The highest day temperature in February 2026 was 66°F. The lowest night temperature was 33°F. The average values for day and night temperatures during February were 53.7°F и 46.9°F respectivly.

The average sea surface temperature in February 2026 for Nagasaki was 61.2°F. The maximum and minimum values were 59.4°F and 61.8°F respectively.

You can expect various weather conditions during February. Be ready for sunny, cloudy or even gloomy days.

Precipitation total in February for Nagasaki is 3.2 in. It makes february one of the least rainy months of the year.

The average wind speed in February is 10.7 mph. It makes February one of the most windy months of the year for Nagasaki.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Nagasaki in February is 5.6 hours.