Measurements:
°C
°F
CURRENT WEATHER
11:40
Nagasaki
94°F
E 4 mph
Feels like: 106°F
Precip: 4%
World Resorts Japan Nagasaki Weather

7 Day Weather Forecast

07.27
mon
DAY
94°F
E 4 mph
precip
4%
NIGHT
84°F
S 4 mph
precip
11%
07.28
tue
DAY
92°F
E 9 mph
precip
6%
NIGHT
84°F
SE 4 mph
precip
13%
07.29
wed
DAY
92°F
E 10 mph
precip
8%
NIGHT
82°F
SE 6 mph
precip
16%
07.30
thu
DAY
92°F
E 11 mph
precip
4%
NIGHT
82°F
SE 6 mph
precip
13%
07.31
fri
DAY
92°F
E 11 mph
precip
3%
NIGHT
82°F
SE 6 mph
precip
12%
08.01
sat
DAY
92°F
E 9 mph
precip
3%
NIGHT
82°F
SE 4 mph
precip
9%
08.02
sun
DAY
92°F
E 6 mph
precip
3%
NIGHT
84°F
SW 3 mph
precip
7%

Nagasaki Sea Water Temperature in July, °F

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Nagasaki was 26.8°F. The maximum and minimum values were 24.0°F and 30.2°F respectively.

Nagasaki on the Weather Map

Best Time to Visit Nagasaki
The most sunny months:
October 18 days
May 14 days
August 13 days
The most warm months:
August 91.8 °F
July 88.2 °F
September 86.6 °F
Warmest sea temperature:
August 86.4 °F
September 83.7 °F
July 82.3 °F
The most cold months:
January 50.4 °F
February 52.0 °F
December 54.1 °F
The most rainy months:
July 11 days
June 11 days
August 10 days
The most windy months:
January 11 mph
February 11 mph
December 11 mph
more details