As Japan approaches February 4th-*Risshun*, the first day of spring on the traditional lunar calendar-residents are bracing for a month of fluctuating temperatures and a notably high pollen count [[1]], [[3]]. While marking a transition from the coldest winter months, forecasts predict significant temperature swings throughout February, alongside a continuation of dry conditions in many areas. These conditions pose potential risks ranging from seasonal allergies impacting millions to increased fire hazards, requiring preparedness from citizens and authorities alike.
Mild Temperatures Expected After February 4th, But Fluctuations and Pollen Levels Remain Concerns
Japan is set to experience a shift in weather patterns beginning February 4th, traditionally known as “Risshun” – the first day of spring in the traditional Japanese calendar. While the date signals a move away from the coldest temperatures, forecasters are warning of significant temperature swings and a high pollen count throughout February.
According to weather experts, the initial warming trend following February 4th will be followed by periods of cooler weather. This fluctuation in temperatures is expected to continue throughout the month, requiring residents to adjust to changing conditions.
A prolonged period of dry weather, particularly impacting the Pacific side of the country, is also anticipated to continue. This dryness raises concerns about potential fire hazards, and authorities are urging caution regarding fire safety and water conservation. The lack of rainfall underscores the importance of responsible resource management.
Regional forecasts indicate that temperatures in areas including northeastern Japan, eastern Japan, the Kinki region, the Chugoku region, and northern Kyushu will be near or slightly below average for the first few days of February. However, temperatures are expected to rise considerably around February 6th in these regions.
The forecast also highlights the expected increase in Japanese cedar pollen dispersal. Individuals with allergies are advised to take necessary precautions as pollen levels rise. This annual event impacts millions of people across Japan, causing seasonal allergic rhinitis.
In the Kanto region, the dry conditions are expected to persist, prompting continued advisories regarding fire risks and water usage. Residents are encouraged to be mindful of these potential hazards and take appropriate preventative measures.
