Measurements:
°C
°F
CURRENT WEATHER
06:58
Nagasaki
80°F
N 4 mph
Feels like: 86°F
Precip: 35%
World Resorts Japan Nagasaki Weather

7 Day Weather Forecast

07.07
tue
DAY
84°F
NE 7 mph
precip
22%
NIGHT
80°F
N 5 mph
precip
16%
07.08
wed
DAY
86°F
N 7 mph
precip
10%
NIGHT
80°F
NW 1 mph
precip
28%
07.09
thu
DAY
88°F
NW 5 mph
precip
5%
NIGHT
80°F
NW 4 mph
precip
12%
07.10
fri
DAY
88°F
W 2 mph
precip
7%
NIGHT
80°F
W 5 mph
precip
12%
07.11
sat
DAY
86°F
NW 3 mph
precip
22%
NIGHT
80°F
SW 4 mph
precip
20%
07.12
sun
DAY
88°F
N 5 mph
precip
8%
NIGHT
80°F
S 2 mph
precip
15%
07.13
mon
DAY
86°F
NE 4 mph
precip
17%
NIGHT
80°F
NE 4 mph
precip
16%

Nagasaki Sea Water Temperature in July, °F

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Nagasaki was 28.6°F. The maximum and minimum values were 27.1°F and 29.5°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 88.3 °F
September 86.6 °F
Warmest sea temperature:
August 86.4 °F
September 83.7 °F
July 82.2 °F
The most cold months:
January 50.4 °F
February 52.0 °F
December 54.1 °F
The most rainy months:
July 12 days
June 11 days
August 10 days
The most windy months:
January 11 mph
February 11 mph
December 11 mph
more details