Castelo Novo Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Castelo Novo.
Climate overview of Castelo Novo
Temperatures in Castelo Novo, Centro Region, Portugal, vary greatly throughout the year. July is the hottest month at 31°C (88°F), while January is the coldest at 12°C (54°F).
The city receives around 910 mm (36 in) of rainfall per year. It experiences a distinct dry season from June to August, with very warm summers and mild winters. October is the wettest month and July the driest. July is the sunniest month, averaging 11.5 hours of sunshine per day.
Castelo Novo Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Castelo Novo - and find the best time to visit.
Monthly Temperature in Castelo Novo
The climate in Castelo Novo is known for significant temperature differences throughout the year, making the weather dynamic. On average, daytime temperatures range from a very warm 31°C (88°F) in July to a moderate 12°C (54°F) in January.
Nighttime temperatures range from 17°C (63°F) in July to 4°C (39°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Castelo Novo
Generally, Castelo Novo receives mid-range precipitation levels, with 910 mm (36 in) annually. The seasons in Castelo Novo bring significant changes in precipitation. The wettest month, October, receives high rainfall, with an average of 134 mm (5.3 in) of precipitation. This rainfall is distributed across 12 rainy days.
In contrast, the driest month, July, experiences much less rainfall, totaling 9.2 mm (0.4 in) over 5 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Castelo Novo 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 Castelo Novo
In Castelo Novo, summer days are longer and more sunny, with daily sunshine hours peaking at 11.5 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 3.5 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Castelo Novo by Month
The relative humidity is high throughout the year in Castelo Novo.
The city experiences its highest humidity in February, reaching 81%. In August, the humidity drops to its lowest level at 55%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Castelo Novo
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May, June and September
- Warmest weather: July and August
- Most sunshine: July and August
- Fewest rainy days: July and August
- Seasonal pattern: A distinct dry season from June to August, with very warm summers and mild winters
Frequently asked questions about the climate in Castelo Novo
What is the best time to visit Castelo Novo?
May, June and September typically offer the most optimal weather in Castelo Novo. In contrast, January and December tend to have less optimal conditions. Castelo Novo has a distinct dry season from June to August, with very warm summers and mild winters.
What temperatures can I expect in Castelo Novo?
Daytime highs range from 12°C (54°F) in January to 31°C (88°F) in July. Nighttime lows range from 4°C (39°F) to 17°C (63°F). Temperatures vary considerably through the year.
How much rain does Castelo Novo get?
Annual rainfall is around 910 mm (36 in). October is the wettest month with 134 mm (5.3 in), while July is the driest with 9.2 mm (0.4 in).
How sunny is Castelo Novo?
Castelo Novo receives around 2,427 hours of sunshine per year. July is the sunniest month with 345 hours, while December is the cloudiest with just 105 hours. Overall, Castelo Novo enjoys abundant sunshine.
Castelo Novo 3-Day Forecast
Castelo Novo 3-Day Forecast
Castelo Novo on the map
Castelo Novo is highlighted - select any city to see its climate.
Popular this month
Where to go in July - average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
7 of the most budget-friendly destinations in Europe
Discover Europe's top budget-friendly destinations including Budapest, Kotor, Krakow, and more, perfect for affordable and exciting travel.
Alentejo, where time stands still
The quiet region is known for its rolling green hills and it is a true hiking paradise. Architectural highlights can be found in the castles, ancient monasteries or when exploring the countless charming villages.
An eco-friendly guide to Lagos travel
Lagos, Portugal is a great place to visit while being careful about your environmental footprint. Here you find some tips about environmentally places to stay, where to eat and how to get around in the area.
What to do in Lisbon: our tips for an unforgettable city trip
Lisbon is a bustling city with many special places. In this article you find the best sights, good restaurants and nice places to stay in Lisbon.