
The Russian Arctic is experiencing an unprecedented late-summer heat wave, with Verkhoyansk recording a staggering +25.5°C, marking temperatures never before observed so late in the season. This extreme warmth is part of a broader Siberian anomaly, with extraordinary highs spreading eastward across the region.
At Batamaj, a series of seven consecutive days with maximums above 25°C has been recorded, with two more days expected, an event unprecedented for this late in the year. Even regions as far north as 70°N are experiencing maximums exceeding 25°C, emphasizing the scale and extremity of this Arctic heat wave.
Other remarkable readings include: Dikson Island (73°N) at 21°C and Karaul (70°N) at 24.3°C, both 3°C above any previously recorded temperatures for this late in the season. These anomalies are mind-blowing, not just for their intensity but for their timing, occurring as the Arctic typically transitions into the cooling of September.
This extraordinary warmth is unprecedented for the cold pole of Verkhoyansk, traditionally known for some of the lowest winter temperatures on Earth. The persistence of high maxima in the same area demonstrates that the Arctic is experiencing climate extremes with a historic amplitude, directly challenging historical norms for late-summer Siberia.
In summary, Verkhoyansk at +25.5°C and surrounding Arctic regions are witnessing a record-breaking, late-season heat wave. With continued anomalous highs expected, September 2025 is poised to pulverize every temperature record in this part of the Russian Arctic, marking an extraordinary chapter in Arctic climate history.

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