Today, 12 September, Saturday, in Florianópolis (Brazil): cloudy, light rain in places, moderately warm. During the day the air will warm up to +20°, at night around +16°. Wind up to 25 km/h. Brief rain is possible — an umbrella won't hurt. A T-shirt is comfortable during the day, but take a light sweater or windbreaker for the evening. Water temperature is +19° — you can swim. The sun will rise at 06:15 and set at 18:05 — daylight lasts 12 hours.
Hourly weather in Florianópolis
6%02
0%03
0%04
0%05
0%06
0%07
0%08
0%09
0%10
0%11
0%12
2%13
4%14
6%15
7%16
7%17
8%18
9%19
11%20
12%21
12%22
12%23
12%00
11%01
💧 The bars at the bottom show the hourly precipitation probability. Shaded areas of the chart are the dark hours (before sunrise 🌅 and after sunset 🌇).
Weather in Florianópolis for 14 days
Tap a day to expand it by time of day and open the full forecast. The bar shows the range from the night low (left) to the day high (right).
▶
Today 12.9
🌦️
💧 22%
+16°+20°
Morning
☁️
+18°
Day
🌦️
+20°
Evening
🌇
+17°
Night
🌙
+16°
Drizzle · precipitation 22% · wind up to 25 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Tomorrow 13.9
☁️
💧 25%
+15°+18°
Morning
☁️
+16°
Day
☁️
+18°
Evening
🌇
+16°
Night
🌙
+15°
Overcast · precipitation 25% · wind up to 21 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Mon 14.9
🌦️
💧 33%
+14°+18°
Morning
🌦️
+15°
Day
🌦️
+18°
Evening
🌇
+17°
Night
🌙
+14°
Drizzle · precipitation 33% · wind up to 14 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Tue 15.9
☁️
💧 12%
+11°+19°
Morning
☁️
+14°
Day
☁️
+19°
Evening
🌇
+17°
Night
🌙
+11°
Overcast · precipitation 12% · wind up to 21 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Wed 16.9
☁️
💧 6%
+13°+18°
Morning
☁️
+15°
Day
☁️
+18°
Evening
🌇
+17°
Night
🌙
+13°
Overcast · precipitation 6% · wind up to 22 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Thu 17.9
☁️
+11°+19°
Morning
☁️
+14°
Day
☁️
+19°
Evening
🌇
+17°
Night
🌙
+11°
Overcast · precipitation 0% · wind up to 12 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Fri 18.9
☁️
💧 11%
+12°+21°
Morning
☁️
+15°
Day
☁️
+21°
Evening
🌇
+19°
Night
🌙
+12°
Overcast · precipitation 11% · wind up to 20 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Sat 19.9
🌦️
💧 88%
+17°+21°
Morning
🌦️
+18°
Day
🌦️
+21°
Evening
🌇
+20°
Night
🌙
+17°
Drizzle · precipitation 88% · wind up to 14 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Sun 20.9
🌦️
💧 88%
+18°+22°
Morning
🌦️
+19°
Day
🌦️
+22°
Evening
🌇
+21°
Night
🌙
+18°
Drizzle · precipitation 88% · wind up to 7 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Mon 21.9
🌦️
💧 41%
+17°+24°
Morning
🌦️
+20°
Day
🌦️
+24°
Evening
🌇
+22°
Night
🌙
+17°
Drizzle · precipitation 41% · wind up to 16 km/h. 😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.
▶
Tue 22.9
🌦️
💧 40%
+15°+22°
Morning
🌦️
+18°
Day
🌦️
+22°
Evening
🌇
+20°
Night
🌙
+15°
Drizzle · precipitation 40% · wind up to 34 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Wed 23.9
🌤️
💧 18%
+12°+18°
Morning
🌤️
+14°
Day
🌤️
+18°
Evening
🌇
+17°
Night
🌙
+12°
Mostly clear · precipitation 18% · wind up to 13 km/h. 🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.
▶
Thu 24.9
☁️
💧 24%
+11°+26°
Morning
☁️
+17°
Day
☁️
+26°
Evening
🌇
+22°
Night
🌙
+11°
Overcast · precipitation 24% · wind up to 10 km/h. 😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.
▶
Fri 25.9
⛅
💧 20%
+14°+24°
Morning
⛅
+18°
Day
⛅
+24°
Evening
🌇
+22°
Night
🌙
+14°
Partly cloudy · precipitation 20% · wind up to 12 km/h. 😊 Warm and comfortable. Perfect for walks, the beach and sightseeing.
🗺️ Precipitation radar
Precipitation radar (RainViewer) over a clean base map — updates every 5–10 minutes. Colours show nearby precipitation; if there is none, the map is simply clear — that is normal. Zoom with + / −.
Rain intensity:lightmoderateheavy
🎯 What to do in this weather — indices of the day
Comfort score from 0 (bad) to 100 (excellent), calculated from the day's weather. For “rain” and “UV” a percentage/risk level is shown.
🏖️ Beach
0 / 100
for sea and sun · Bad
🏊 Swimming
36 / 100
water 19° · So-so
🏃 Running
63 / 100
comfort for running · Average
🧴 UV
0%
moderate · low
☂️ Rain
22%
possible · low
✨ Stars
73 / 100
evening visibility · Good
🧺 Laundry drying
10 / 100
will dry outside · Bad
🚗 Car wash
69 / 100
no rain expected · Good
🌫️ Air quality
23
Good air
European AQI
PM2.5: 6PM10: 6O₃: 37NO₂: 11
The air is clean — you can walk and exercise outside.
🌅 Sun, moon and sea
Sunrise
06:15
Sunset
18:05
Golden hour
17:34
Daylight
12 h (+2 min vs yesterday)
Sea temperature
+19°
🌊 calm, waves 0.5 m.
Florianópolis climate by month
Long-term averages. Hover over a bar for details. The forecast for a specific month is a combination of the climate normal and the model forecast for the coming weeks.
+27°
+22°
Jan
+27°
+22°
Feb
+27°
+22°
Mar
+25°
+20°
Apr
+22°
+17°
May
+20°
+15°
Jun
+20°
+14°
Jul
+20°
+14°
Aug
+21°
+16°
Sep
+23°
+18°
Oct
+24°
+19°
Nov
+26°
+21°
Dec
swipe sideways →
Bar color shows temperature:frostcoolcomfortablewarmhot— best months to visit
Month
Day
Night
Sea
Precipitation
What to pack and what makes the month notable (events, nuances)
January
+27°
+22°
+27°
221 mm
Gentle warmth — about +27° daytime, great walking weather. Frequent rain (221 mm over the month) — keep indoor backup plans. 😊 light summer clothing. Water at +27° — great for swimming. Statistically the wettest month of the year.
February
+27°
+22°
+28°
212 mm
A comfortable month: +27° by day without exhausting heat. One of the wettest months (212 mm): downpours can derail plans. 😊 light summer clothing. Water at +28° — great for swimming. This is the hottest month of the year in Florianópolis.
March
+27°
+22°
+27°
147 mm
Warm and comfortable: +27° by day, +22° at night. It's a rainy month (147 mm) — an umbrella is a must. 😊 light summer clothing. Water at +27° — great for swimming. Weather-wise, one of the three best months to visit.
April
+25°
+20°
+25°
94 mm
Ideal weather: +25° daytime — neither hot nor cold. Frequent rain (94 mm over the month) — keep indoor backup plans. 😊 light summer clothing. Water at +25° — great for swimming. Weather-wise, one of the three best months to visit.
May
+22°
+17°
+22°
112 mm
The most pleasant season: +22° by day, comfortable all day long. One of the wettest months (112 mm): downpours can derail plans. 🙂 a sweater for the evening. Water at +22° — great for swimming.
June
+20°
+15°
+20°
98 mm
One of the best times to visit: +20° by day, fresh nights. It's a rainy month (98 mm) — an umbrella is a must. 🙂 a sweater for the evening. Sea at +20° — swimmable, refreshing. The shortest daylight of the year — it gets dark early.
July
+20°
+14°
+17°
91 mm
Ideal weather: +20° daytime — neither hot nor cold. Frequent rain (91 mm over the month) — keep indoor backup plans. 🙂 a sweater for the evening. The water is cold (+17°) — swimming is for the brave. This is the coldest month of the year.
August
+20°
+14°
+18°
89 mm
The most pleasant season: +20° by day, comfortable all day long. One of the wettest months (89 mm): downpours can derail plans. 🙂 a sweater for the evening. Sea at +18° — swimmable, refreshing. Weather-wise, one of the three best months to visit.
September
+21°
+16°
+20°
149 mm
One of the best times to visit: +21° by day, fresh nights. It's a rainy month (149 mm) — an umbrella is a must. 🙂 a sweater for the evening. Sea at +20° — swimmable, refreshing.
October
+23°
+18°
+21°
142 mm
Ideal weather: +23° daytime — neither hot nor cold. Frequent rain (142 mm over the month) — keep indoor backup plans. 🙂 a sweater for the evening. Sea at +21° — swimmable, refreshing.
November
+24°
+19°
+24°
142 mm
The most pleasant season: +24° by day, comfortable all day long. One of the wettest months (142 mm): downpours can derail plans. 😊 light summer clothing. Water at +24° — great for swimming.
December
+26°
+21°
+25°
161 mm
Warm and comfortable: +26° by day, +21° at night. It's a rainy month (161 mm) — an umbrella is a must. 😊 light summer clothing. Water at +25° — great for swimming. The longest daylight hours of the year — more time for everything.
When to visit Florianópolis
✅ Recommended time to visit
🌟 Best time: March, April, August
Daytime air+20…+27°
Sea temperature+18…+27°
Precipitationoften
Why: comfortable +20…+27° by day, little rain.
⚠️ Doable, with caveats
🌤️ Shoulder season: May, June, July, October, November, December
Daytime air+20…+26°
Sea temperature+17…+25°
Precipitationoften
Why: noticeable rain risk (91–161 mm/month) — pack an umbrella and backup plans.
🔴 Not the best time
🌤️ Shoulder season: January, February, September
Daytime air+21…+27°
Sea temperature+20…+28°
Precipitationoften
Why: the rainy season (149–221 mm/month) — downpours almost daily.
Bottom line: the best time to visit Florianópolis is March, April, August, and the most comfortable months are March, April, August. The toughest months to visit are January, February, September: frequent rain.
🌡️ Today vs the climate normal
Today's high
+20°
Normal for September
+21°
Deviation
1° colder than normal
A year ago on this day
+20°
Record for this date
+31° (1943)
The normal, “a year ago” and the record come from the weather archive since 1940 (Open-Meteo / ERA5).
Weather archive for Florianópolis
📅 See what the weather was like on any day since 1940. For example: “what was the weather on March 2, 2021”.