The Laugavegur trail in Iceland is cold and wintry in January. Starting from Landmannalaugar, expect daytime temperatures around -1°C and nighttime temperatures around -5°C. There might be light freezing rain and patchy snow, with some partly cloudy and sunny weather.
Heading towards Hrafntinnusker and Álftavatn, it stays cold with daytime highs around 0°C and nighttime lows around -5°C. You might see light freezing rain, snow, and occasional rain showers. Partly cloudy skies and some sunny times are common.
As you go south to Emstrur, it gets slightly warmer with highs around 5°C and lows around 1°C. You'll encounter more rain, with frequent moderate to heavy showers and overcast skies. There are still some sunny breaks but less often.
Finally, in Þórsmörk, temperatures are similar to Emstrur. Expect moderate rain, overcast days, and some sunny or partly cloudy periods.
Overall, be ready for cold temperatures, some snow, rain, and varying cloud cover.
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