Water temperature in Greater Napanee (ON) in August

Home > Canada > Ontario > Greater Napanee

Is it warm enough to swim in Greater Napanee in August? Average water temperature in Greater Napanee in August is 22.9°C and therefore suitable for comfortable swimming. The warmest water in Greater Napanee in August is 25.5°C, and the coldest is 18.9°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Greater Napanee

Changes water temperature in Greater Napanee in August 2025, 2024

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

Sea temperature

Tides

Weather forecast

You can choose any other years:

Day	2025	2024	Min	Max
1 August	23.6°C	24.9°C	20.6°C	24.9°C
2 August	23°C	24.6°C	20.8°C	24.7°C
3 August	22.4°C	24.5°C	21°C	24.5°C
4 August	22.5°C	23.9°C	20.8°C	24.5°C
5 August	22.6°C	24.7°C	21°C	24.7°C
6 August	22.8°C	24.2°C	21°C	24.3°C
7 August	22.8°C	24°C	21.3°C	25.2°C
8 August	23.5°C	23.6°C	21.2°C	25.5°C
9 August	23.9°C	23.6°C	21.3°C	25.5°C
10 August	23.8°C	23.4°C	21.3°C	24.8°C
11 August	24.3°C	23.1°C	21.4°C	24.6°C
12 August	24.8°C	22.9°C	21.4°C	24.8°C
13 August	25.6°C	22.8°C	21°C	25.6°C
14 August	25.3°C	22.5°C	20.4°C	25.3°C
15 August	24.9°C	22.8°C	18.9°C	24.9°C

Day	2025	2024	Min	Max
16 August	24.5°C	22.7°C	18.9°C	24.5°C
17 August	24°C	22.7°C	19.4°C	24.3°C
18 August	24°C	22.7°C	19.7°C	24°C
19 August	23.8°C	22.6°C	20°C	24.2°C
20 August	23.7°C	22.6°C	20.1°C	24.2°C
21 August	22.9°C	21.9°C	20.5°C	24.1°C
22 August	21.9°C	21.5°C	20.6°C	24°C
23 August	22.5°C	21.6°C	20.6°C	25.3°C
24 August	23.1°C	21.4°C	20.6°C	25.5°C
25 August	22.7°C	21.5°C	20.8°C	25.3°C
26 August	22.2°C	21.9°C	21.2°C	25.4°C
27 August	22.2°C	22.9°C	21°C	25.1°C
28 August	22.1°C	22.8°C	21.1°C	24.7°C
29 August	22.1°C	22.6°C	21.1°C	24.4°C
30 August	20.5°C	21.6°C	20.5°C	24°C
31 August	19.6°C	21.7°C	19.6°C	23.7°C

Greater Napanee water temp chart in August

Average water temperature in Greater Napanee in August over a decade

2016	2017	2018	2019	2020
23.9°C	22°C	23.4°C	22.8°C	23.9°C

2021	2022	2023	2024	2025
23.5°C	23.8°C	22.4°C	22.9°C	23°C

Greater Napanee sea state in August

Chart comparing the height of waves in Greater Napanee 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 Greater Napanee in August

Greater Napanee water temperature during other months:

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

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

	Avr	Min	Max
Picton	22.6°C	17.6°C	24.8°C
Kingston	22.8°C	19.4°C	25.4°C
Prince Edward	22.4°C	18.2°C	25.3°C
Sandbanks	22.5°C	17.9°C	25.5°C
North Beach	22.3°C	18.2°C	24.7°C
Gananoque	22.5°C	18.9°C	25.2°C
Brighton	22.1°C	17.7°C	25.1°C
Henderson Harbor	23.4°C	20.5°C	25.6°C
Pillar Point	23.4°C	20.5°C	25.6°C
Sackets Harbor	23.4°C	20.5°C	25.6°C

Ontario photo gallery

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 Ontario best beach

Get widget or API for your website

Our report for Greater Napanee 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.

Region

Date (day and month)

Water temperature: min 16°C

Average temperature Maximum temperature