Daily brief · Iceland

Reykjavík 2026-09-26

Verified against recorded weather

Weather-risk signals · signal engine (Open-Meteo)

A heavy rain day could hit

extreme

A single day could bring around 28.4mm of rain on 2026-09-30 — above the local heavy-rain reference for this time of year (around 20.8mm in a day). Construction, drainage, and outdoor events should review schedules.

construction · outdoor events · drainage operators · agriculture · fishing

Frost is possible this week

active

Lows could dip to about 1°C on 2026-10-08 — under the 2°C frost line that damages buds and tender leaves. Orchards, gardens, and tender crops may face damage.

A cold stretch is on the way

extreme

14 days in a row could stay below 15°C, starting 2026-09-26. Longer than this region usually sees at this time of year. Crops in flowering, livestock, and rooftop venues may be exposed.

crop growers · outdoor hospitality

Water conditions are improving

active

Around 108.7mm of rain has fallen over the past 14 days — above the 23.3mm typical for this period. A healthier water balance is restoring across this area.

hydro operators · agriculture · reservoir ops · fishing

Heat is building above the usual range

low

Daily highs may average around 10.2°C over the next week — above the 9.2°C typical for this time of year. Outdoor work, livestock, and crops in flowering can come under stress.

outdoor farmers · tourism · energy demand · fishing · construction

What the day recorded · Open-Meteo daily archive

Rain 0.1 mmMax 8.9 °CMin 5.3 °CGusts 41.4 km/h
Water conditions are improving: recorded 0.1 mm vs a local baseline of 23.3 mm — below the local baseline
Heat is building above the usual range: recorded 8.9°C vs a local baseline of 9.2°C — near the local baseline

Directional single-day check: recorded daily values compared against the historical baseline each signal was measured from. Signals cover multi-day windows, so this is context, not a forecast grade.

What people were seeing · community field reports

No field observations were posted for this place on 2026-09-26.