World sea water temperatures

Water temperature in Montauk in August

Is it warm enough to swim in Montauk in August? Average water temperature in Montauk in August is 70.3°F and therefore suitable for comfortable swimming. The warmest sea in Montauk in August is 74.3°F, and the coldest is 66.9°F. Average high air temperature in Montauk in August is 79°F, and average low temperature is 66°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Montauk

Changes water temperature in Montauk in August 2025, 2024

To get an accurate forecast for the water temperature in Montauk for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Montauk, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of August.

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
August 169.8°F69.8°F68°F73.4°F
August 267.6°F71.1°F67.6°F74.7°F
August 368.7°F71.6°F68.5°F74.1°F
August 468.9°F72.1°F68.4°F73.6°F
August 568.5°F69.8°F68.5°F73.8°F
August 668.9°F72.1°F68.4°F72.3°F
August 769.8°F71.6°F68.4°F73.4°F
August 869.6°F71.6°F68.4°F73°F
August 968.9°F71.6°F68.2°F74.5°F
August 1069.6°F70.3°F68.4°F74.1°F
August 1168.9°F69.3°F68.2°F73.2°F
August 1269.1°F69.1°F68°F73°F
August 1369.8°F68.7°F68.4°F74.1°F
August 1470.5°F68.5°F68°F74.1°F
August 1570.2°F69.8°F67.8°F73.9°F
Day 2025 2024 Min Max
August 1671.6°F69.3°F68°F74.3°F
August 1770.9°F69.8°F68.4°F73.6°F
August 1870°F71.1°F68.5°F72.9°F
August 1969.3°F71.2°F67.8°F73.2°F
August 2069.3°F69.6°F67.8°F72.9°F
August 2167.8°F68.5°F67.5°F73°F
August 2267.8°F67.5°F67.1°F73.2°F
August 2368.5°F67.3°F67.1°F72.5°F
August 2469.6°F68.9°F67.5°F73.2°F
August 2570°F68.9°F67.5°F72.7°F
August 2669.1°F69.1°F68.4°F73°F
August 2769.3°F68.9°F68°F73.2°F
August 2868.7°F70°F68°F73.6°F
August 2968.9°F68.7°F67.1°F72.7°F
August 3068.7°F68.7°F67.5°F72.9°F
August 3168.4°F69.4°F67.1°F72.5°F
Montauk water temp chart in August

Average water temperature in Montauk in August over a decade

20162017201820192020
71.6°F69.4°F72°F69.6°F71.1°F
20212022202320242025
70.9°F71.2°F68.9°F69.6°F68.9°F

Montauk sea state in August

Chart comparing the height of waves in Montauk in August over the past years. The red line indicates the height of the waves when swimming in the sea is prohibited. To view the current sea conditions, click on the graph.

Waves height in Montauk in August

Weather and climate in Montauk in August

This data display average monthly climate indicators in Montauk in August based on our historical weather readings over a period of ten years. In addition to temperature, we include data on the number of rainy and sunny days so you can have all the information about your destination before your trip

  • Average HIGH temperature79°F
  • Average LOW temperature66°F
  • Average rainfall99mm/3.9''

Montauk water temperature during other months:

You can also view information about water temperature for other months by clicking on the month button below

Where is the warm sea water in August?

Want to know where the water temperature in August is good for swimming? Select the continent of interest, the day of the month and the required water temperature

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

Temperature in neighboring cities

The nearest locations with the average water temperature in August. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

AvrMinMax
New York City74.5°F69.4°F79.2°F
Ditch Plains Beach70.7°F67.1°F74.7°F
Hither Hills70.9°F67.1°F74.7°F
Napeague71.1°F67.3°F74.7°F
Springs71.2°F67.3°F74.8°F
Fishers Island69.6°F65.5°F73.8°F
Plum Island71.2°F65.8°F75.6°F
Amagansett71.4°F67.1°F75.7°F
Gardiners Bay72.1°F67.1°F77.9°F
Orient Point72°F66.7°F77.9°F

Long Island photo gallery

  • Long Island
  • Long Island
  • Long Island
  • Long Island

If you have interesting photos of this place, you can upload them here. Photos will be available to all users after verification by the moderator.

Vote for Long Island best beach

Current rating: (0 votes cast)

If you know this place (Montauk) and want to leave your comment or rate it, then fill out the following form.

Your rating for this place:

Does this place have a "Blue Flag" award [1], are there rip currents and what type of beach is it, sand or pebble:

Is the beach a dog-friendly place, child friendly or a nudist beach?


Your comments for this place (water quality, crowds, facilities, activities, lifeguards, service etc.):



[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.

Get widget or API for your website

Our report for Montauk 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.

Contact us: admin@seatemperature.info
privacy policy