The typhoon has a central atmospheric pressure of 940 hectopascals. The Sakishima islands in Okinawa, which are within the storm zone, are expected to experience gusts of wind till early Thursday.
Before 7 PM on Wednesday, a maximum wind speed of over 180 kilometers an hour was recorded at Shimojishima Airport on Miyako Island.
Waves of up to 9 meters are expected near the Sakishima islands.
Miyakojima city on Miyako Island had more than 500 millimeters of rain within the past 24 hours, more than double the norm for September, prompting alerts over mudslides. The Meteorological Agency says the city has been suffering from the heaviest rainfall in 50 years.
The agency is calling on residents to be on the alert against gusts, high waves, and mudslides. Residents are being advised not to leave their homes.
Advisories of high tide, lightning, and gusts, including tornadoes, have also been issued.
Talim is expected to gradually take an easterly course, and approach western and eastern Japan over the 3-day weekend beginning on Saturday.
The typhoon has left nearly 20,000 houses, or more than 80 percent of the households in Miyakojima City, without power as of 5 AM on Thursday.
A hotel in the city said rooms are without air conditioning, much to the discomfort of its guests.