Tacna is comfortable to be outside in almost any month: it rates Good or better for all year of the year. For walking, go from mid April to December. It is rarely warm enough for sunbathing.
When to go five ratings · thirty-six ten-day sections · click a cell to read it
Tacna never quite rates Good for sun. It comes closest in early March, at 51, mostly because it is too cool. The weakest stretch is from May to November, when it drops to 0, mostly because it is too cool. The clearest skies come in March, when the sky is typically 35% covered at midday (mostly clear).
For being outside, Tacna rates Good or better all year. It is at its best in late April, at 76.
The walking season here runs from mid April to December. It peaks in mid October, at 84. The weakest stretch is from February to mid March, when it drops to 29, mostly because it is too warm.
The year, measured
The average temperature in Tacna over the whole year is 17°C. February is the hottest month, with highs of about 25°C; August is the coldest, with lows of about 12°C. The rainy (wet) season in Tacna runs from December to February, peaking in December with a 28% chance of rain on a given day. The dry season is March to November; April is the driest month, at 3%. Winds in Tacna are highest in August, averaging 3.6 m/s (13 km/h), and lightest in May, at 3.1 m/s (11 km/h). The prevailing wind is from the SW. The clearest skies in Tacna come in March, when the sky is typically 51% covered; July is the cloudiest month, at 81%.
Month by month Tacna climate by month: average temperatures year round · click a month to read it
| Month | High | Low | Feels like | Chance of rain | Cloud | Wind | Being outside | Sun | Walking |
|---|---|---|---|---|---|---|---|---|---|
| January | 24°C | 18°C | 21°C | 17% | 65% | 3.3 m/s | 69 | 34 | 42 |
| February | 25°C | 19°C | 22°C | 19% | 59% | 3.3 m/s | 61 | 48 | 31 |
| March | 24°C | 18°C | 21°C | 14% | 51% | 3.4 m/s | 67 | 44 | 34 |
| April | 22°C | 16°C | 19°C | 3% | 53% | 3.3 m/s | 75 | 16 | 58 |
| May | 20°C | 15°C | 17°C | 5% | 71% | 3.1 m/s | 75 | 3 | 76 |
| June | 18°C | 13°C | 15°C | 4% | 79% | 3.2 m/s | 68 | 1 | 79 |
| July | 17°C | 12°C | 14°C | 14% | 81% | 3.4 m/s | 57 | 0 | 80 |
| August | 17°C | 12°C | 13°C | 10% | 80% | 3.6 m/s | 56 | 0 | 77 |
| September | 18°C | 12°C | 14°C | 10% | 79% | 3.3 m/s | 61 | 0 | 81 |
| October | 20°C | 14°C | 16°C | 9% | 75% | 3.2 m/s | 70 | 1 | 81 |
| November | 21°C | 15°C | 18°C | 10% | 69% | 3.4 m/s | 74 | 3 | 73 |
| December | 23°C | 16°C | 19°C | 28% | 63% | 3.3 m/s | 75 | 13 | 61 |
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Tacna weather by season
Year round, Tacna has days of about 17°C at their warmest in July, its coolest month, and 25°C in February, its warmest; the coolest hours of the day run from 12°C to 19°C through the year, and the average temperature over the year is 17°C around the clock. Rain is most likely around December and least likely around April. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Tacna weather in winterJune to August
Winter in Tacna has typical daily highs of about 17°C and lows of about 12°C, with a 9% chance of rain on a given day.
Tacna weather in springSeptember to November
Spring in Tacna has typical daily highs of about 20°C and lows of about 14°C, with a 9% chance of rain on a given day.
Tacna weather in summerDecember to February
Summer in Tacna has typical daily highs of about 24°C and lows of about 18°C, with a 21% chance of rain on a given day.
Tacna weather in autumnMarch to May
Autumn in Tacna has typical daily highs of about 22°C and lows of about 16°C, with a 8% chance of rain on a given day.
When is the rainy season in Tacna?
The rainy (wet) season in Tacna runs from December to February, peaking in December with a 28% chance of rain on a given day. The dry season is March to November; April is the driest month, at 3%.
What time of year is Tacna windiest?
Winds in Tacna are highest in August, averaging 3.6 m/s (13 km/h), and lightest in May, at 3.1 m/s (11 km/h). The prevailing wind is from the SW.
What is the average temperature in Tacna year round?
The average temperature in Tacna over the whole year is 17°C. February is the hottest month, with highs of about 25°C; August is the coldest, with lows of about 12°C.
Where to go instead in early March, the weakest time here for walking
How this is worked out
Every figure is a decade of weather-station observations blended into one typical year, in ten-day sections. The ratings, the chart and the feels-like column are read at midday local solar time. Being outside is the Easy outdoors rating, Sun is Sunbathing and Walking is Active outdoors, each out of 100: Good from 55, Ideal from 80. They describe what a time of year is usually like here, not a forecast. The dotted links open the map at that time of year; set its time of day to midday to see these numbers.