Chile
Punta Arenas in September: weather, sea & travel advice
This month's data profile
Balanced monthly profile
Punta Arenas in September is climatically mixed. The average daily high is around 7 °C, and the sea is about 6 °C. With about 11 rainy days it is wet.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
30/100 · #6
Warmth
#8
Dryness
#2
Sun
#7
Sea warmth
#11
Published best categories: none
Punta Arenas · SeptemberPhoto: W. Bulach · CC BY-SA 4.0Climate facts
- Average high
- 7 °C
- Average low
- 2 °C
- Sea
- 6 °C
- Rainy days (est.)
- 11 rainy days (est.)
- Sun (est.)
- 4 h/day
- Humidity
- 82 %
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|---|
| August | 5 | 1 | 12 | 44 | 2.0 | 86 | 5.7 | 6 | 25 |
| September (selected) | 7 | 2 | 11 | 36 | 3.5 | 82 | 5.7 | 6 | 30 |
| October | 9 | 4 | 11 | 37 | 5.6 | 78 | 6.1 | 6 | 34 |
How do the previous and next months compare?
Baseline: September (30/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | Sea Δ | |
|---|---|---|---|---|---|---|---|---|---|
| August | -5 | -1.9 °C | -0.9 °C | +0.8 | +7.9 mm | -1.5 h | +4.1 % | +0.1 m/s | -0.1 °C |
| October | +4 | +2 °C | +1.3 °C | -0.1 | +1 mm | +2.1 h | -3.8 % | +0.4 m/s | +0.5 °C |
All twelve months in context

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Useful next decisions
Frequently asked questions
How warm is Punta Arenas in September?
The average daily high is around 7 °C, with an average daily low of about 2 °C.
Can you swim in Punta Arenas in September?
The sea is about 6 °C (cold).
Does it rain a lot in Punta Arenas in September?
The curated estimate is about 11 rainy days per month, not a directly measured long-term average. Total precipitation averages around 36 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Punta Arenas?
No month in Punta Arenas reaches the threshold for a clear recommendation in the climate score; the month comparison above shows the differences.