Water temperature in Sumoto in May

Is it warm enough to swim in Sumoto in May? Average water temperature in Sumoto in May is 17.4°C and therefore is not suitable for comfortable swimming. The warmest sea in Sumoto in May is 21°C, and the coldest is 14.8°C. Average high air temperature in Sumoto in May is 22°C, and average low temperature is 14°C. To find out the sea temperature today and in the coming days, go to Current sea temperature in Sumoto

Changes water temperature in Sumoto in May 2025, 2024

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

Sea temperature

Tides

Weather forecast

You can choose any other years:

Day	2025	2024	Min	Max
1 May	15.4°C	16.2°C	15°C	17.8°C
2 May	15.2°C	15.7°C	14.9°C	17.8°C
3 May	14.9°C	16.2°C	14.9°C	17.9°C
4 May	15.6°C	16.3°C	14.8°C	18°C
5 May	15.7°C	16.4°C	15.2°C	18.2°C
6 May	16.1°C	16.6°C	15.5°C	18.1°C
7 May	15.5°C	16.4°C	15.5°C	18.5°C
8 May	15.6°C	16.3°C	15.2°C	18.3°C
9 May	15.8°C	16.2°C	15.4°C	18.4°C
10 May	16°C	16.3°C	15.7°C	17.9°C
11 May	16.1°C	16.4°C	15.2°C	18°C
12 May	16.5°C	16.5°C	15.9°C	17.7°C
13 May	16.4°C	16.1°C	15.8°C	17.7°C
14 May	16.8°C	16.2°C	16.1°C	17.9°C
15 May	16.7°C	16.5°C	16.2°C	18°C

Day	2025	2024	Min	Max
16 May	17°C	16.3°C	16.3°C	18°C
17 May	17.2°C	16.7°C	16.4°C	18.4°C
18 May	17.3°C	16.8°C	16.5°C	18.5°C
19 May	17.4°C	16.9°C	16.6°C	18.7°C
20 May	17.6°C	17.3°C	16.9°C	18.6°C
21 May	19°C	17.6°C	16.9°C	19°C
22 May	18.6°C	17.6°C	16.9°C	19.2°C
23 May	18.7°C	18.1°C	16.9°C	19.5°C
24 May	18.6°C	17.6°C	16.8°C	19.3°C
25 May	18.4°C	17.1°C	17°C	19.8°C
26 May	18.5°C	17.8°C	17.1°C	20°C
27 May	18°C	18.1°C	17.3°C	21°C
28 May	18.3°C	18.6°C	17.4°C	20.8°C
29 May	18.5°C	18.4°C	17.4°C	20.5°C
30 May	18.4°C	18.7°C	17.6°C	20.2°C
31 May	18.3°C	18°C	17.9°C	20.6°C

Average water temperature in Sumoto in May over a decade

2016	2017	2018	2019	2020
18.2°C	17.9°C	16.7°C	17.5°C	17.2°C

2021	2022	2023	2024	2025
17°C	17.4°C	17.7°C	17°C	17°C

Sumoto sea state in May

Chart comparing the height of waves in Sumoto in May 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.

Weather and climate in Sumoto in May

This data display average monthly climate indicators in Sumoto in May 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 temperature22°C
Average LOW temperature14°C
Average humidity
74
Average rainfall5.8''/147mm
Average sunshine6.6h

Sumoto 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 May. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

	Avr	Min	Max
Kainan	18.2°C	15.6°C	23°C
Wakayama-Shi	18.2°C	15.6°C	23°C
Shimminatocho	18.3°C	15.7°C	23°C
Naruto	17.2°C	14°C	20.8°C
Harima	16.9°C	14.3°C	20.9°C
Kaizuka	17.9°C	15.3°C	22.8°C
Kishiwada	17.9°C	15.3°C	22.8°C
Tokushima Shi	17.9°C	14.4°C	21.3°C
Komatsushima	18°C	14.7°C	21.7°C
Izumiotsu	17.9°C	15.3°C	23.1°C

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Our report for Sumoto 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.

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Date (day and month)

Water temperature: min 16°C

Average temperature Maximum temperature