World Resorts Vietnam Hoi An Weather

Hoi An sea water temperature

Current sea water temperature:
+73.6°F
Minimum sea water temperature in February: 77.4°F
Maximum sea water temperature in February: 68.4°F
Average sea water temperature in February: 73.3°F

Sea water temperature for the last 10 days:

February 3 73.6°F January 29 73.9°F
February 2 73.8°F January 28 73.9°F
February 1 73.6°F January 27 73.8°F
January 31 73.8°F January 26 73.6°F
January 30 73.9°F January 25 73.6°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:
2025
2024
2023

The average sea water temperature in August of 2025 was 85.4°F. The highest and lowest sea temperatures during the month were 86.0°F and 84.6°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 85.0°F. The highest and lowest sea temperatures during the month were 86.4°F and 84.0°F.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 85.0°F. The highest and lowest sea temperatures during the month were 86.4°F and 83.1°F.

Best time for vacation in Hoi An

Sunniest months:
April 17 days
May 16 days
June 16 days
Warmest months:
June 90.9 °F
August 90.3 °F
July 89.8 °F
Warmest sea temp:
August 85.5 °F
September 85.4 °F
July 84.5 °F
Coldest months:
January 73.9 °F
December 74.7 °F
February 76.2 °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
+66°F
E 3 mph
Feels like: +66°F
Precip.: 100%
Places in Vietnam:
Name
°F
+70°F
+68°F
+57°F
+66°F
+72°F
+70°F
+70°F
+70°F
+70°F
+70°F
+79°F
+61°F
+59°F
+66°F
+75°F
24 Hours Forecast
Hoi An
Local time: 03:56
February 04, wednesday
0600
64°F
E
4 mph
0900
72°F
E
2 mph
1200
75°F
SW
4 mph
1500
73°F
SW
6 mph
1800
70°F
W
4 mph
2100
68°F
N
2 mph
February 05, thursday
0000
68°F
NE
5 mph
0300
66°F
NE
4 mph

Best place for vacation:

Units of measurement: °C / °F