What is the current water temperature in Jamestown?

Q: What is the current water temperature in Jamestown?

As of now, in Jamestown, the water temperature is 22.83°C. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool.

Saint Helena > Jamestown

Water temperature in Jamestown

Detailed information about the current water temperature in Jamestown. 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.

73.1

°F

December 27, 03:37

Trend:

increasing

Yesterday:

73.0°F

Tomorrow:

73.1°F

Sunrise:

05:52

Sunset:

18:56

Day Length:

13 h. 4 min.

Jamestown in January

Minimum:

71.3°F

Average:

72.8°F

Maximum:

74.1°F

Sea water temperature in Jamestown today

As of now, in Jamestown, the water temperature is 73.1°F. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool. Today's reading is 0.8°F higher than the average recorded on this particular day in recent years. The sea temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to stay about the same.

Recent sea temperature and forecast

Today's water temperature is notably higher than the average recorded over the past two weeks, indicating a significant warming trend. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 73.6°F on 2023, while the historical minimum was 70.8°F on 2017.

latest data

last year

Over the last two weeks, the water temperature has stayed slightly lower than historical averages for those days. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 73.4°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Jamestown

Date	Current Year actual* / forecast**	last year	10 years average
Jan 1	73.6°F	72.6°F	72.8°F
Jan 2	73.6°F	72.7°F	72.8°F
Jan 3	73.7°F	72.7°F	73.0°F
Dec 13	70.7°F	71.0°F	71.3°F
Dec 14	70.7°F	71.1°F	71.3°F
Dec 15	70.7°F	71.2°F	71.3°F
Dec 16	70.8°F	71.3°F	71.3°F
Dec 17	70.9°F	71.2°F	71.4°F
Dec 18	71.1°F	71.5°F	71.6°F
Dec 19	71.0°F	71.5°F	71.6°F
Dec 20	71.2°F	71.6°F	71.5°F
Dec 21	71.3°F	71.7°F	71.8°F
Dec 22	71.9°F	71.5°F	72.0°F
Dec 23	72.2°F	71.7°F	72.1°F
Dec 24	72.4°F	71.8°F	72.1°F
Dec 25	72.8°F	71.9°F	72.2°F
Dec 26	73.0°F	72.0°F	72.2°F
Dec 27	73.1°F	72.2°F	72.3°F
Dec 28	73.1°F	72.1°F	72.3°F
Dec 29	73.2°F	72.3°F	72.4°F
Dec 30	73.3°F	72.4°F	72.5°F
Dec 31	73.4°F	72.5°F	72.6°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 Jamestown by month

In Jamestown, the months January through June offer comfortable swimming conditions, which amounts to 166 swimming days.

The warmest water in Jamestown was recorded on February 24, 2022, reaching a 79.6°F. While the coldest temperature occurred on October 11, 2022, dipping to 67.4°F. The average readings by season are 74.2°F in Winter, 76.8°F in Spring, 71.7°F in Summer, and 69.0°F in Autumn.