Iceland marks the September equinox tomorrow, the point when daylight and darkness are briefly equal worldwide. From then on, nights will lengthen steadily until the December solstice.
Unlike many countries, Iceland’s daylight shifts are particularly dramatic. In Reykjavík, tomorrow will bring just over 12 hours of sun. Within three months, that will drop to little more than four hours, while in summer the opposite holds true, with near-constant daylight.
The Icelandic Meteorological Office says the equinox coincides with unsettled weather. As reported by RÚV, a shallow depression is moving east across the north today, with westerly winds and rain. Light showers are also expected in the south and southeast, with highs of 5–10°C.
On Monday, the day of the equinox, southerly winds will ease, leaving calmer and slightly warmer conditions, especially in the east and north. The rest of the week will bring mild but wet southerlies: damp midweek, heavier rain in the south by Friday, and a brighter Saturday in the northeast.
The Icelandic Road Administration has warned of icy patches on several roads, underlining that despite the equinox, Iceland’s autumn can still carry a winter bite.