Weather in Balneário Arroio do Silva

14-day forecast · updated today, Thursday, October 29, at 4:29 am (GMT-3)

Now · partly cloudy 63 °F

Feels like: 65 °F
Low / high: 63 / 70 °F
Rain: 81% · 0.14 in
Wind: 4 mph SSW

→ 30.03 inHg · steady UV 6 · high

Today in Balneário Arroio do Silva: drizzle, 63 °F to 70 °F, with a 81% chance of rain (0.14 in) and a light breeze from the south-southwest (4 mph). Tomorrow, light rain, 62 °F to 69 °F and a 95% chance of rain. The warmest day of the week is Monday 2, at 81 °F.

Temperatures for the next 14 days

70° 63°
Today
69° 62°
Fri 30
69° 62°
Sat 31
72° 61°
Sun 1
81° 64°
Mon 2
75° 65°
Tue 3
73° 65°
Wed 4
72° 65°
Thu 5
72° 68°
Fri 6
72° 65°
Sat 7
68° 59°
Sun 8
71° 56°
Mon 9
72° 53°
Tue 10
75° 58°
Wed 11

Day by day

Day	Sky	Low / high	Rain	Max wind	Max wave	Model
Today · 29	Drizzle	63 / 70 °F	81% · 0.14 in	10 mph SSW	3.5 ft	ECMWF
Fri 30	Light rain	62 / 69 °F	95% · 0.56 in	8 mph SSW	4.0 ft	ECMWF
Sat 31	Drizzle	62 / 69 °F	72% · 0.17 in	10 mph S	4.4 ft	ECMWF
Sun 1	Light drizzle	61 / 72 °F	31% · 0.02 in	9 mph ESE	4.0 ft	ECMWF
Mon 2	Heavy drizzle	64 / 81 °F	61% · 0.17 in	8 mph E	3.5 ft	ECMWF
Tue 3	Drizzle	65 / 75 °F	66% · 0.07 in	8 mph S	3.1 ft	ECMWF
Wed 4	Rain	65 / 73 °F	63% · 1.68 in	12 mph SW	5.5 ft	ECMWF
Thu 5	Light rain	65 / 72 °F	37% · 0.57 in	12 mph E	5.5 ft	ECMWF
Fri 6	Rain	68 / 72 °F	44% · 2.64 in	9 mph SSE	5.1 ft	ECMWF
Sat 7	Light drizzle	65 / 72 °F	33% · 0.08 in	12 mph SSW	5.8 ft	ECMWF
Sun 8	Drizzle	59 / 68 °F	25% · 0.32 in	15 mph SSW	7.5 ft	ECMWF
Mon 9	Mainly clear	56 / 71 °F	20%	9 mph SSW	6.7 ft	ECMWF
Tue 10	Partly cloudy	53 / 72 °F	22%	8 mph E	4.2 ft	ECMWF
Wed 11	Partly cloudy	58 / 75 °F	25%	14 mph ENE	5.7 ft	ECMWF

Each day comes from the best model covering this spot: regional ones first (HRRR and NBM in the U.S., AROME, ICON-EU), then ECMWF; day 16, NOAA GFS. Waves: Météo-France up to day 10, then ECMWF WAM, coarser and further offshore.

Today, every 3 hours

Time	12:00 am	3:00 am	6:00 am	9:00 am	12:00 pm	3:00 pm	6:00 pm	9:00 pm
Sky	Overcast	Overcast	Partly cloudy	Overcast	Overcast	Overcast	Drizzle	Light drizzle
Temperature	65°	63°	64°	70°	69°	68°	65°	64°
Chance of rain	59%	22%	6%	4%	10%	29%	75%	67%
Rain	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.03 in	0.01 in
Wind (mph)	3 SW	5 SSW	3 SSW	6 S	10 S	6 SSE	3 SSW	3 W
Humidity	90%	91%	91%	76%	78%	80%	96%	97%
UV	0	0	0	3	6	3	0	0
Model	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF

Do the models agree?

Low confidence

They don't agree on rain on Saturday 31: it may change, so check again closer to the day.

What 4 forecast models say for the next few days. The closer they are, the more reliable the forecast.

HighRainWind

Do the models agree? · High
High (°F)	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	70°	69°	69°	72°	81°	75°	73°
AIFS	66°	67°	67°	71°	74°	73°	71°
GFS	67°	67°	70°	71°	77°	78°	72°
ICON	69°	66°	69°	75°	84°	84°	78°
Confidence	high	high	high	high	medium	low	medium

Do the models agree? · Rain
Rain	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	0.14 in	0.56 in	0.17 in	0.02 in	0.17 in	0.07 in	1.68 in
AIFS	0.25 in	0.27 in	0.30 in	0.13 in	0.12 in	0.27 in	0.21 in
GFS	0.11 in	0.82 in	0	0	0.01 in	0.54 in	0.11 in
ICON	0	0.17 in	0.02 in	0	0.01 in	0	0.97 in
Confidence	medium	medium	low	medium	medium	medium	medium

Do the models agree? · Wind
Wind (mph)	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	1022	818	1023	932	820	821	1225
AIFS	8	6	9	10	10	6	9
GFS	716	915	910	1017	1522	918	916
ICON	918	714	815	1327	717	819	1224
Confidence	high	high	high	high	medium	high	high

Chance of rain from the ensemble models

Model	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF (51 scenarios)	81%	95%	72%	31%	61%	66%	63%
GFS (GEFS, 31 scenarios)	45%	98%	48%	35%	35%	77%	71%

Each model's day runs midnight to midnight local time; models that reach fewer days are left blank. Rain: daily total. Wind: the day's highest average wind and, in small type, the strongest gust. Highlighted: values that stand out from the rest. The chance of rain comes from many runs of the same model with slightly different starting data.

Outlook

How the coming weeks and months compare with what is normal for the time of year. It is a trend, not a day-by-day forecast.

Next few weeks, compared with normal: a bit cooler, a bit wetter and a cooler sea.

Next 6 weeks

When	TemperatureTemp.	Rain	Sea	Typical high / low
Nov 2 – Nov 8Nov 2–Nov 8	A bit below −1.6 °F	A bit above +48%	Below −2.3 °F	—
Nov 9 – Nov 15Nov 9–Nov 15	A bit below −0.9 °F	A bit below −25%	Below −2.2 °F	—
Nov 16 – Nov 22Nov 16–Nov 22	Normal −0.5 °F	Above +59%	A bit below −1.4 °F	71° / 68°
Nov 23 – Nov 29Nov 23–Nov 29	Normal −0.5 °F	A bit above +38%	A bit below −1.4 °F	72° / 69°
Nov 30 – Dec 6Nov 30–Dec 6	Normal −0.5 °F	A bit above +37%	A bit below −1.3 °F	73° / 69°

Coming months

When	TemperatureTemp.	Rain	Sea
November	Normal +0.2 °F	Above +55%	Normal −0.4 °F
December	A bit above +0.9 °F	A bit above +47%	Normal +0.4 °F
January	A bit above +1.1 °F	A bit above +21%	A bit above +0.5 °F
February	A bit above +1.3 °F	Normal	A bit above +0.5 °F
March	A bit above +1.1 °F	A bit above +30%	Normal +0.4 °F

Weeks: ECMWF 46-day (average of its scenarios), against the normal of the last 20 years for those dates. Months: ECMWF SEAS5. Rain: total against normal. The further ahead, the closer it gets to normal and the less detail it can give.

Balneário Arroio do Silva climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit Balneário Arroio do Silva is from October to December and from April to June: highs of 70 °F to 82 °F, about 11 rainy days a month and 5 hours of sunshine a day.

Tropical cyclones rarely pass near Balneário Arroio do Silva: one within 93 mi in the last 30 years (1996–2025), in March 2004.

84° 67°

JanJ
83° 67°

FebF
82° 65°

MarM
78° 60°

AprA
73° 55°

MayM
70° 52°

JunJ
68° 49°

JulJ
69° 51°

AugA
71° 55°

SepS
74° 59°

OctO
78° 61°

NovN
82° 64°

DecD

Highs and lows
Monthly rainfall
Best time

Month	High	Low	Rain	Rainy daysDays	Sun (h/day)	Water	Waves
JanuaryJan	84°	67°	6.94 in	16	6.2	76°	4.4 ft
FebruaryFeb	83°	67°	5.30 in	16	5.2	76°	4.3 ft
MarchMar	82°	65°	4.49 in	14	5.0	76°	4.9 ft
AprilApr	78°	60°	4.19 in	10	4.5	74°	4.8 ft
MayMay	73°	55°	4.08 in	9	4.2	70°	5.3 ft
JuneJun	70°	52°	4.06 in	9	3.2	65°	4.7 ft
JulyJul	68°	49°	3.10 in	9	4.0	62°	5.1 ft
AugustAug	69°	51°	3.30 in	9	4.7	62°	5.5 ft
SeptemberSep	71°	55°	4.98 in	11	3.8	64°	5.6 ft
OctoberOct	74°	59°	4.78 in	12	3.7	67°	5.5 ft
NovemberNov	78°	61°	3.59 in	11	5.8	69°	5.1 ft
DecemberDec	82°	64°	3.50 in	13	6.1	73°	4.5 ft

Month	Water	Waves
Jan	76°	4.4 ft
Feb	76°	4.3 ft
Mar	76°	4.9 ft
Apr	74°	4.8 ft
May	70°	5.3 ft
Jun	65°	4.7 ft
Jul	62°	5.1 ft
Aug	62°	5.5 ft
Sep	64°	5.6 ft
Oct	67°	5.5 ft
Nov	69°	5.1 ft
Dec	73°	4.5 ft

Days: rainy days in the month. Sun: hours a day.

A normal year brings 52.31 in of rain on about 138 days and about 1,700 hours of sunshine.

1991–2020 averages. Highs, lows and rainfall: TerraClimate; rainy days (0.04 in or more): NASA POWER (MERRA-2); sunshine hours: estimated from solar radiation; water: NOAA OISST; waves (average height): ERA5, 2011–2020. Normals are not a forecast: any given year can turn out very different. Sources and licenses

Temperature

Now63 °Ffeels like 65 °F

Tomorrow62 / 69 °F

It's 63 °F now (feels like 65 °F). Today, 63 °F to 70 °F; tomorrow, 62 °F to 69 °F.

Chance of rain

Today 81% 0.14 in
Fri 30 95% 0.56 in
Sat 31 72% 0.17 in
Sun 1 31% 0.02 in
Mon 2 61% 0.17 in
Tue 3 66% 0.07 in
Wed 4 63% 1.68 in

Today the chance of rain reaches 81%, with 0.14 in in total. The next day with likely rain is Friday 30: 95% and 0.56 in.

Recent rain: last 24 hours, 0.02 in; last 3 days, 0.04 in; last 7 days, 0.46 in.

Humidity and dew point

Humidity92%

Dew point61 °F

Humidity is 92% now and the dew point is 61 °F. The temperature is very close to the dew point: fog may form.

The dew point is the temperature at which the air becomes saturated: the higher it is, the heavier the air feels.

Visibility and fog

Now15 migood

Clouds76%

Visibility is good now (15 mi). No fog expected today.

The model gives visibility up to about 15 mi: beyond that, the horizon is clear.

UV index

Now0

Today's peak6high

Fri 30: 7 · Sat 31: 8 · Sun 1: 10

Index	Level	What to do
0–2	low	No special protection needed.
3–5	moderate	Hat, sunglasses and sunscreen around midday.
6–7	high	Sunscreen, hat and shade between 12 and 4 pm.
8–10	very high	Avoid the midday sun; reflection off the water adds to it.
11+	extreme	Avoid the sun between 11 am and 5 pm; protect yourself even if it is cloudy.

Reflection off water and sand adds radiation: protect yourself more on a boat or at the beach.

Barometric pressure

↗ Rising Anglers say fish bite less for a while
→ Steady · now Anglers expect normal activity
↘ Falling Anglers say fish feed more before the change

29.9030.0030.1030.20 29.93

Steady now (−0.01 inHg in 3 hours). Over the next 48 hours: −0.10 inHg. Steady pressure: anglers expect normal activity. Fast changes, either way, tend to affect fishing.

Air and pollen

Air qualityFair · 30

Saharan dustNo

Previous days

The weather over the last 30 days, as the models analyzed it. Tap a day to see it hour by hour.

Day	Sky	Low / high	Rain	Max wind
Wed 28	Light drizzle	57 / 76 °F	0.02 in	7 mph E
Tue 27	Overcast	54 / 68 °F	0	11 mph ENE
Mon 26	Light drizzle	56 / 66 °F	0.03 in	13 mph SSW
Sun 25	Drizzle	58 / 70 °F	0.15 in	18 mph SSW
Sat 24	Light drizzle	62 / 76 °F	0.16 in	16 mph SSW
Fri 23	Light drizzle	65 / 79 °F	0.07 in	12 mph NE
Thu 22	Light drizzle	63 / 71 °F	0.04 in	14 mph NE

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Wed 21	Overcast	58 / 70 °F	0	13 mph ENE
Tue 20	Overcast	54 / 66 °F	0	11 mph SSE
Mon 19	Partly cloudy	50 / 67 °F	0	12 mph SSW
Sun 18	Partly cloudy	55 / 67 °F	0	15 mph SSW
Sat 17	Light drizzle	57 / 72 °F	0.03 in	14 mph SSW
Fri 16	Light drizzle	62 / 73 °F	0.07 in	16 mph S
Thu 15	Drizzle	65 / 74 °F	0.20 in	9 mph SSW
Wed 14	Heavy drizzle	62 / 74 °F	0.24 in	8 mph SSW
Tue 13	Light drizzle	58 / 67 °F	0.04 in	7 mph SSW
Mon 12	Light rain	58 / 62 °F	0.30 in	6 mph SSE
Sun 11	Light rain	59 / 64 °F	0.35 in	9 mph S
Sat 10	Light drizzle	63 / 68 °F	0.08 in	7 mph SSE
Fri 9	Light rain	64 / 73 °F	0.54 in	8 mph ESE
Thu 8	Light rain	63 / 75 °F	0.30 in	12 mph ENE
Wed 7	Light drizzle	60 / 72 °F	0.01 in	14 mph ENE
Tue 6	Overcast	57 / 66 °F	0	9 mph ENE
Mon 5	Overcast	58 / 67 °F	0	9 mph SSE
Sun 4	Light rain	61 / 72 °F	0.21 in	17 mph SSE
Sat 3	Overcast	52 / 75 °F	0	17 mph NE
Fri 2	Light drizzle	55 / 63 °F	0.00 in	11 mph S
Thu 1	Light drizzle	56 / 60 °F	0.01 in	11 mph SSW
Wed 30	Light rain	58 / 67 °F	0.37 in	11 mph S
Tue 29	Rain	63 / 73 °F	1.57 in	9 mph NE

These are the models at the start of each day (ECMWF and GFS; waves from Météo-France), not readings from a weather station: there can be differences at specific spots.

Questions about the weather in Balneário Arroio do SilvaQuestions

What's the weather like today in Balneário Arroio do Silva?

Drizzle, from 63 °F to 70 °F, with a light breeze from the south-southwest (4 mph) and a 81% chance of rain.

Will it rain tomorrow in Balneário Arroio do Silva?

On Friday 30 the chance of rain is 95% (0.56 in): light rain.

How warm will it be this week?

Between a low of 61 °F and a high of 81 °F; the warmest day, Monday 2.

What's the UV index today?

It reaches 6 (high). Sunscreen, hat and shade between 12 and 4 pm.

Is the pressure rising or falling?

It's 30.03 inHg and steady: −0.09 inHg over the last 24 hours.

When is the best time to visit Balneário Arroio do Silva?

The best time to visit Balneário Arroio do Silva is from October to December and from April to June: highs of 70 °F to 82 °F, about 11 rainy days a month and 5 hours of sunshine a day.

What is the weather like in Balneário Arroio do Silva in October?

In October, Balneário Arroio do Silva normally sees highs of 74 °F and lows of 59 °F, with about 12 rainy days (4.78 in for the month) and 4 hours of sunshine a day. The sea is around 67 °F. These are 1991–2020 averages.

What are the warmest and wettest months in Balneário Arroio do Silva?

The warmest is January, with average highs of 84 °F, and the coldest July, with lows of 49 °F. The wettest is January (6.94 in) and the driest, July.

More about Balneário Arroio do Silva today

Weather near Balneário Arroio do Silva

Only places with a different forecast: spots a few miles apart share the same model cell and wouldn't add anything.

Learn more

Weather: Open-Meteo, CC BY 4.0, with the best model for each spot and lead time (NOAA HRRR and NBM in the U.S., Météo-France AROME, DWD ICON-EU, ECMWF IFS and NOAA GFS); ECMWF grid point 5.1 mi away. The comparison also uses ICON (DWD), AIFS (ECMWF) and ARPEGE (Météo-France). Outlook: ECMWF 46-day and SEAS5. Chance of rain from ensemble models (ECMWF, GEFS and NBM). UV, air quality and pollen: CAMS (Copernicus).

Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 4:29 am (local time).

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