Avg High
Reykjavik in July
Avg Low
Rain
Daylight
20h
What to expect
In Reykjavik, July sits in mid-summer, with a clear seasonal rhythm running through the month. Most days sit on the cooler side, and relatively steady temperatures through the day. Comfort is usually predictable, so a standard day plan works well. You get long daylight windows for full-day exploring.
July in context
How it compares to the rest of the year in Reykjavik.
Hottest (avg)
#1 / 12
Wettest (avg)
#11 / 12
Daylight Hours
#2 / 12
Windiest (avg)
#12 / 12
Highest UV
#2 / 12
Most Humid
#8 / 12
Monthly climate breakdown
Temperature
- Daytime high
-
- Nighttime low
-
- Feels like (avg)
-
Sunshine
- Daylight hours
- 19.5 h
- UV index (max)
- 6
- Typical sun hours
- 03:47 - 23:18
Rain & Snow
- Total rain
-
- Rainy days
- 18 days
- Cloud cover (avg)
- 78%
Humidity & Wind
- Humidity (avg)
- 80%
- Wind (avg)
-
- Wind (max gusts)
-
Daily climate explorer
Day 15 selected for July. Typical high 13.1°C and low 8.4°C.
Typical disruptions in July
Based on 30 years of historical data, these are the disruption patterns most likely to affect plans in July.
Cold High impact
Cold feels-like nights Measures: Cold feels-like nights (min <=5C). Observed about 24% of days (7.6 days/month) in July. Historical risk signal only, not a day-by-day forecast.
7.6 days / month
~24% of days
Why this matters
- Expected days 7.6 days / month
- Probability ~24% of days
- Intensity Up to ~5°C (P95)
Cold feels-like nights are possible on ~8 days. Long outdoor blocks become harder to sustain, so layer up and keep a warm indoor fallback nearby.
Rain High impact
Rain disruption Measures: Likely rain disruption days. Observed about 22% of days (6.8 days/month) in July. Historical risk signal only, not a day-by-day forecast.
6.8 days / month
~22% of days
Why this matters
- Expected days 6.8 days / month
- Probability ~22% of days
- Intensity Up to ~19mm (P95)
Rain disruption risk appears on ~7 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Rain High impact
Washout risk Measures: Washout day risk. Observed about 22% of days (6.7 days/month) in July. Historical risk signal only, not a day-by-day forecast.
6.7 days / month
~22% of days
Why this matters
- Expected days 6.7 days / month
- Probability ~22% of days
- Intensity Up to ~19mm (P95)
Washout conditions are possible on ~7 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Wind High impact
Strong gusts Measures: Strong gust days (>=60 km/h). Observed about 8% of days (2.5 days/month) in July. Historical risk signal only, not a day-by-day forecast.
2.5 days / month
~8% of days
Why this matters
- Expected days 2.5 days / month
- Probability ~8% of days
- Intensity Up to ~80km/h (P95)
Strong gusts are possible on ~3 days. Exposed activities and transport links are more likely to be disrupted, so keep sheltered alternatives ready.
Wind High impact
Stormy conditions Measures: Storm-impact proxy days. Observed about 3% of days (1.0 days/month) in July. Historical risk signal only, not a day-by-day forecast.
1.0 days / month
~3% of days
Why this matters
- Expected days 1.0 days / month
- Probability ~3% of days
- Intensity Up to ~78km/h (P95)
Stormy conditions are possible on ~1 days. Exposed activities and transport links are more likely to be disrupted, so keep sheltered alternatives ready.
Visibility Moderate
Fog-likely signal Measures: Fog-likely visibility proxy. Observed about 9% of days (2.8 days/month) in July. Historical risk signal only, not a day-by-day forecast.
2.8 days / month
~9% of days
Why this matters
- Expected days 2.8 days / month
- Probability ~9% of days
- Intensity Up to ~97% (P95)
Fog-likely conditions are possible on ~3 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Show all disruptions (14 more)
Rain High impact
Washout run Measures: Multi-day washout runs. Observed about 1.7 days/month in July. Historical risk signal only, not a day-by-day forecast.
1.7 days / month
Probability unavailable
Why this matters
- Expected days 1.7 days / month
- Probability —
- Intensity Up to ~19mm (P95)
Multi-day washout runs are possible on ~2 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Rain Moderate
Heavy rain days Measures: Heavy rain days (>=10mm). Observed about 7% of days (2.0 days/month) in July. Historical risk signal only, not a day-by-day forecast.
2.0 days / month
~7% of days
Why this matters
- Expected days 2.0 days / month
- Probability ~7% of days
- Intensity Up to ~29mm (P95)
Heavy rain is possible on ~2 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Cloud Minor
Cloudy days Measures: Cloudy days (cloud cover >=60%). Observed about 80% of days (24.6 days/month) in July. Historical risk signal only, not a day-by-day forecast.
24.6 days / month
~80% of days
Why this matters
- Expected days 24.6 days / month
- Probability ~80% of days
- Intensity Up to ~100% (P95)
Cloudy skies are possible on ~25 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Rain Minor
Wet days Measures: Wet days (>=0.1mm). Observed about 69% of days (21.3 days/month) in July. Historical risk signal only, not a day-by-day forecast.
21.3 days / month
~69% of days
Why this matters
- Expected days 21.3 days / month
- Probability ~69% of days
- Intensity Up to ~14mm (P95)
Measurable rain is possible on ~21 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Humidity Minor
High humidity Measures: High humidity days (RH >=80%). Observed about 59% of days (18.3 days/month) in July. Historical risk signal only, not a day-by-day forecast.
18.3 days / month
~59% of days
Why this matters
- Expected days 18.3 days / month
- Probability ~59% of days
- Intensity Up to ~94% (P95)
High humidity is possible on ~18 days. Comfort and pace can drop quickly, so plan shorter outdoor blocks with air-conditioned backup stops.
Cloud Minor
Mostly cloudy days Measures: Mostly cloudy days (cloud cover >=80%). Observed about 59% of days (18.2 days/month) in July. Historical risk signal only, not a day-by-day forecast.
18.2 days / month
~59% of days
Why this matters
- Expected days 18.2 days / month
- Probability ~59% of days
- Intensity Up to ~100% (P95)
Mostly cloudy skies are possible on ~18 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Rain Minor
Rainy hours Measures: Rain-hours signal (>=3h rain). Observed about 58% of days (18.1 days/month) in July. Historical risk signal only, not a day-by-day forecast.
18.1 days / month
~58% of days
Why this matters
- Expected days 18.1 days / month
- Probability ~58% of days
- Intensity Up to ~22h (P95)
Several rainy hours are possible on ~18 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Rain Minor
Wet most of day Measures: Wet-most-of-day signal (>=6h rain). Observed about 48% of days (14.9 days/month) in July. Historical risk signal only, not a day-by-day forecast.
14.9 days / month
~48% of days
Why this matters
- Expected days 14.9 days / month
- Probability ~48% of days
- Intensity Up to ~22h (P95)
Wet-most-of-day conditions are possible on ~15 days. Outdoor plans can become unreliable, so keep an indoor backup and flexibility around start times.
Wind Minor
Gusty days Measures: Gusty days (>=40 km/h). Observed about 42% of days (13.0 days/month) in July. Historical risk signal only, not a day-by-day forecast.
13.0 days / month
~42% of days
Why this matters
- Expected days 13.0 days / month
- Probability ~42% of days
- Intensity Up to ~72km/h (P95)
Gusty conditions are possible on ~13 days. Exposed activities and transport links are more likely to be disrupted, so keep sheltered alternatives ready.
Cloud Minor
Overcast days Measures: Overcast days (cloud cover >=95%). Observed about 31% of days (9.6 days/month) in July. Historical risk signal only, not a day-by-day forecast.
9.6 days / month
~31% of days
Why this matters
- Expected days 9.6 days / month
- Probability ~31% of days
- Intensity Up to ~100% (P95)
Overcast skies are possible on ~10 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Other Minor
Low visibility proxy: same as fog-likely (RH ≥90% AND cloud ≥95%) — true visibility requires hourly visibility data Measures: Low visibility proxy: same as fog-likely (RH ≥90% AND cloud ≥95%) — true visibility requires hourly visibility data. Observed about 9% of days (2.8 days/month) in July. Historical risk signal only, not a day-by-day forecast.
2.8 days / month
~9% of days
Why this matters
- Expected days 2.8 days / month
- Probability ~9% of days
- Intensity Up to ~97 (P95)
Low visibility proxy: same as fog-likely (RH ≥90% AND cloud ≥95%) — true visibility requires hourly visibility data is possible on ~3 days. Fixed-time outdoor plans are safer with a backup option and flexible timing.
Wind Minor
Breezy days Measures: Breezy days (mean wind >=25 km/h). Observed about 2% of days (0.7 days/month) in July. Historical risk signal only, not a day-by-day forecast.
0.7 days / month
~2% of days
Why this matters
- Expected days 0.7 days / month
- Probability ~2% of days
- Intensity Up to ~30km/h (P95)
Breezy conditions are possible on ~1 days. Exposed activities and transport links are more likely to be disrupted, so keep sheltered alternatives ready.
Cold Minor
Cold nights Measures: Cold nights (min <=5C). Observed about 2% of days (0.5 days/month) in July. Historical risk signal only, not a day-by-day forecast.
0.5 days / month
~2% of days
Why this matters
- Expected days 0.5 days / month
- Probability ~2% of days
- Intensity Up to ~5°C (P95)
Cold nights are possible on ~1 days. Long outdoor blocks become harder to sustain, so layer up and keep a warm indoor fallback nearby.
Cold Minor
Cold days Measures: Cold days (max <=10C). Observed about 1% of days (0.3 days/month) in July. Historical risk signal only, not a day-by-day forecast.
0.3 days / month
~1% of days
Why this matters
- Expected days 0.3 days / month
- Probability ~1% of days
- Intensity Up to ~10°C (P95)
Cold daytime conditions are possible on ~0 days. Long outdoor blocks become harder to sustain, so layer up and keep a warm indoor fallback nearby.
Frequently asked questions
Is July a good time to visit Reykjavik?
Typical July days in Reykjavik reach highs of 14°C (57°F) with nights around 9°C (48°F). It usually feels cool by day and cool after dark. It is one of the drier months, which suits outdoor exploring and sightseeing.
What are temperatures like in July?
In July, you can usually expect highs of 14°C (57°F) and lows near 9°C (48°F). That means cool days and cool nights, so pack layers you can add or remove.
How much does it rain in July?
Rainfall in July averages 89 mm (3.5 in) across roughly 18 days. Overall it is a very wet time of year, so a light rain jacket and waterproof shoes are very handy.
How many hours of daylight are there in July?
You can expect about 20 hours of daylight in July. Sunrise is typically around 03:47 and sunset near 23:18. Very long days give you plenty of daylight for exploring.
How strong is the sun in July?
UV levels are moderate (around 6); sunscreen and sunglasses are still a good idea.
Is it windy in July?
In July, average wind speeds are around 12 km/h (7 mph), with gusts on the windiest days reaching about 58 km/h (36 mph). On the ground, it is it can feel quite windy at times, particularly when weather systems move through.