Bahía Blanca Weather in September

With daytime temperatures of 18°C (64°F) and nighttime lows of 8°C (46°F), September in Bahía Blanca brings moderate temperatures during the day. Some rainfall is to be expected during the month.

Rainfall in Bahía Blanca in September

Historically, the month has about 6 days of rain, averaging 49 mm (1.9 in) in total. The rain this month typically falls in concentrated bursts rather than all-day showers. Expect a few heavier spells rather than constant grey skies.

Temperature in Bahía Blanca in September

September in Bahía Blanca brings moderate temperatures, with highs of 18°C (64°F) and nights around 8°C (46°F). A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights drop to 8°C (46°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

Sunshine in Bahía Blanca in September

The area enjoys a moderate level of sunlight, with around 159 hours. It's a good balance between sunny and cloudy days.

Average water temperature in September

At 12°C (54°F), the water is too cold for most people to swim comfortably. A wetsuit is pretty much essential if you plan to go in.

If you prefer enjoying temperate temperatures and rain-free days, February, March, April, October, November and December typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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For a detailed overview over the year and the best time to visit Argentina, check out our Bahía Blanca's climate page.

Bahía Blanca Temperature in September

Min Temperature 8°C (46°F)  

Max Temperature 18°C (64°F)  

Water Temperature 12°C (54°F)  

Chance of Rain 20%  

Precipitation 49 mm (1.9 in)  

Rainy days 6 days  

Humidity 64%  

Sunshine 159 hours  

Percentage Sunshine 44%  

What to Wear in Bahía Blanca in September

Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Rain gear is recommended, you can expect wet weather on multiple days. Expect water temperatures of around 12°C (54°F), which is definitely too cold for comfortable swimming. Your luggage space is better used for other items. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Bahía Blanca in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

6/10

Cycling

6/10

Walking

6/10

Barbeque

6/10

Camping

5/10

Outdoor sports

10/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Argentina, check out our Bahía Blanca's climate page.

More climate data for Bahía Blanca

Temperature Rainfall Sunshine Humidity Water Temp

See the full Bahía Blanca climate overview or explore weather in Argentina.