Measurements:
°C
°F
CURRENT WEATHER
14:49
Nagasaki
78°F
NE 5 mph
Feels like: 82°F
Precip: 20%
World Resorts Japan Nagasaki Weather

7 Day Weather Forecast

10.19
mon
DAY
80°F
NE 6 mph
precip
25%
NIGHT
76°F
N 1 mph
precip
12%
10.20
tue
DAY
78°F
NE 6 mph
precip
23%
NIGHT
78°F
N 11 mph
precip
31%
10.21
wed
DAY
74°F
SE 20 mph
precip
14%
NIGHT
66°F
S 14 mph
precip
6%
10.22
thu
DAY
68°F
S 16 mph
precip
11%
NIGHT
62°F
SW 11 mph
precip
11%
10.23
fri
DAY
72°F
SE 3 mph
precip
11%
NIGHT
72°F
SW 4 mph
precip
12%
10.24
sat
DAY
78°F
SW 4 mph
precip
19%
NIGHT
76°F
SW 2 mph
precip
23%
10.25
sun
DAY
80°F
N 6 mph
precip
14%
NIGHT
78°F
N 8 mph
precip
50%

Nagasaki Sea Water Temperature in October, °F

Select Year: 2026 2025 2024

The average sea surface temperature in October 2026 for Nagasaki was 25.5°F. The maximum and minimum values were 24.5°F and 26.6°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 91.6 °F
July 88.2 °F
September 86.4 °F
Warmest sea temperature:
August 86.5 °F
September 83.8 °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 9 days
The most windy months:
January 11 mph
February 11 mph
December 11 mph
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