Climate in Trujillo (Peru)

In Trujillo, Peru's third city, the climate is subtropical desert, with a warm season from January to March and a relatively cool season from June to November.
The city is located in the northern part of the Peruvian coast, in La Libertad region, and despite its location, about 8 degrees south of the Equator, the climate is arid and very mild because of the Humboldt sea current; at this latitude, the climate begins to resemble that of the Peruvian capital, Lima.
The temperature range is very small: the temperature almost never drops below 10 °C (50 °F) on winter nights, while during the day, it rarely reaches 30 °C (86 °F) in the summer months. The landscape in the region is practically desert, except in areas where streams flowing from the Andes are used to irrigate fields. To find somewhat green areas, you have to go the east, at the foot of the Andes. During winter, however, moisture can condense into mists and droplets that can be deposited on the ground (a phenomenon called garúa). Some night and morning fogs can not be excluded even in summer.

The rains are definitely scarce: on average, only a few millimeters of rain fall per year, and it doesn't rain for long periods.

The climate of Trujillo is affected by the cycles of El Niño, the phenomenon consisting in an abnormal warming of the Pacific waters. In El Niño years, the temperature of the air (and also that of the sea) increases, especially in the early months of the year, when there can be long periods with almost tropical heat: for example, in February 1998, the average daily temperature has been 27.2 °C (81 °F), and in April 1983, it has been 27.5 °C (81.5 °F), with a maximum of 34.5 °C (94 °F).
In contrast, as regards to the rains, they tend to remain scarce or absent also in these periods (while more to the north, in the regions of Tumbes and Piura, and partly also in the Lambayeque Region, see Chiclayo, in El Niño years, rainfall increases as well).
During La Niña years, the phenomenon opposite to that of El Niño, the winter temperatures drop below the average, and there are long periods with highs below 20 °C (68 °F) and lows below 15 °C (59 °F).



All in all, the amount of sunshine in Trujillo is decent in summer, while in winter, from June to September, it becomes quite mediocre, since the Humboldt current can cause fog and low clouds.

Usually, the sea in Trujillo is never very warm: it's warm enough for swimming in February and March, while it gets very cool from July to November, when it drops down to 18/19 °C (64/66 °F).
However, in El Niño years, the sea in this area warms up a lot, especially in the early months of the year.

Trujillo - Climate data

In Trujillo, the average temperature of the coldest month (September) is of 18 °C (64.3 °F), that of the warmest month (February) is of 23 °C (73.4 °F). Here are the average temperatures.
Precipitation amounts to 5 millimeters (0.2 inches) per year: it is therefore at a desert level. In practice, it never rains.
The sea temperature ranges from 17.5 °C (64 °F) in September, October to
There are on average around 2070 sunshine hours per year. Here are the average hours of sunshine per day.

Trujillo - Weather by month

Based on the period 1991-2020

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January is generally a warm month. The average temperature is of 22 °C (72 °F), with a minimum of 18.7 °C (65.7 °F) and a maximum of 25.4 °C (77.7 °F).
On the coldest nights of the month, the temperature usually drops to around 16 °C (60.5 °F). However, it dropped to 12.6 °C (54.7 °F) in January 2009.
On the warmest days of the month, the temperature usually reaches around 27.5 °C (82 °F). However, it reached 31.8 °C (89.2 °F) in January 1998.
Precipitation amounts to only 1.2 mm (0 in), and all occurs in one day.
The day lasts on average 12 hours and 30 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 53% of the time.
The average humidity is 81%. Hence, the air is normally humid.
The average wind speed is 13 kph (8 mph).
The average sea temperature is of 22 °C (71.5 °F). Therefore, the sea is cool for swimming.

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February, the warmest month of the year, is generally a warm to hot, muggy month. The average temperature is of 23 °C (73 °F), with a minimum of 19.7 °C (67.5 °F) and a maximum of 26.2 °C (79.2 °F).
On the coldest nights of the month, the temperature usually drops to around 18.5 °C (65.5 °F). However, it dropped to 14.5 °C (58.1 °F) in February 1993.
On the warmest days of the month, the temperature usually reaches around 28.5 °C (83 °F). However, it reached 31.6 °C (88.9 °F) in February 1998.
Precipitation amounts to only 0.8 mm (0 in), and all occurs in one day.
The day lasts on average 12 hours and 25 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 54% of the time.
The average humidity is 81%. Hence, the air is normally humid.
The average wind speed is 12 kph (7 mph).
The average sea temperature is of 23.5 °C (74 °F). Therefore, the sea can be considered barely acceptable for swimming.

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March is generally a warm to hot, muggy month. The average temperature is of 22.9 °C (73 °F), with a minimum of 19.7 °C (67.5 °F) and a maximum of 26.1 °C (79.1 °F).
On the coldest nights, the temperature usually drops to around 17.5 °C (63 °F). However, it dropped to 13 °C (55.4 °F) in March 2000.
On the warmest days, the temperature usually reaches around 28.5 °C (83 °F). However, it reached 31.6 °C (88.9 °F) in March 2017.
Precipitation amounts to only 1.8 mm (0.1 in), and all occurs in one day.
The day lasts on average 12 hours and 5 minutes.
There are on average 5.5 hours of sunshine per day. So, the sun shines 47% of the time.
The average humidity is 81%. Hence, the air is normally humid.
The average wind speed is 12 kph (8 mph).
The average sea temperature is of 23 °C (74 °F). Therefore, the sea can be considered barely acceptable for swimming.

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April is generally a warm month. The average temperature is of 21 °C (70 °F), with a minimum of 17.9 °C (64.2 °F) and a maximum of 24 °C (75.3 °F).
On the coldest nights, the temperature usually drops to around 16 °C (61 °F). However, it dropped to 12 °C (53.6 °F) in April 2006.
On the warmest days, the temperature usually reaches around 26.5 °C (80 °F). However, it reached 30.5 °C (86.9 °F) in April 1992.
Precipitation amounts to only 0.1 mm (0 in), and all occurs in one day.
The day lasts on average 11 hours and 55 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 50% of the time.
The average humidity is 84%. Hence, the air is normally humid.
The average wind speed is 13 kph (8 mph).
The average sea temperature is of 21.5 °C (70.5 °F). Therefore, the sea is cool for swimming.

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May is generally a warm month. The average temperature is of 20 °C (68 °F), with a minimum of 17 °C (62.7 °F) and a maximum of 22.9 °C (73.2 °F).
On the coldest nights, the temperature usually drops to around 16 °C (60.5 °F). However, it dropped to 11.2 °C (52.2 °F) in May 2007.
On the warmest days, the temperature usually reaches around 25 °C (77 °F). However, it reached 28.3 °C (82.9 °F) in May 1993.
Precipitation amounts to only 0.1 mm (0 in), distributed over 0 days.
The day lasts on average 11 hours and 40 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 56% of the time.
The average humidity is 84%. Hence, the air is normally humid.
The average wind speed is 13 kph (8 mph).
The average sea temperature is of 20.5 °C (68.5 °F). Therefore, the sea is cool for swimming.

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June is generally a warm month. The average temperature is of 19.2 °C (67 °F), with a minimum of 16.5 °C (61.7 °F) and a maximum of 22 °C (71.6 °F).
On the coldest nights, the temperature usually drops to around 15 °C (59 °F). However, it dropped to 10 °C (50 °F) in June 2007.
On the warmest days, the temperature usually reaches around 24 °C (75.5 °F). However, it reached 28.4 °C (83.1 °F) in June 1992.
Precipitation amounts to only 0 mm (0 in), so on average it never rains in the whole month.
The day lasts on average 11 hours and 40 minutes.
There are on average 5 hours of sunshine per day. So, the sun shines 42% of the time.
The average humidity is 84%. Hence, the air is normally humid.
The average wind speed is 12 kph (8 mph).
The average sea temperature is of 19.5 °C (67 °F). Therefore, the sea is very cool for swimming.

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July is generally a warm month. The average temperature is of 18.5 °C (65 °F), with a minimum of 15.8 °C (60.5 °F) and a maximum of 21.2 °C (70.2 °F).
On the coldest nights of the month, the temperature usually drops to around 14 °C (57 °F). However, it dropped to 11 °C (51.8 °F) in July 2003.
On the warmest days of the month, the temperature usually reaches around 23 °C (74 °F). However, it reached 26.7 °C (80.1 °F) in July 1997.
Precipitation amounts to only 0 mm (0 in), so on average it never rains in the whole month.
The day lasts on average 11 hours and 40 minutes.
There are on average 4.5 hours of sunshine per day. So, the sun shines 39% of the time.
The average humidity is 84%. Hence, the air is normally humid.
The average wind speed is 12 kph (8 mph).
The average sea temperature is of 18.5 °C (65.5 °F). Therefore, the sea is very cool for swimming.

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August is generally a very mild month. The average temperature is of 18 °C (64 °F), with a minimum of 15.3 °C (59.6 °F) and a maximum of 20.6 °C (69.2 °F).
On the coldest nights of the month, the temperature usually drops to around 14 °C (57.5 °F). However, it dropped to 11 °C (51.8 °F) in August 2007.
On the warmest days of the month, the temperature usually reaches around 22.5 °C (72.5 °F). However, it reached 26.5 °C (79.7 °F) in August 1997.
Precipitation amounts to only 0 mm (0 in), so on average it never rains in the whole month.
The day lasts on average 11 hours and 55 minutes.
There are on average 4 hours of sunshine per day. So, the sun shines 34% of the time.
The average humidity is 84%. Hence, the air is normally humid.
The average wind speed is 13 kph (8 mph).
The average sea temperature is of 18 °C (64.5 °F). Therefore, the sea is cold for swimming.

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September, the coldest month of the year, is generally a very mild month. The average temperature is of 18 °C (64 °F), with a minimum of 15.2 °C (59.3 °F) and a maximum of 20.7 °C (69.3 °F).
On the coldest nights, the temperature usually drops to around 13.5 °C (56 °F). However, it dropped to 10 °C (50 °F) in September 2007.
On the warmest days, the temperature usually reaches around 22.5 °C (72 °F). However, it reached 27.4 °C (81.3 °F) in September 1997.
Precipitation amounts to only 0 mm (0 in), so on average it never rains in the whole month.
The day lasts on average 12 hours and 5 minutes.
There are on average 4.5 hours of sunshine per day. So, the sun shines 38% of the time.
The average humidity is 85%. Hence, the air is normally humid.
The average wind speed is 14 kph (9 mph).
The average sea temperature is of 17.5 °C (63.5 °F). Therefore, the sea is cold for swimming.

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October is generally a warm month. The average temperature is of 18.2 °C (65 °F), with a minimum of 15.2 °C (59.4 °F) and a maximum of 21.1 °C (69.9 °F).
On the coldest nights, the temperature usually drops to around 14 °C (57 °F). However, it dropped to 9 °C (48.2 °F) in October 2007.
On the warmest days, the temperature usually reaches around 23 °C (73.5 °F). However, it reached 26 °C (78.8 °F) in October 1997.
Precipitation amounts to only 0.2 mm (0 in), distributed over 0 days.
The day lasts on average 12 hours and 20 minutes.
There are on average 5.5 hours of sunshine per day. So, the sun shines 45% of the time.
The average humidity is 84%. Hence, the air is normally humid.
The average wind speed is 14 kph (9 mph).
The average sea temperature is of 17.5 °C (64 °F). Therefore, the sea is cold for swimming.

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November is generally a warm month. The average temperature is of 19 °C (66 °F), with a minimum of 16.1 °C (61 °F) and a maximum of 22 °C (71.5 °F).
On the coldest nights, the temperature usually drops to around 14.5 °C (58 °F). However, it dropped to 8.8 °C (47.8 °F) in November 2000.
On the warmest days, the temperature usually reaches around 24 °C (75 °F). However, it reached 27.8 °C (82 °F) in November 1997.
Precipitation amounts to only 0 mm (0 in), so on average it never rains in the whole month.
The day lasts on average 12 hours and 30 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 50% of the time.
The average humidity is 82%. Hence, the air is normally humid.
The average wind speed is 13 kph (8 mph).
The average sea temperature is of 18.5 °C (65.5 °F). Therefore, the sea is very cool for swimming.

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December is generally a warm month. The average temperature is of 20.3 °C (69 °F), with a minimum of 17.2 °C (62.9 °F) and a maximum of 23.5 °C (74.2 °F).
On the coldest nights of the month, the temperature usually drops to around 16 °C (60.5 °F). However, it dropped to 11.5 °C (52.7 °F) in December 2010.
On the warmest days of the month, the temperature usually reaches around 25.5 °C (78 °F). However, it reached 29.5 °C (85.1 °F) in December 1997.
Precipitation amounts to only 0.1 mm (0 in), distributed over 0 days.
The day lasts on average 12 hours and 35 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 53% of the time.
The average humidity is 82%. Hence, the air is normally humid.
The average wind speed is 13 kph (8 mph).
The average sea temperature is of 20 °C (68.5 °F). Therefore, the sea is very cool for swimming.