What is the current water temperature in San Juan?

Q: What is the current water temperature in San Juan?

As of now, in San Juan, the water temperature is 19.2°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.

Peru > San Juan

Water temperature in San Juan

Detailed information about the current water temperature in San Juan. 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.

66.6

°F

January 26, 09:39

Trend:

stable

Yesterday:

66.9°F

Tomorrow:

66.7°F

Sunrise:

05:48

Sunset:

18:38

Day Length:

12 h. 50 min.

San Juan in February

Minimum:

61.5°F

Average:

64.8°F

Maximum:

66.9°F

Sea water temperature in San Juan today

As of now, in San Juan, the water temperature is 66.6°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 0.5°F lower 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 rise a bit.

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 also falls within the range of the average temperature recorded for this date, suggesting a consistent weather trend. The maximum temperature recorded for this date was 72.0°F on 2017, while the historical minimum was 62.6°F on 2022.

latest data

last year

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 66.3°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in San Juan

Date	Current Year actual* / forecast**	last year	10 years average
Jan 12	62.3°F	60.9°F	65.3°F
Jan 13	63.3°F	58.5°F	65.2°F
Jan 14	64.2°F	60.2°F	65.2°F
Jan 15	63.9°F	60.5°F	65.1°F
Jan 16	64.6°F	62.6°F	65.8°F
Jan 17	65.6°F	63.1°F	66.4°F
Jan 18	64.5°F	64.2°F	66.2°F
Jan 19	65.2°F	64.8°F	66.4°F
Jan 20	63.5°F	64.8°F	66.3°F
Jan 21	66.1°F	66.1°F	66.6°F
Jan 22	66.0°F	66.8°F	66.5°F
Jan 23	67.5°F	66.8°F	66.9°F
Jan 24	66.4°F	65.7°F	66.3°F
Jan 25	66.9°F	66.9°F	67.0°F
Jan 26	66.6°F	66.6°F	67.1°F
Jan 27	66.7°F	68.1°F	67.3°F
Jan 28	66.4°F	67.9°F	67.0°F
Jan 29	66.3°F	67.7°F	66.8°F
Jan 30	66.3°F	67.0°F	66.9°F
Jan 31	65.8°F	64.6°F	66.3°F
Feb 1	66.7°F	67.7°F	67.2°F
Feb 2	66.2°F	65.9°F	66.7°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 San Juan by month

In an average year, San Juan offers no days when the water temperature is warm enough to swim comfortably.

The warmest water in San Juan was recorded on February 10, 2023, reaching a 72.2°F. While the coldest temperature occurred on October 19, 2021, dipping to 53.4°F. The average readings by season are 65.1°F in Winter, 63.3°F in Spring, 59.2°F in Summer, and 58.6°F in Autumn.