September · Iceland
Best time to visit Reynisfjara in September Weather, crowds & prices
Weather in Reynisfjara in September
Average temperature 8°C, 185 mm of rain, about 0 days with 6+ hours of sunshine and 87% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
0.9/10
Ranked #6 of 12 months
- Avg temp
- 8°C
- Rainfall
- 185 mm
- Humidity
- 87%
- Days with 6h+ sun
- 0
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
September in Reynisfjara scores 0.9/10 for beach and coastal travel - an above-average month (#6 of 12). Expect around 8°C, 185 mm of rain, and roughly 0 days with 6+ hours of sunshine this month.
Reynisfjara is Iceland’s famous black-sand beach-sneaker waves, basalt columns, and Reynisdrangar sea stacks. Best window: the short high-summer window when daylight peaks.
September in Reynisfjara: expect compromises
September averages 8°C (46°F) — jacket weather. Comfortable for walking and museums, too cool for anything water-based.
At 185 mm this is a genuinely wet month: almost no days with 6+ hours of sunshine in total, and outdoor plans need an indoor fallback.
It scores 0.9/10 here, 6th of 12 months, against 4.2/10 in the destination's best month.
Pack a mid-weight jacket, long sleeves and shoes you can walk 15 km in, a proper rain shell rather than an umbrella.
Figure on low-season pricing, with crowds are light for this destination. That combination — decent conditions at the lowest rates of the year — is the best value window on this page.
Flexible dates? June scores 3.3 points higher here — enough to change the trip.
Frequently asked
- What is the weather like in Reynisfjara in September?
- In September, Reynisfjara averages 8°C, 185 mm of rain, and about 0 days with 6+ hours of sunshine. Its climate-comfort score is 0.9/10.
- Is September a good time to visit Reynisfjara?
- September earns a 0.9/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Reynisfjara in September?
- Expect about 185 mm of rain in September. Average humidity is 87% and there are about 0 days with 6+ hours of sunshine.
Curated in Reynisfjara
Tickets & experiences
Things to do in Reynisfjara
Reynisfjara, Iceland. Live activities and tours from GetYourGuide, matched to this destination.