Climate and monthly weather forecast
Tacna, AZ

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Weather in January

January, the same as December, is another enjoyable winter month in Tacna, Arizona, with an average temperature fluctuating between 66.7°F (19.3°C) and 49.8°F (9.9°C). Tacna observes an average high-temperature of a still refreshing 66.7°F (19.3°C) in January, barely different from 64.9°F (18.3°C) in December. Weather in January »

Weather in February

The last month of the winter, February, is a pleasant month in Tacna, Arizona, with temperature in the range of an average high of 70°F (21.1°C) and an average low of 52.3°F (11.3°C). Tacna measures an average high-temperature of an agreeable 70°F (21.1°C) in February, nearly consistent with the preceding month. Weather in February »

Weather in March

The first month of the spring, March, is a moderately hot month in Tacna, Arizona, with an average temperature varying between 77.5°F (25.3°C) and 58.3°F (14.6°C). As Tacna transitions into March, a marginal rise in the average high-temperature is observed, moving from a pleasant 70°F (21.1°C) in February to a moderately hot 77.5°F (25.3°C). Weather in March »

Weather in April

April, the same as March, is another warm spring month in Tacna, Arizona, with an average temperature varying between 62.2°F (16.8°C) and 84°F (28.9°C). The arrival of April introduces a minor uplift in high-temperatures, adjusting from 77.5°F (25.3°C) in March to a still warm 84°F (28.9°C). Weather in April »

Weather in May

May, the last month of the spring in Tacna, is a hot month, with an average temperature varying between 67.8°F (19.9°C) and 91°F (32.8°C). The shift into May is marked by a modest rise in the average high-temperature, moving from April's moderately hot 84°F (28.9°C) to a hot 91°F (32.8°C). Weather in May »

Weather in June

June, the first month of the summer in Tacna, is a very hot month, with an average temperature varying between 76.3°F (24.6°C) and 101.3°F (38.5°C). The start of June brings a rise in the average high-temperature, moving from a hot 91°F (32.8°C) in May to a torrid 101.3°F (38.5°C). Weather in June »

Weather in July

July, the same as June, is another sweltering summer month in Tacna, Arizona, with temperature in the range of an average high of 103.8°F (39.9°C) and an average low of 83.8°F (28.8°C). July, on average, is the warmest month, registering a high temperature of 103.8°F (39.9°C) and a low of 83.8°F (28.8°C). Weather in July »

Weather in August

The last month of the summer, August, is also a fiery hot month in Tacna, Arizona, with an average temperature varying between 85.6°F (29.8°C) and 103.6°F (39.8°C). As Tacna transitions into August, the average high-temperature stands at a still fiery hot 103.6°F (39.8°C), offering little variation from the preceding month. Weather in August »

Weather in September

September, the first month of the autumn in Tacna, is also a sweltering month, with temperature in the range of an average low of 80.4°F (26.9°C) and an average high of 97.9°F (36.6°C). During the shift to September, Tacna records a mild decrease in average high-temperature, moving from a torrid 103.6°F (39.8°C) in August to a still sweltering 97.9°F (36.6°C). Weather in September »

Weather in October

October, like September, is another hot autumn month in Tacna, Arizona, with temperature in the range of an average low of 69.1°F (20.6°C) and an average high of 86.9°F (30.5°C). A decrease in the average high-temperature is observed during October, shifting from a fiery hot 97.9°F (36.6°C) in September to a hot 86.9°F (30.5°C). Weather in October »

Weather in November

The last month of the autumn, November, is another warm month in Tacna, Arizona, with an average temperature fluctuating between 75.4°F (24.1°C) and 57.6°F (14.2°C). November's onset brings a slight change in high-temperatures, falling from a hot 86.9°F (30.5°C) in October to a moderately hot 75.4°F (24.1°C). Weather in November »

Weather in December

December, the first month of the winter in Tacna, is still a refreshing month, with an average temperature ranging between min 49.8°F (9.9°C) and max 64.9°F (18.3°C). The coldest temperatures occur during December, when averages reach a peak of 64.9°F (18.3°C) and a low of 49.8°F (9.9°C). Weather in December »

Frequently asked questions

How much does it rain in Tacna?

In Tacna, during the entire year, the rain falls for 38.1 days and collects up to 3.9" (99mm) of precipitation.

What is the driest month in Tacna?

May is the month with the least rainfall in Tacna, Arizona. Rain falls for 0.9 days and accumulates 0.04" (1mm) of precipitation.

What is the least humid month in Tacna?

June is the least humid month in Tacna, Arizona, with an average relative humidity of 21%.

When are the longest days in Tacna?

The month with the longest days in Tacna is June, with an average of 14h and 18min of daylight.

What month has the most sunshine in Tacna?

June has the most sunshine of the year in Tacna, with an average of 12.2h of sunshine.

What are the months with the highest UV index in Tacna?

The months with the highest UV index are June through August, with an average maximum UV index of 8.

What is the warmest month in Tacna?

July stands out as Tacna's warmest month, with an average high-temperature of 103.8°F (39.9°C) and a low-temperature of 83.8°F (28.8°C).

What is the rainiest month in Tacna?

The month with the most rainfall is July, when the rain falls for 7.6 days and typically aggregates up to 0.71" (18mm) of precipitation.

What is the month with the lowest UV index in Tacna?

The months with the lowest UV index are November and December, with an average maximum UV index of 4.

What is the coldest month in Tacna?

December is the month when Tacna experiences its coldest temperatures, averaging a high of 64.9°F (18.3°C) and a low of 49.8°F (9.9°C).

What is the most humid month in Tacna?

The most humid month in Tacna, Arizona, is December, with an average relative humidity of 39%.

What is the month with the shortest days in Tacna?

With an average of 10h and 0min of daylight, December has the shortest days of the year in Tacna.

Is there Daylight Saving Time (DST) in Tacna?

Tacna does not utilize Daylight Saving Time (DST). MST timezone is used over the entire year.

What is the month with the least sunshine in Tacna?

December has the least sunshine of the year in Tacna, with an average of 7.1h of sunshine.

Average temperature
Tacna, AZ

Average temperature - Tacna, AZ

The warmest month (with the highest average high temperature) is July (103.8°F).
The month with the lowest average high temperature is December (64.9°F).

The month with the highest average low temperature is August (85.6°F).
The coldest months (with the lowest average low temperature) are January and December (49.8°F).

Average pressure
Tacna, AZ

Average pressure - Tacna, AZ

The month with the highest atmospheric pressure is January (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.73"Hg).

Average wind speed
Tacna, AZ

Average wind speed - Tacna, AZ

The windiest month (with the highest average wind speed) is July (8.4mph).
The calmest months (with the lowest average wind speed) are November and December (6mph).

Average rainfall
Tacna, AZ

Average rainfall - Tacna, AZ

The wettest month (with the highest rainfall) is July (0.71").
The driest month (with the least rainfall) is May (0.04").

Average rainfall days
Tacna, AZ

Average rainfall days - Tacna, AZ

The month with the highest number of rainy days is July (7.6 days).
The month with the least rainy days is May (0.9 days).

Average daylight / Average sunshine
Tacna, AZ

Average daylight / Average sunshine - Tacna, AZ

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 6min).

Average sunshine days
Tacna, AZ

Average sunshine days - Tacna, AZ

The month with the most sunshine days is May (29.7 days).
The month with the least sunshine days is July (19.8 days).

Average UV index
Tacna, AZ

Average UV index - Tacna, AZ

The months with the highest UV index are June, July and August (UV index 8).
The months with the lowest UV index are November and December (UV index 4).

Average visibility
Tacna, AZ

Average visibility - Tacna, AZ

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Tacna, Arizona, USA

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