The best times to visit Castelo Branco for ideal weather are
April 9th to July 22nd
August 13th to November 11th
based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.
Castelo Branco Travel Guide
Other Castelo Branco Travel Info
Weather in Castelo Branco
Average temperatures in Castelo Branco vary greatly. Considering humidity, temperatures feel nice most of the year, excluding some cold weeks in the winter, with a fair chance of precipitation about half of the year. The area is somewhat temperate — in the 45th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Castelo Branco, the hottest months are August, July, and then September. See average monthly temperatures below. The warmest time of year is generally early to mid August where highs are regularly around 92.2°F (33.4°C) with temperatures rarely dropping below 64.9°F (18.3°C) at night.
Castelo Branco Temperatures (Fahrenheit)
Castelo Branco Temperatures (Celsius)
The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.
Castelo Branco Perceived Temperature (F)
Castelo Branco Perceived Temperature (C)
Average Castelo Branco Temperatures by Month
Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.
|Month||Avg. High (°F)||Avg. Mean (°F)||Avg. Low (°F)|
|Month||Avg. High (°C)||Avg. Mean (°C)||Avg. Low (°C)|
Precipitation (Rain or Snow)
If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Castelo Branco are August, July, and then June. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early to mid July. For example, on the week of July 9th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in late December with an average of 2 days of significant precipitation the week of December 24th.
When can you find snow in Castelo Branco? Weather stations report a bit of annual snow likely to be deepest around January, especially close to early to mid January. The best time to ski (if at all) in Castelo Branco is often around around January 8th when fresh powder is deepest. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.
Chance of Precipitation
The graph below shows the % chance of rainy and snowy days in Castelo Branco.
Snow on the Ground
The graph below shows the average snow on the ground in Castelo Branco (in).
Average Rain and Snow by Month
|Month||Daily Chance of Rain||Average Snow Depth (in)||Total Precipitation (in)|
|Month||Daily Chance of Rain||Average Snow Depth (cm)||Total Precipitation (cm)|
Humidity and Wind
Castelo Branco has some very humid months, and slightly dry months in the opposite season. The least humid month is August (32.7% relative humidity), and the most humid month is January (74.8%).
Wind in Castelo Branco is usually calm. The windiest month is March, followed by February and July. March’s average wind speed of around 6.4 knots (7.4 MPH or 11.9 KPH) is considered “a light breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early March where average top sustained speeds reach 12.2 knots, which is considered a moderate breeze.
Relative Humidity (%)
The graph below shows the average % humidity by month in Castelo Branco.
The graph below shows wind speed (max and average) in knots.
Average Wind Speeds
Show Wind Speeds
All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.
|Month||Avg. Wind||Avg. Wind Feel||Sustained High Wind||High Wind Feel|
|Jan||5.5||Light breeze||9.8||Gentle breeze|
|Feb||6.2||Light breeze||11.1||Significant breeze|
|Mar||6.4||Light breeze||11.4||Gentle breeze|
|Apr||5.9||Light breeze||10.5||Gentle breeze|
|May||5.8||Light breeze||10.4||Gentle breeze|
|Jun||5.7||Light breeze||10.5||Gentle breeze|
|Jul||6.1||Light breeze||11.2||Gentle breeze|
|Aug||5.7||Light breeze||10.7||Gentle breeze|
|Sep||4.8||Light breeze||9.2||Gentle breeze|
|Oct||4.8||Light breeze||8.5||Gentle breeze|
|Nov||5.6||Light breeze||9.8||Gentle breeze|
|Dec||5.1||Light breeze||9||Gentle breeze|
Show Relative Humidity by Month
|Month||Avg. Relative Humidity|
Is it Safe to Travel to Castelo Branco?
Our best data indicates this area is generally safe. As of Oct 07, 2019 there are no travel advisories or warnings for Portugal; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Aug 22, 2019.
The Busiest and Least Crowded Months
The busiest month for tourism in Castelo Branco, Portugal is May, followed by August and July. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Castelo Branco in November. Those willing to visit at these times will likely find it the least expensive month.
Estimated Tourism by Month
Most Popular Months to Visit
Overall Castelo Branco Travel Experience by Season
Spring (March through May)
Humidity and temperatures combine to make this season feel moderate. Highs range from 81.1°F (27.3°C) and 60.9°F (16.1°C) with warmer temperatures in the later months. Rain is somewhat common with 4 to 6 days of significant precipitation per month. Spring is the second busiest for tourism, which makes it a good time for those looking for things to do.
Summer (June through August)
The middle-year months have very comfortable weather with high temperatures that are quite warm. These months see the least precipitation with 0 to 2 days of precipitation per month. June – August is the busiest season for tourism in Castelo Branco, so lodging and other accommodations may cost more than usual.
Fall (September through November)
Fall daily highs range from 86.5°F (30.3°C) and 55.1°F (12.8°C), which will feel comfortable given the humidity and wind. It rains or snows a significant amount: 3 to 6 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.
Winter (December through February)
Weather is too cold this time of year in Castelo Branco to be enjoyable for warm weather travelers. The average high during this season is between 60.9°F (16.1°C) and 53.3°F (11.8°C). On average, it rains or snows a fair amount: consistently 7 times per month. These times of year are fairly slow with tourists.