The city is located in the central part of Portugal, in the east, near the border with Spain, at an altitude of 385 meters (1,250 ft).
However, given the altitude and the distance from the sea, there may also be some cold periods, with highs of 7/8 °C (45/46 °F) or lower.
Snow in Castelo Branco is very rare. Snowfalls occurred in February 1983 and January 2010.
, from June to mid-September, is hot and sunny, with very rare rains. We are in the hot zone of Portugal, the eastern one, which receives the least influence from the ocean.
Rarely, there may be cool periods, in which the night temperature can drop to 10 °C (50 °F) or even below. However, from mid-June to early September, there can be very hot periods, in which the temperature reaches 38/40 °C (100/104 °F).
to visit Castelo Branco are spring and autumn, ie from mid-April to mid-June and from mid-September to early October. In summer, as we have said, there can be periods of scorching heat.
. Here are the average temperatures.
January, the coldest month of the year, is generally a mild month. The average temperature is of
8.7 °C, with a minimum of
4.8 °C and a maximum of
12.6 °C.

On the coldest nights of the month, the temperature usually drops to around
0.5 °C. However, it dropped to
-2.4 °C in January 2003.

On the warmest days of the month, the temperature usually reaches around
18 °C. However, it reached
22.1 °C in January 2008.

Precipitation amounts to
110 mm, distributed over 8 days.
The day lasts on average 9 hours and 40 minutes.

There are on average 5 hours of sunshine per day. So, the sun shines 51% of the time.
The average humidity is 80%. Hence, the air is normally humid.
February is generally a mild month. The average temperature is of
10 °C, with a minimum of
5.5 °C and a maximum of
14.5 °C.

On the coldest nights of the month, the temperature usually drops to around
2 °C. However, it dropped to
-2 °C in February 2012.

On the warmest days of the month, the temperature usually reaches around
20.5 °C. However, it reached
23.2 °C in February 2020.

Precipitation amounts to
60 mm, distributed over 6 days.
The day lasts on average 10 hours and 40 minutes.

There are on average 6 hours of sunshine per day. So, the sun shines 56% of the time.
The average humidity is 73%. Hence, the air is normally humid.
March is generally a mild month. The average temperature is of
12.5 °C, with a minimum of
7.3 °C and a maximum of
17.6 °C.

On the coldest nights of the month, the temperature usually drops to around
3 °C. However, it dropped to
-4.8 °C in March 2005.

On the warmest days of the month, the temperature usually reaches around
23.5 °C. However, it reached
27.5 °C in March 2015.

Precipitation amounts to
35 mm, distributed over 4 days.
The day lasts on average 12 hours and 0 minutes.

There are on average 8 hours of sunshine per day. So, the sun shines 65% of the time.
The average humidity is 61%.
April is generally a mild month. The average temperature is of
14.2 °C, with a minimum of
8.9 °C and a maximum of
19.6 °C.

On the coldest nights of the month, the temperature usually drops to around
4 °C. However, it dropped to
1 °C in April 2020.

On the warmest days of the month, the temperature usually reaches around
27 °C. However, it reached
30.5 °C in April 1997.

Precipitation amounts to
60 mm, distributed over 8 days.
The day lasts on average 13 hours and 20 minutes.

There are on average 7.5 hours of sunshine per day. So, the sun shines 58% of the time.
The average humidity is 62%.
May is generally a very mild month. The average temperature is of
17.6 °C, with a minimum of
11.6 °C and a maximum of
23.6 °C.

On the coldest nights of the month, the temperature usually drops to around
6 °C. However, it dropped to
2.9 °C in May 2001.

On the warmest days of the month, the temperature usually reaches around
32 °C. However, it reached
35.5 °C in May 2001.

Precipitation amounts to
65 mm, distributed over 7 days.
The day lasts on average 14 hours and 25 minutes. So the days are long.

There are on average 8.5 hours of sunshine per day. So, the sun shines 60% of the time.
The average humidity is 59%.
June is generally a warm month. However, there are remarkable differences between night and day. The average temperature is of
22.1 °C, with a minimum of
15.2 °C and a maximum of
29 °C.

On the coldest nights of the month, the temperature usually drops to around
9.5 °C. However, it dropped to
7.3 °C in June 2002.

On the warmest days of the month, the temperature usually reaches around
36.5 °C. However, it reached
41.3 °C in June 2017.

Precipitation amounts to
25 mm, distributed over 3 days.
The day lasts on average 15 hours and 0 minutes. So the days are long. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.

There are on average 10.5 hours of sunshine per day. So, the sun shines 70% of the time.
The average humidity is 49%.
July is generally a warm to hot month. However, there are remarkable differences between night and day. The average temperature is of
24.7 °C, with a minimum of
17.1 °C and a maximum of
32.3 °C.

On the coldest nights of the month, the temperature usually drops to around
12 °C. However, it dropped to
8.9 °C in July 1997.

On the warmest days of the month, the temperature usually reaches around
38.5 °C. However, it reached
41.6 °C in July 2017.

Precipitation amounts to
10 mm, and all occurs in one day.
The day lasts on average 14 hours and 35 minutes. So the days are long.

There are on average 11.5 hours of sunshine per day. So, the sun shines 79% of the time.
The average humidity is 41%.
August, the hottest month of the year, is generally a warm to hot month. However, there are remarkable differences between night and day. The average temperature is of
25.2 °C, with a minimum of
17.7 °C and a maximum of
32.8 °C.

On the coldest nights of the month, the temperature usually drops to around
12.5 °C. However, it dropped to
9.3 °C in August 2011.

On the warmest days of the month, the temperature usually reaches around
39 °C. However, it reached
43.5 °C in August 2018.

Precipitation amounts to
10 mm, and all occurs in one day.
The day lasts on average 13 hours and 40 minutes.

There are on average 11 hours of sunshine per day. So, the sun shines 79% of the time.
The average humidity is 43%.
September is generally a warm month. The average temperature is of
22.2 °C, with a minimum of
15.9 °C and a maximum of
28.4 °C.

On the coldest nights of the month, the temperature usually drops to around
11.5 °C. However, it dropped to
8.9 °C in September 2000.

On the warmest days of the month, the temperature usually reaches around
35 °C. However, it reached
41.4 °C in September 2016.

Precipitation amounts to
35 mm, distributed over 5 days.
The day lasts on average 12 hours and 25 minutes.

There are on average 8.5 hours of sunshine per day. So, the sun shines 68% of the time.
The average humidity is 53%.
October is generally a very mild month. The average temperature is of
17.4 °C, with a minimum of
12.4 °C and a maximum of
22.3 °C.

On the coldest nights of the month, the temperature usually drops to around
6.5 °C. However, it dropped to
3.8 °C in October 2018.

On the warmest days of the month, the temperature usually reaches around
29 °C. However, it reached
34.5 °C in October 2017.

Precipitation amounts to
105 mm, distributed over 8 days.
The day lasts on average 11 hours and 5 minutes.

There are on average 6.5 hours of sunshine per day. So, the sun shines 57% of the time.
The average humidity is 69%.
November is generally a mild month. The average temperature is of
11.8 °C, with a minimum of
7.8 °C and a maximum of
15.7 °C.

On the coldest nights of the month, the temperature usually drops to around
4 °C. However, it dropped to
-0.6 °C in November 2013.

On the warmest days of the month, the temperature usually reaches around
21.5 °C. However, it reached
24.9 °C in November 2007.

Precipitation amounts to
120 mm, distributed over 9 days.
The day lasts on average 10 hours and 0 minutes.

There are on average 5 hours of sunshine per day. So, the sun shines 51% of the time.
The average humidity is 78%. Hence, the air is normally humid.
December is generally a mild month. The average temperature is of
9.1 °C, with a minimum of
5.4 °C and a maximum of
12.8 °C.

On the coldest nights of the month, the temperature usually drops to around
1.5 °C. However, it dropped to
-2.5 °C in December 2009.

On the warmest days of the month, the temperature usually reaches around
17.5 °C. However, it reached
19.5 °C in December 1996.

Precipitation amounts to
130 mm, distributed over 10 days.
The day lasts on average 9 hours and 25 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.

There are on average 4 hours of sunshine per day. So, the sun shines 42% of the time.
The average humidity is 83%. Hence, the air is normally humid.