Climate and monthly weather forecast
Weather in January
In Rianxo, Spain, the average seawater temperature in January is 13.9°C (57°F). Note: It is life-risking to swim in 13.9°C (57°F). Briefly staying in 13°C (55.4°F) waters feels unsettling, and temperatures below 10°C (50°F) might result in cold shock and loss of breath control, hinging on personal endurance. Weather in January »
Weather in February
In Rianxo, Spain, the average seawater temperature in February is 13.4°C (56.1°F). Note: Being in 13.4°C (56.1°F) waters at 13°C (55.4°F) is discomforting, but anything below 10°C (50°F) can jeopardize breathing and induce cold shock, factoring in physical endurance. Weather in February »
Weather in March
The month with the coldest seawater in Rianxo, Spain, is March, with an average sea temperature of 13.3°C (55.9°F). Note: Caution: 13.3°C (55.9°F) temperatures below 10°C (50°F) during swimming can result in intense cold shock and quickened breathing. Weather in March »
Weather in April
In Rianxo, Spain, the average seawater temperature in April is 14.2°C (57.6°F). Note: One needs to be cautious in 14.2°C (57.6°F) waters. 13°C (55.4°F) is already forbidding, but sub-10°C (14°F) can seriously disrupt your breathing and lead to a frigid shock, considering one's well-being. Weather in April »
Weather in May
In May, the average sea temperature in Rianxo, Spain, is 15.3°C (59.5°F). Note: Most individuals do not find swimming at 15.3°C (59.5°F) to be enjoyable. Weather in May »
Weather in June
In June, the average sea temperature in Rianxo, Spain, is 16.6°C (61.9°F). Note: Swimming in 16.6°C (61.9°F) is not pleasurable for most people. Breathing control grows increasingly challenging as the water temperature falls under 21°C (69.8°F). Weather in June »
Weather in July
In July, the average sea temperature in Rianxo, Spain, is 17.3°C (63.1°F). Note: For most, swimming in 17.3°C (63.1°F) is not a pleasant activity. Breathing becomes increasingly challenging as water temperature descends from 21°C (69.8°F) to 15°C (59°F). Weather in July »
Weather in August
August and September, with an average sea temperature of 18.3°C (64.9°F), are months with the warmest seawater in Rianxo, Spain. Note: Swimming in 18.3°C (64.9°F) does not offer a pleasant experience for most individuals. Weather in August »
Weather in September
August and September, with an average sea temperature of 18.3°C (64.9°F), are months with the warmest seawater in Rianxo, Spain. Note: For swimming, a surface water temperature of 18.3°C (64.9°F) is not enjoyable for the majority. Weather in September »
Weather in October
In Rianxo, Spain, the average seawater temperature in October is 17.7°C (63.9°F). Note: In water of 17.7°C (63.9°F), the majority of people do not enjoy swimming. Weather in October »
Weather in November
In Rianxo, Spain, in November, the average water temperature is 16.3°C (61.3°F). Note: Swimming is not a pleasant activity for most when the water temperature is 16.3°C (61.3°F). Weather in November »
Weather in December
In Rianxo, Spain, the average seawater temperature in December is 14.8°C (58.6°F). Note: Dipping into 14.8°C (58.6°F) below 10°C (50°F) needs protective wear, or you'd face cold shock and breathing issues swiftly. Weather in December »
Updated: Jan 30, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
When is the sea coldest in Rianxo?
March is the month with the coldest seawater in Rianxo, with an average sea temperature of 13.3°C (55.9°F).
When are the longest days in Rianxo?
The month with the longest days in Rianxo, Spain, is June, with an average of 15h and 18min of daylight.
What months are the sea warmest in Rianxo?
August and September, with an average sea temperature of 18.3°C (64.9°F), are months with the warmest seawater in Rianxo.
When is Daylight Saving Time (DST) in Rianxo?
On Sunday, 27. October 2024, at 03:00, Daylight Saving Time ends, and the time zone changes from CEST to CET. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 02:00, and the time zone reverts from CET to CEST.
What is the month with the shortest days in Rianxo?
December has the shortest days of the year in Rianxo, Spain, with an average of 9h and 6min of daylight.
Average sea temperature
Rianxo, Spain
The best months for swimming (with the highest average sea temperature) are August and September (18.3°C).
The coldest month (with the lowest average sea temperature) is March (13.3°C).
Average daylight
Rianxo, Spain
- Average daylight in January:
9h and 3min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 4min - Average daylight in June:
15h and 2min
- Average daylight in July:
15h and 0min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
