Formosa weather by month & the best time to visit
Argentina · regional city · humid subtropical climate

The best time to visit Formosa is August — its sunniest month (Sunshine Score 87/100), with July and June close behind. Formosa averages about 2,538 hours of sunshine a year. Daytime highs around 25°C / 77°F and roughly 35 mm of rain in August.
When is the best time to visit Formosa?
For sunshine, the best time to visit Formosa is August, then July and June. The dullest month is January (55/100, 135 mm of rain). The full month-by-month picture is in the table below.
How sunny is Formosa?
Formosa gets a lot of sun: around 2,538 hours a year. August (87/100) is noticeably better than January (55). It ranks #34 of 41 destinations in Argentina for annual sunshine, below the national median of 2,741 hours. The year's 1,402 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV |
|---|---|---|---|---|---|
| January | 55 | 34° / 93°F | 23° / 73°F | 135 mm | 12 |
| February | 56 | 34° / 93°F | 22° / 72°F | 127 mm | 11 |
| March | 60 | 33° / 91°F | 20° / 68°F | 148 mm | 9 |
| April | 66 | 29° / 84°F | 17° / 63°F | 160 mm | 7 |
| May | 73 | 24° / 75°F | 13° / 55°F | 116 mm | 4 |
| June | 82 | 22° / 72°F | 11° / 52°F | 65 mm | 3 |
| July | 84 | 22° / 72°F | 10° / 50°F | 55 mm | 4 |
| August | 87 | 25° / 77°F | 11° / 52°F | 35 mm | 5 |
| September | 82 | 28° / 82°F | 14° / 57°F | 65 mm | 6 |
| October | 68 | 31° / 88°F | 18° / 64°F | 143 mm | 8 |
| November | 66 | 32° / 90°F | 19° / 66°F | 175 mm | 10 |
| December | 60 | 33° / 91°F | 21° / 70°F | 178 mm | 11 |
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Formosa: questions and answers
What kind of destination is Formosa?
Formosa is a regional city in Argentina with a humid subtropical climate.
How many hours of sunshine does Formosa get a year?
Formosa gets about 2,538 hours of sunshine a year, at its best around August.
When is the best time to visit Formosa?
The sunniest time to visit Formosa is August, when the Sunshine Score peaks at 87/100 (with July and June close behind). Expect daytime highs around 25°C / 77°F.
What is the least sunny month in Formosa?
January is the least sunny month in Formosa, scoring 55/100 with about 135 mm of rain.
How strong is the sun in Formosa?
The typical midday UV index in Formosa peaks around 12 (extreme) in January, easing to about 3 (moderate) in June. Month-by-month midday UV values are in the UV column of the table on this page.
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