worldweather7°Cexceptionally cool
usually 13°C–21°C
cooler than 99% of similar days
night: near normal
rain: more rain than usual
wind: stronger than usual
Weather in Bahía Blanca - 14-day forecast
Detailed weather forecast for Bahía Blanca, Argentina: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Bahía Blanca
today🌧️
7°💧 2.2 mm
Sun🌤️
7°💧 0.2 mm
Mon☀️
13°💧 0.7 mm
Tue☀️
17°💧 8.3 mm
Wed☀️
18°💧 0.3 mm
Thu🌧️
16°💧 3.6 mm
Fri🌧️
10°💧 0.1 mm
Sat🌧️
8°💧 0.7 mm
Forecast vs 1991-2020 climate normal
NASA POWERHow does the current forecast compare with normal?
We compare the coming days with weather usually observed at this time of year.
Sunday 6 Sept in Bahía Blanca, the forecast high is 7°C. Typical daytime temperatures at this time of year range from 13°C to 21°C, so it will be exceptionally cool. It is cooler than 100% of similar days.
7°Cexceptionally cool
usually 13°C–21°C
cooler than 100% of similar days
night: near normal
rain: more rain than usual
wind: exceptionally light
13°Ccooler than usual
usually 13°C–21°C
cooler than 80% of similar days
night: exceptionally warm
rain: more rain than usual
wind: typical
17°Cnear normal
usually 14°C–21°C
night: exceptionally warm
rain: exceptionally wet
wind: stronger than usual
18°Cnear normal
usually 14°C–21°C
night: exceptionally warm
rain: more rain than usual
wind: exceptionally light
16°Cnear normal
usually 14°C–22°C
night: exceptionally warm
rain: more rain than usual
wind: exceptionally light
10°Cexceptionally cool
usually 14°C–22°C
cooler than 96% of similar days
night: warmer than usual
rain: more rain than usual
wind: stronger than usual
How warm was this week in previous years?
Each bar shows the average daily high during the same 7-day period in each year.
cooler yearstypical rangewarmer years2026 forecastcurrent forecast
From 1981 to 2025, the 5-11 Sept period averaged 18°C by day. The coolest year was 1989 (13°C) and the warmest was 2007 (23°C). The current forecast averages 13°C - lower than in 98% of historical years.
Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.
14-day forecast - Bahía Blanca
Bahía Blanca 30 & 45-day weather - long-range outlook
Next 15 days · forecast
16°
around 11° at night · days with rain: 6
Weeks 3-4 · avg for September
18°
around 5° at night · rain chance 26%
Weeks 5-7 · avg for October
20°
around 8° at night · rain chance 35%
The 30 & 45-day outlook for Bahía Blanca: the next 15 days are a numerical forecast updated daily - on average 16° by day and 11° at night. Further out we rely on multi-year climate averages: around 18° in September, and about 20° in October. Forecasts beyond two weeks are indicative only.
Day-by-day forecast for Bahía Blanca
Saturday5 September 2026
🌧️7°light rain
Sunday6 September 2026
🌤️7°scattered clouds
Monday7 September 2026
☀️13°clear sky
Tuesday8 September 2026
☀️17°clear sky
Wednesday9 September 2026
☀️18°clear sky
Thursday10 September 2026
🌧️16°light rain
Friday11 September 2026
🌧️10°light rain
Saturday12 September 2026
🌧️8°light rain
Sunday13 September 2026
☁️10°overcast clouds
Monday14 September 2026
☀️16°clear sky
Tuesday15 September 2026
🌤️22°scattered clouds
Wednesday16 September 2026
☁️19°overcast clouds
Thursday17 September 2026
☁️24°broken clouds
Friday18 September 2026
☁️23°overcast clouds
Saturday19 September 2026
☀️26°clear sky
UV index in Bahía Blanca - is it safe to sunbathe?
Today the UV index in Bahía Blanca is 5 (moderate) - unprotected fair skin can burn in about 45 minutes. Seek shade around midday. SPF 30+, sunglasses and a hat for longer stays.
Sea temperature - Bahía Blanca
Water today
10°C
Week avg
10°C
Waves today
0.4 m
How's the water?
very cold
16-day sea temperature forecast:
Average sea temperature through the year:
Sea-surface temperature from marine models, updated daily. See also: where the sea is warmest right now.
Air quality and smog in Bahía Blanca
Air quality in Bahía Blanca is currently very good. Fine particulate PM2.5: 0.9 µg/m³, PM10: 1.2 µg/m³.
| City | PM2.5 (µg/m³) | PM10 (µg/m³) | Air quality |
|---|---|---|---|
| Bahía Blanca | 0.9 | 1.2 | very good |
Based on PM2.5 thresholds. Station readings, updated daily (last reading: 2026-09-04, 22:00).
Bahía Blanca weather through the year
Warmest, driest months on average: January, February, March, April.
Upcoming public holidays in Argentina: Day of Respect for Cultural Diversity — 12 October · National Sovereignty Day — 23 November · Immaculate Conception Day — 8 December.
Nearby and related places
FAQ - Bahía Blanca weather
What is the weather like in Bahía Blanca today?
Today it is about 7° during the day and 4° at night, light rain.
How far ahead can I check the forecast for Bahía Blanca?
This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.