World Resorts Vietnam Hoi An Weather

Hoi An sea water temperature

Current sea water temperature:
+85.1°F
Minimum sea water temperature in October: 86.4°F
Maximum sea water temperature in October: 79.2°F
Average sea water temperature in October: 82.9°F

Sea water temperature for the last 10 days:

October 3 85.1°F September 28 84.4°F
October 2 85.5°F September 27 84.0°F
October 1 85.3°F September 26 84.2°F
September 30 85.1°F September 25 84.4°F
September 29 84.6°F September 24 84.6°F

When is the warmest sea in Hoi An?

Based on the data about daily sea water temperature for the last three years the warmest sea in Hoi An was noticed in August, September and July.

Monthly Sea Temperatures in Hoi An, °F

Sea water temperature in August, °F

Show year:
2026
2025
2024

The average sea water temperature in August of 2026 was 86.1°F. The highest and lowest sea temperatures during the month were 86.9°F and 84.9°F.

Sea water temperature in September, °F

Show year:
2026
2025
2024

The average sea water temperature in September of 2026 was 85.0°F. The highest and lowest sea temperatures during the month were 86.0°F and 84.0°F.

Sea water temperature in July, °F

Show year:
2026
2025
2024

The average sea water temperature in July of 2026 was 84.9°F. The highest and lowest sea temperatures during the month were 86.9°F and 82.6°F.

Best time for vacation in Hoi An

Sunniest months:
April 17 days
May 16 days
June 16 days
Warmest months:
June 90.8 °F
August 90.2 °F
July 89.7 °F
Warmest sea temp:
August 85.6 °F
September 85.4 °F
July 84.5 °F
Coldest months:
January 73.9 °F
December 74.7 °F
February 76.1 °F
Rainiest months:
December 15 days
November 14 days
October 13 days
Windiest months:
December 7.8 mph
November 7.3 mph
April 7.2 mph

Hoi An on a weather map

Hoi An
+77°F
NE 5 mph
Feels like: +81°F
Precip.: 13%
Places in Vietnam:
Name
°F
+77°F
+73°F
+61°F
+77°F
+77°F
+79°F
+75°F
+77°F
+79°F
+75°F
+79°F
+79°F
+79°F
+77°F
+79°F
24 Hours Forecast
Hoi An
Local time: 06:24
October 04, sunday
0900
81°F
NW
5 mph
1200
84°F
W
8 mph
1500
84°F
W
9 mph
1800
82°F
NW
7 mph
2100
81°F
N
6 mph
October 05, monday
0000
79°F
N
5 mph
0300
77°F
NE
5 mph
0600
77°F
NE
4 mph

Best place for vacation:

Units of measurement: °C / °F