May · Iceland
Best time to visit Gullfoss in May Weather, crowds & prices
Weather in Gullfoss in May
Average temperature 2°C, 168 mm of rain, about 17 days with 6+ hours of sunshine and 91% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
May score
5.1/10
Ranked #4 of 12 months
- Avg temp
- 2°C
- Rainfall
- 168 mm
- Humidity
- 91%
- Days with 6h+ sun
- 17
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
May in Gullfoss scores 5.1/10 for nature and wildlife travel - an above-average month (#4 of 12). Expect around 2°C, 168 mm of rain, and roughly 17 days with 6+ hours of sunshine this month.
Gullfoss tumbles in two wide tiers into a canyon on the Hvítá river, part of Iceland's Golden Circle route.
May in Gullfoss — workable with trade-offs
At 2°C (35°F) this is proper winter weather in May: layer up and split the day between outdoor highlights and indoor stops.
168 mm of rain signals a properly wet month, with only about 17 days with 6+ hours of sunshine to count on — build indoor options into the schedule.
That is 5.1/10 on the same scale — 4th of 12 months, versus 6.6/10 for the best month here.
Pack insulated layers, a windproof shell, gloves and boots with grip, a proper rain shell rather than an umbrella, footwear you can get muddy.
Expect mid-season pricing, and crowds are moderate.
If your dates are flexible, July is materially better in Gullfoss — 1.5 points higher on the same scale.
Frequently asked
- What is the weather like in Gullfoss in May?
- In May, Gullfoss averages 2°C, 168 mm of rain, and about 17 days with 6+ hours of sunshine. Its climate-comfort score is 5.1/10.
- Is May a good time to visit Gullfoss?
- May earns a 5.1/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Gullfoss in May?
- Expect about 168 mm of rain in May. Average humidity is 91% and there are about 17 days with 6+ hours of sunshine.
Curated in Gullfoss
Tickets & experiences
Things to do in Gullfoss
Gullfoss, Iceland. Live activities and tours from GetYourGuide, matched to this destination.