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Greencastle water temp

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This data the coastal Greencastle water temperature today, tomorrow and the upcoming days. Besides, you can also get information about the weather and surf forecast, as well as the data on sunrise / sunset and moonrise / moonset at a given point on any given day.

Current water temperature in Greencastle

Water temperature in Greencastle today is 64.4°F. Based on our historical data over a period of ten years, the warmest water in this day in Greencastle was recorded in 2023 and was 77°F, and the coldest 64.4°F. Water temperature in Greencastle is expected to rise to 68.5°F in the next 10 days. September average water temperature in Greencastle is 69.3°F, the minimum temperature is 59°F, and the maximum is 77°F.

The swimming season in Greencastle lasts from July to September. During those months, Greencastle water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Greencastle in winter reaches 39°F, in spring 52.9°F, in summer the average temperature rises to 73.2°F, and in autumn it is 58.1°F.

Greencastle water temperature now


September 5, 2025
today temp
64.4°F
September 4, 2025
yesterday temp
64.4°F


Current temperature and weather

Data in a table show Greencastle temperature today (September 6, 2025). For more information and forecast for a few days, go to the weather forecast Greencastle.

0-3 h3-6 h6-9 h9-12 h
54.5°F52.3°F54.7°F63.3°F
12-15 h15-18 h18-21 h21-24 h
69.8°F68.4°F65.5°F59.9°F

You may also be interested in other sections of our site for Greencastle: Sunrise and Sunset

Greencastle water temperature by month

These figures shows the average, minimum and maximum monthly water temperature in Greencastle. In addition to the table values, the graph below displays of changes average surface temperature during the year. Values are calculated based on the data over the past 10 years. Using them, you can check the water temperature in Greencastle on any day of this period that interests you. Click on the month link and you will see a table for each day, or alternatively you can view the temperature curve of the month and select 2 different years you want to compare, either in a table or as a curve

MonthAvrMinMax
January38.1°F33.8°F48.2°Fcold
Water temperature in Greencastle in January
February38.7°F35.6°F44.6°Fcold
Water temperature in Greencastle in February
March43.9°F37.4°F55.4°Fcold
Water temperature in Greencastle in March
April52.2°F41°F66.2°Fcold
Water temperature in Greencastle in April
May62.6°F46.4°F73.4°Fcold
Water temperature in Greencastle in May
June71.1°F62.6°F82.4°Fwarm
Water temperature in Greencastle in June
July74.8°F71.6°F84.2°Fwarm
Water temperature in Greencastle in July
August73.8°F68°F80.6°Fwarm
Water temperature in Greencastle in August
September69.3°F59°F77°Fwarm
Water temperature in Greencastle in September
October57.6°F46.4°F69.8°Fcold
Water temperature in Greencastle in October
November47.5°F37.4°F59°Fcold
Water temperature in Greencastle in November
December40.1°F37.4°F46.4°Fcold
Water temperature in Greencastle in December

Chart monthly average water temperature in Greencastle

Water temperature in Greencastle

Where is the warmest sea water in the world?

If you want to plan a vacation on the beach and enjoy the warm sea, choose the day of the year, region and the minimum comfortable sea/ocean temperature that interests you. As a result, you will get a list of countries and cities in which the average sea temperature or maximum temperature on this day over the past 10 years exceeds your chosen value

Region
Date (day and month)
Water temperature: min 60°F
 Average temperature  Maximum temperature

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[1] - The "Blue Flag" is awarded to beaches which fulfill a number of criteria, including: the quality of the bathing water, which must be in accordance with the relevant European Union Directive environmental education and information and beach area management and safety.

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Our report for Greencastle is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.

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