All data are in degrees Fahrenheit

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Water temperature in Nanaimo

Detailed information about the current water temperature in Nanaimo. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.
Sea temperature in Nanaimo now

60.0

°F

September 22, 09:49

Trend:

stable

Yesterday:

58.9°F

Tomorrow:

59.9°F

Sunrise:

07:02

Sunset:

19:14

Day Length:

12 h. 12 min.

Nanaimo in September

Minimum:

42.7°F

Average:

45.1°F

Maximum:

46.8°F

Sea water temperature in Nanaimo today

As of now, in Nanaimo, the water temperature is 60.0°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is 1.4°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a noticeable increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to stay about the same.

Recent sea temperature and forecast

Today's water temperature is slightly lower than the average registered over the last two weeks, indicating a slight cooling trend. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 60.6°F on 2025, while the historical minimum was 56.1°F on 2021.

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 59.3°F, the minimum temperature may reach 59.0°F, and the maximum might stay at 59.9°F.

Daily water temperature in Nanaimo

Date Current Year

actual* / forecast**

last year 10 years average
Sep 8 61.2°F 65.6°F 63.1°F
Sep 9 61.0°F 64.0°F 62.6°F
Sep 10 61.6°F 63.0°F 62.4°F
Sep 11 61.8°F 63.2°F 62.2°F
Sep 12 61.4°F 63.9°F 62.0°F
Sep 13 61.3°F 63.5°F 61.6°F
Sep 14 61.1°F 63.0°F 61.1°F
Sep 15 60.2°F 62.7°F 60.6°F
Sep 16 59.9°F 60.9°F 59.9°F
Sep 17 59.3°F 60.9°F 59.9°F
Sep 18 59.9°F 61.1°F 59.7°F
Sep 19 59.5°F 60.5°F 59.1°F
Sep 20 58.5°F 61.2°F 59.0°F
Sep 21 58.9°F 61.9°F 59.0°F
Sep 22 60.0°F 60.6°F 58.6°F
Sep 23 59.9°F 59.6°F 58.5°F
Sep 24 59.5°F 58.4°F 58.1°F
Sep 25 59.3°F 59.0°F 57.9°F
Sep 26 59.2°F 58.5°F 57.8°F
Sep 27 59.2°F 58.7°F 57.7°F
Sep 28 59.3°F 58.4°F 57.8°F
Sep 29 59.0°F 58.2°F 57.6°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Sea water temperature in Nanaimo by month

In an average year, Nanaimo offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Nanaimo was recorded on July 31, 2022, reaching a 72.3°F. While the coldest temperature occurred on February 13, 2019, dipping to 41.5°F. The average readings by season are 45.2°F in Winter, 50.3°F in Spring, 63.6°F in Summer, and 54.4°F in Autumn.