Iceland
Vík in September: weather, sea & travel advice
This month's data profile
Rain shapes the decision
Vík in September is climatically mixed. The average daily high is around 9 °C, and the sea is about 10 °C. With about 22 rainy days it is very wet.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
16/100 · #5
Warmth
#4
Dryness
#8
Sun
#6
Sea warmth
#3
Published best categories: none
Vík · SeptemberPhoto: Alexey Komarov · CC BY-SA 4.0Climate facts
- Average high
- 9 °C
- Average low
- 6 °C
- Sea
- 10 °C
- Rainy days (est.)
- 22 rainy days (est.)
- Sun (est.)
- 3 h/day
- Humidity
- 88 %
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 | 11 | 8 | 20 | 167 | 4.5 | 88 | 4.0 | 12 | 22 |
| September (selected) | 9 | 6 | 22 | 220 | 2.7 | 88 | 4.9 | 10 | 16 |
| October | 6 | 3 | 21 | 220 | 1.3 | 88 | 5.3 | 9 | 11 |
How do the previous and next months compare?
Baseline: September (16/100)
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 | +6 | +2.3 °C | +2.1 °C | -1.5 | -52.6 mm | +1.8 h | -0.1 % | -0.9 m/s | +1.1 °C |
| October | -5 | -3.3 °C | -3.1 °C | -0.4 | -0.1 mm | -1.4 h | -0.3 % | +0.4 m/s | -1.5 °C |
All twelve months in context
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Where to stay in Vík
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Useful next decisions
Frequently asked questions
How warm is Vík in September?
The average daily high is around 9 °C, with an average daily low of about 6 °C.
Can you swim in Vík in September?
The sea is about 10 °C (cold).
Does it rain a lot in Vík in September?
The curated estimate is about 22 rainy days per month, not a directly measured long-term average. Total precipitation averages around 220 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Vík?
No month in Vík reaches the threshold for a clear recommendation in the climate score; the month comparison above shows the differences.