8 14.4 10.7 5.9
Max °C 7.9 5.9 6.9 11.6 16.2 23 25.4 26.6 24 21.4 15 11.5
Min °F 39.3 38.4 39.4 43.2 49.8 62.3 71.9 73.7 69.3 60.7 52.9 44.9
Max °F 44.2 41.4 43 50.1 57.9 70.2 76 78.1 73.5 67.7 57.2 50.5

7 day tide forecast for Philadelphia

  • Low 03:57am
  • High 09:27am
  • Low 04:34pm
  • High 09:51pm
  • Low 04:49am
  • High 10:16am
  • Low 05:30pm
  • High 10:42pm
  • Low 05:41am
  • High 11:04am
  • Low 06:26pm
  • High 11:31pm
  • Low 06:33am
  • High 11:51am
  • Low 07:19pm
  • High 12:20am
  • Low 07:24am
  • High 12:38pm
  • Low 08:11pm
  • High 01:09am
  • Low 08:15am
  • High 01:26pm
  • Low 09:03pm
  • High 01:59am
  • Low 09:07am
  • High 02:16pm
  • Low 09:54pm

*These tide times are estimates based on the nearest port (Market Street Bridge, Schuylkill River) and may differ by up to half and hour depending on distance. Please note, the tide times given are not suitable for navigational purposes.

Average December sea temperatures

  • Max: 11.5°C / 52.7°F
  • Avg: 8.7°C / 47.7°F
  • Min: 5.9°C / 42.6°F
Philadelphia average sea temperature chart

These average ocean temperatures for Philadelphia are calculated from several years of archived data.

Map showing location of Philadelphia (39.952330, -75.163790)

Locations nearby


Whilst sea temperatures for Philadelphia are as accurate as current data allows, there may be slight local and regional variations depending on conditions. Time of day and wind direction may have a temporary local effect as can water flows from neraby rivers.

Alternate names for Philadelphia
Coaquannock, Fi-sang, Fi-sàng, Filadel'fi, Filadel'fij, Filadel'fija, Filadelfi, Filadelfia, Filadelfiae, Filadelfie, Filadelfii, Filadelfija, Filadelfijo, Filadelfio, Filadelfiya, Filadelfiye, Filadelfiä, Filadèlfia, Filadélfia, Filadélfiye, Ga-na-ta-jen-go-na, Gorad Filadehl'fija, PHL, Philadelpheia, Philadelphia, Philadelphie, Philly, Quequenakee, Tsi wahswen:to Tekahso:ken, Tsi wahswèn:to Tekahsó:ken, fei cheng, fi la delfeiy, filadailafi'a, firaderufia, flaڈylfya, fyladlfya, fyladlfya pnsylwanya, philadelaphiya, philadelphiya, piladelpia, pilatelpiya, pilladelpia, pyldlpyh, Φιλαδέλφεια, Горад Філадэльфія, Филаделфиа, Филаделфия, Филаделфија, Филадельфи, Филадельфий, Филадельфия, Філадельфія, Ֆիլադելֆիա, פילאדעלפיע, פילדלפיה, فلاڈیلفیا, فلاڈیلفیا، پنسلوانیا, فيلادلفيا, فیلادلفیا, فیلادلفیا، پنسیلوانیا, फिलाडेल्फिया, ফিলাডেলফিয়া, ਫ਼ਿਲਾਡੈਲਫ਼ੀਆ, ફિલાડેલ્ફિયા, பிலடெல்பியா, ఫిలడెల్ఫియా, ಫಿಲಡೆಲ್ಫಿಯಾ, ഫിലഡെൽഫിയ, ฟิลาเดลเฟีย, ဖီလာဒဲလ်ဖီးယားမြို့, ფილადელფია, ፊላዴልፊያ, ភីឡាដេលផ្យា, フィラデルフィア, 費城, 费城, 필라델피아

Philadelphia average sea temperature chart