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Guarnizo Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Guarnizo.
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Climate overview of Guarnizo
Guarnizo, Cantabria, Spain, sees big temperature differences between seasons, with August peaking at 24°C (75°F) and January dropping to 13°C (55°F).
With around 1224 mm (48 in) of annual rainfall, Guarnizo has a notably wet climate. However, this rainfall is not evenly distributed, the city has warm summers and mild winters. The wettest month is November. July is the sunniest month, averaging 7.5 hours of sunshine per day.
Guarnizo Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Guarnizo - and find the best time to visit.
Monthly Temperature in Guarnizo
Visitors to Guarnizo can expect significant temperature changes throughout the year. Average daytime temperatures reach a comfortable 24°C (75°F) in August. In January, the coolest month of the year, temperatures drop to a moderate 13°C (55°F).
At night, temperatures range from around 17°C (63°F) in August to 6°C (43°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Guarnizo
Guarnizo is known for its substantial rainfall, with annual precipitation reaching 1224 mm (48 in). Guarnizo can be quite wet during November, receiving approximately 146 mm (5.7 in) of precipitation over 18 rainy days.
In contrast, during the driest month (July), you will experience much drier conditions, with 67 mm (2.6 in) of precipitation spread across 10 rainy days. For more details, please visit our Guarnizo Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Guarnizo
Guarnizo can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 7.5 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 2.9 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Data from: Santander, Spain (7 KM, 4 Miles).
Daily hours of sunshine
Data from: Santander, Spain (7 KM, 4 Miles).
Water Temperature in Guarnizo
The mean water temperature over the year ranges from 12°C (54°F) in January to 20°C (68°F) in August.
Water temperature over the year
Data from: Santander, Spain (7 KM, 4 Miles).
Humidity in Guarnizo by Month
The relative humidity is high throughout the year in Guarnizo.
The city experiences its highest humidity in August, reaching 78%. In January, the humidity drops to its lowest level at 71%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Data from: Santander, Spain (7 KM, 4 Miles).
Wind Speed in Guarnizo
The mean wind speed over the year ranges from 2 m/s (4 knots) in February, August and September to 4 m/s (8 knots) in January, March, November and December. What does this mean?
The mean monthly wind speed over the year (meters per second)
Data from: Santander, Spain (7 KM, 4 Miles).
Best Time to Visit Guarnizo
The most comfortable overall weather for exploring Guarnizo is usually found in June, July, August and September. Conditions are generally least comfortable in January, February and December.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
wet
Feb
wet
Mar
mixed
Apr
mixed
May
very good
Jun
excellent
Jul
excellent
Aug
excellent
Sep
excellent
Oct
very good
Nov
mixed
Dec
wet
- Best overall: June, July, August and September
- Warmest weather: July and August
- Most sunshine: June and July
- Fewest rainy days: June, July, August and September
- Best for swimming: August, with water temperatures around 20°C (68°F).
- Seasonal pattern: Warm summers and mild winters
Frequently asked questions about the climate in Guarnizo
What is the best time to visit Guarnizo?
June, July, August and September typically offer the most optimal weather in Guarnizo. In contrast, January, February and December tend to have less optimal conditions. Guarnizo has warm summers and mild winters.
What temperatures can I expect in Guarnizo?
Daytime highs range from 13°C (55°F) in January to 24°C (75°F) in August. Nighttime lows range from 6°C (43°F) to 17°C (63°F). Temperatures vary considerably through the year.
How much rain does Guarnizo get?
Annual rainfall is around 1224 mm (48 in). November is the wettest month with 146 mm (5.7 in), while July is the driest with 67 mm (2.6 in).
How sunny is Guarnizo?
Guarnizo receives around 1,912 hours of sunshine per year. July is the sunniest month with 226 hours, while December is the cloudiest with just 88 hours.
Guarnizo 3-Day Forecast
Guarnizo on the map
Guarnizo is highlighted - select any city to see its climate.
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