Commonly used acronyms and what they stand for: 1  ADA - Americans with Disabilities Act of 1990, Pub. 2  AD&D - Accidental Death and Dismemberment. 3  ADEA - Age Discrimination in Employment Act of 1967, Pub. 4  CFR - Code of Federal Regulations. 5  CMS - Centers for Medicare & Medicaid Services.
The best time to visit Tokyo is March, April, October, and November. The weather is nearly perfect, the summer rains and heat have passed, and sightseeing is at its best. Best Time for Good Weather: Late March to May and October to early December. Best Time for Sightseeing: Late March, April, October, and November.
Weather in Tokyo in January. The average maximum daytime temperature in Tokyo in January is a cool 10Â°C (50Â°F). There are usually 6 hours of bright sunshine each day, which represents 59% of the 10 hours of daylight. The average sea temperature in and around Tokyo in January is 15Â°C (59Â°F). Expect 43mm (1.7 inches) of rainfall across the whole of January with 9 days with some rain falling. Maximum UV levels will be low (2 UV index) at midday when the skies are clear. The average night-time temperature is usually a cold 0Â°C (32Â°F).