Climate in Marcona (Peru)

The climate of San Juan de Marcona is subtropical desert, with a warm season from December to April and a cool, humid and cloudy season from June to September.
The small city is located in southern Peru, in the Ica region, on the coast of the Pacific Ocean, at 15 degrees south latitude. About 70 km (43 mi) to the north are the famous Nazca Lines, while 40 km (25 mi) to the southeast is Puerto de Lomas.
The wind blows moderate from the ocean all year round, increasing the feeling of coolness.
As happens in Lima, the Humboldt Current makes the climate extremely dry, but produces fog and low clouds, especially in winter.
Here too, during El Niño years, both the sea and the air temperatures increase.

Marcona - Climate data

The average temperature of the coldest month (August) is of 15.8 °C (60.4 °F), that of the warmest month (March) is of 22.6 °C (72.7 °F). Here are the average temperatures.
Precipitation amounts to 0 millimeters (0 inches) per year: it is therefore at a desert level. In practice, it never rains.
The sea temperature ranges from 16 °C (61 °F) in August to 22.5 °C (72 °F) in February. Here are the average sea temperatures.

Marcona - Weather by month

Based on the period 1991-1997

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January is generally a warm month. The average temperature is of 22.4 °C (72 °F), with a minimum of 18.5 °C (65.2 °F) and a maximum of 26.3 °C (79.4 °F).
On the coldest nights of the month, the temperature usually drops to around 16 °C (60.5 °F).
On the warmest days of the month, the temperature usually reaches around 28 °C (83 °F).
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 55 minutes.
The average humidity is 74%. Hence, the air is normally humid.
The average wind speed is 25 kph (15 mph).
The average sea temperature is of 22 °C (72 °F). Therefore, the sea is cool for swimming.

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February is generally a warm to hot, muggy month. The average temperature is of 22.6 °C (73 °F), with a minimum of 18.2 °C (64.7 °F) and a maximum of 27 °C (80.6 °F).
On the coldest nights of the month, the temperature usually drops to around 17 °C (62.5 °F).
On the warmest days of the month, the temperature usually reaches around 29.5 °C (84.5 °F).
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 35 minutes.
The average humidity is 73%. Hence, the air is normally humid.
The average wind speed is 26 kph (16 mph).
The average sea temperature is of 22.5 °C (72.5 °F). Therefore, the sea can be considered barely acceptable for swimming.

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March, the warmest month of the year, is generally a warm to hot, muggy month. The average temperature is of 22.6 °C (73 °F), with a minimum of 18.3 °C (65 °F) and a maximum of 26.9 °C (80.4 °F).
On the coldest nights, the temperature usually drops to around 16 °C (60.5 °F).
On the warmest days, the temperature usually reaches around 29 °C (84 °F).
Precipitation amounts to only 1 mm (0 in), distributed over 0 days.
The day lasts on average 12 hours and 10 minutes.
The average humidity is 73%. Hence, the air is normally humid.
The average wind speed is 26 kph (16 mph).
The average sea temperature is of 22 °C (71 °F). Therefore, the sea is cool for swimming.

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April is generally a warm month. The average temperature is of 20.6 °C (69 °F), with a minimum of 16.3 °C (61.3 °F) and a maximum of 25 °C (77 °F).
On the coldest nights, the temperature usually drops to around 14.5 °C (58.5 °F).
On the warmest days, the temperature usually reaches around 26.5 °C (80 °F).
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.
The average humidity is 73%. Hence, the air is normally humid.
The average wind speed is 26 kph (16 mph).
The average sea temperature is of 20 °C (68.5 °F). Therefore, the sea is very cool for swimming.

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May is generally a warm month. The average temperature is of 19.5 °C (67 °F), with a minimum of 15.9 °C (60.6 °F) and a maximum of 23.1 °C (73.5 °F).
On the coldest nights, the temperature usually drops to around 13.5 °C (56 °F).
On the warmest days, the temperature usually reaches around 25.5 °C (78 °F).
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 25 minutes.
The average humidity is 76%. Hence, the air is normally humid.
The average wind speed is 26 kph (16 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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June is generally a very mild month. The average temperature is of 17.1 °C (63 °F), with a minimum of 13.6 °C (56.5 °F) and a maximum of 20.7 °C (69.2 °F).
On the coldest nights, the temperature usually drops to around 11.5 °C (52.5 °F).
On the warmest days, the temperature usually reaches around 22.5 °C (73 °F).
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 10 minutes.
The average humidity is 76%. Hence, the air is normally humid.
The average wind speed is 25 kph (15 mph).
The average sea temperature is of 17.5 °C (63.5 °F). Therefore, the sea is cold for swimming.

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July is generally a very mild month. The average temperature is of 16.1 °C (61 °F), with a minimum of 12.9 °C (55.2 °F) and a maximum of 19.3 °C (66.7 °F).
On the coldest nights of the month, the temperature usually drops to around 10.5 °C (51.5 °F).
On the warmest days of the month, the temperature usually reaches around 21 °C (69.5 °F).
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 20 minutes.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is 25 kph (15 mph).
The average sea temperature is of 16.5 °C (61.5 °F). Therefore, the sea is cold for swimming.

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August, the coldest month of the year, is generally a very mild month. The average temperature is of 15.8 °C (60 °F), with a minimum of 12.7 °C (54.8 °F) and a maximum of 18.9 °C (66 °F).
On the coldest nights of the month, the temperature usually drops to around 11.5 °C (52.5 °F).
On the warmest days of the month, the temperature usually reaches around 20 °C (68.5 °F).
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 35 minutes.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is 26 kph (16 mph).
The average sea temperature is of 16 °C (60.5 °F). Therefore, the sea is cold for swimming.

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September is generally a very mild month. The average temperature is of 16.6 °C (62 °F), with a minimum of 13.4 °C (56.1 °F) and a maximum of 19.8 °C (67.6 °F).
On the coldest nights, the temperature usually drops to around 12 °C (53.5 °F).
On the warmest days, the temperature usually reaches around 21.5 °C (70.5 °F).
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 0 minutes.
The average humidity is 80%. Hence, the air is normally humid.
The average wind speed is 26 kph (16 mph).
The average sea temperature is of 16.5 °C (61.5 °F). Therefore, the sea is cold for swimming.

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October is generally a very mild month. The average temperature is of 17.6 °C (64 °F), with a minimum of 14.2 °C (57.6 °F) and a maximum of 21 °C (69.8 °F).
On the coldest nights, the temperature usually drops to around 13 °C (55 °F).
On the warmest days, the temperature usually reaches around 23 °C (73 °F).
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.
The average humidity is 78%. Hence, the air is normally humid.
The average wind speed is 27 kph (17 mph).
The average sea temperature is of 17 °C (63 °F). Therefore, the sea is cold for swimming.

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November is generally a warm month. The average temperature is of 18.9 °C (66 °F), with a minimum of 15.5 °C (59.9 °F) and a maximum of 22.3 °C (72.1 °F).
On the coldest nights, the temperature usually drops to around 13.5 °C (56.5 °F).
On the warmest days, the temperature usually reaches around 24.5 °C (76 °F).
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 50 minutes.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is 26 kph (16 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 20.5 °C (69 °F), with a minimum of 16.7 °C (62 °F) and a maximum of 24.4 °C (75.9 °F).
On the coldest nights of the month, the temperature usually drops to around 14.5 °C (58.5 °F).
On the warmest days of the month, the temperature usually reaches around 28 °C (82.5 °F).
Precipitation amounts to only 0 mm (0 in), so on average it never rains in the whole month.
The day lasts on average 13 hours and 0 minutes.
The average humidity is 76%. Hence, the air is normally humid.
The average wind speed is 25 kph (16 mph).
The average sea temperature is of 20 °C (68.5 °F). Therefore, the sea is very cool for swimming.