, with a warm, fairly sunny period from December to March and a quite cool period from June to September, during which fogs and low clouds can form. The rains are very rare.
The city is located in the extreme south of Peru, at 18 degrees south latitude, a short distance from the border with Chile, and about 40 km (25 mi) away from the Pacific Ocean. As the city extends into the valley of the Caplina river, the altitude varies a lot, from 400 to 800 meters (1,300 to 2,600 feet), while the central part is at 580 meters (1,900 ft). The airport, from which the weather data is taken, is at 470 meters (1,540 ft).
. Here are the average temperatures.
January is generally a warm to hot month. The average temperature is of
22.9 °C, with a minimum of
17.5 °C and a maximum of
28.2 °C.

On the coldest nights of the month, the temperature usually drops to around
15 °C. However, it dropped to
11 °C in January 1999.

On the warmest days of the month, the temperature usually reaches around
30.5 °C. However, it reached
33 °C in January 2003.

Precipitation amounts to only
0.9 mm, distributed over 0 days.
The day lasts on average 13 hours and 5 minutes.

There are on average 7 hours of sunshine per day. So, the sun shines 54% of the time.
The average humidity is 63%.
The average wind speed is of
9 kph.
February, the warmest month of the year, is generally a warm to hot month. The average temperature is of
23.4 °C, with a minimum of
18.1 °C and a maximum of
28.8 °C.

On the coldest nights of the month, the temperature usually drops to around
16 °C. However, it dropped to
11.8 °C in February 2005.

On the warmest days of the month, the temperature usually reaches around
31 °C. However, it reached
33.2 °C in February 2017.

Precipitation amounts to only
0.8 mm, distributed over 0 days.
The day lasts on average 12 hours and 40 minutes.

There are on average 7 hours of sunshine per day. So, the sun shines 55% of the time.
The average humidity is 64%.
The average wind speed is of
8.9 kph.
March is generally a warm to hot month. The average temperature is of
22.6 °C, with a minimum of
17.1 °C and a maximum of
28 °C.

On the coldest nights of the month, the temperature usually drops to around
14.5 °C. However, it dropped to
12.1 °C in March 2007.

On the warmest days of the month, the temperature usually reaches around
30 °C. However, it reached
33.8 °C in March 2003.

Precipitation amounts to only
0.2 mm, distributed over 0 days.
The day lasts on average 12 hours and 10 minutes.

There are on average 7.5 hours of sunshine per day. So, the sun shines 61% of the time.
The average humidity is 66%.
The average wind speed is of
8.2 kph.
April is generally a warm month. The average temperature is of
20.5 °C, with a minimum of
15.3 °C and a maximum of
25.7 °C.

On the coldest nights of the month, the temperature usually drops to around
13 °C. However, it dropped to
11 °C in April 2007.

On the warmest days of the month, the temperature usually reaches around
28.5 °C. However, it reached
30.8 °C in April 2010.

Precipitation amounts to only
0.4 mm, distributed over 0 days.
The day lasts on average 11 hours and 40 minutes.

There are on average 7.5 hours of sunshine per day. So, the sun shines 63% of the time.
The average humidity is 71%. Hence, the air is normally humid.
The average wind speed is of
7.7 kph.
May is generally a warm month. The average temperature is of
18.2 °C, with a minimum of
13.4 °C and a maximum of
23 °C.

On the coldest nights of the month, the temperature usually drops to around
10 °C. However, it dropped to
8.1 °C in May 2005.

On the warmest days of the month, the temperature usually reaches around
26.5 °C. However, it reached
31.3 °C in May 2010.

Precipitation amounts to only
1.5 mm, distributed over 0 days.
The day lasts on average 11 hours and 20 minutes.

There are on average 5.5 hours of sunshine per day. So, the sun shines 50% of the time.
The average humidity is 76%. Hence, the air is normally humid.
The average wind speed is of
7 kph.
June is generally a very mild month. The average temperature is of
16.2 °C, with a minimum of
11.8 °C and a maximum of
20.7 °C.

On the coldest nights of the month, the temperature usually drops to around
9 °C. However, it dropped to
5.2 °C in June 2007.

On the warmest days of the month, the temperature usually reaches around
23.5 °C. However, it reached
30.1 °C in June 2016.

Precipitation amounts to only
2.3 mm, distributed over 0 days.
The day lasts on average 11 hours and 5 minutes. June 21, the winter solstice, is the shortest day of the year in the Southern Hemisphere.

There are on average 5.5 hours of sunshine per day. So, the sun shines 49% of the time.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is of
6.6 kph.
July, the coldest month of the year, is generally a very mild month. The average temperature is of
15.2 °C, with a minimum of
10.8 °C and a maximum of
19.6 °C.

On the coldest nights of the month, the temperature usually drops to around
8.5 °C. However, it dropped to
6 °C in July 2007.

On the warmest days of the month, the temperature usually reaches around
23 °C. However, it reached
31.6 °C in July 2016.

Precipitation amounts to only
4.4 mm, and all occurs in one day.
The day lasts on average 11 hours and 10 minutes.

There are on average 5.5 hours of sunshine per day. So, the sun shines 50% of the time.
The average humidity is 80%. Hence, the air is normally humid.
The average wind speed is of
6.7 kph.
August is generally a very mild month. The average temperature is of
15.5 °C, with a minimum of
10.9 °C and a maximum of
20 °C.

On the coldest nights of the month, the temperature usually drops to around
8.5 °C. However, it dropped to
4.9 °C in August 2010.

On the warmest days of the month, the temperature usually reaches around
23 °C. However, it reached
32.6 °C in August 1997.

Precipitation amounts to only
5.6 mm, and all occurs in one day.
The day lasts on average 11 hours and 30 minutes.

There are on average 6 hours of sunshine per day. So, the sun shines 53% of the time.
The average humidity is 80%. Hence, the air is normally humid.
The average wind speed is of
7 kph.
September is generally a very mild month. The average temperature is of
16.4 °C, with a minimum of
11.6 °C and a maximum of
21.2 °C.

On the coldest nights of the month, the temperature usually drops to around
9.5 °C. However, it dropped to
6.8 °C in September 2010.

On the warmest days of the month, the temperature usually reaches around
24 °C. However, it reached
26.1 °C in September 1999.

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

There are on average 5 hours of sunshine per day. So, the sun shines 41% of the time.
The average humidity is 78%. Hence, the air is normally humid.
The average wind speed is of
7.9 kph.
October is generally a very mild month. The average temperature is of
17.9 °C, with a minimum of
12.8 °C and a maximum of
22.9 °C.

On the coldest nights of the month, the temperature usually drops to around
11 °C. However, it dropped to
8 °C in October 2007.

On the warmest days of the month, the temperature usually reaches around
25.5 °C. However, it reached
29.2 °C in October 2015.

Precipitation amounts to only
3.4 mm, distributed over 0 days.
The day lasts on average 12 hours and 30 minutes.

There are on average 7.5 hours of sunshine per day. So, the sun shines 60% of the time.
The average humidity is 73%. Hence, the air is normally humid.
The average wind speed is of
9 kph.
November is generally a warm month. The average temperature is of
19.5 °C, with a minimum of
14.3 °C and a maximum of
24.6 °C.

On the coldest nights of the month, the temperature usually drops to around
12.5 °C. However, it dropped to
8.8 °C in November 2010.

On the warmest days of the month, the temperature usually reaches around
26.5 °C. However, it reached
28.2 °C in November 2009.

Precipitation amounts to only
0.5 mm, distributed over 0 days.
The day lasts on average 13 hours and 0 minutes.

There are on average 8 hours of sunshine per day. So, the sun shines 62% of the time.
The average humidity is 70%.
The average wind speed is of
9.4 kph.
December is generally a warm month. The average temperature is of
21.1 °C, with a minimum of
15.9 °C and a maximum of
26.3 °C.

On the coldest nights of the month, the temperature usually drops to around
13.5 °C. However, it dropped to
11.1 °C in December 1993.

On the warmest days of the month, the temperature usually reaches around
28 °C. However, it reached
29.4 °C in December 2016.

Precipitation amounts to only
0.5 mm, distributed over 0 days.
The day lasts on average 13 hours and 10 minutes. December 21, the summer solstice, is the longest day of the year in the Southern Hemisphere.

There are on average 8 hours of sunshine per day. So, the sun shines 61% of the time.
The average humidity is 66%.
The average wind speed is of
9.2 kph.