Weather in Hoi An on 21 September 2026
Preliminary outlook for 21 September 2026
A preliminary estimate based on the 2019–2025 archive: daytime around +30°C and nighttime around +25°C, average precipitation 2 mm, wind around 2 m/s, humidity around 83%.
This is a climate-based estimate, not a precise long-range forecast. It is replaced by hourly data when the date enters the forecast window.
+27°C
Weather archive — latest year: 2025
Patchy rain nearby
Weather archive — latest year: 2025
Nighttime: +25°C
Precipitation: 1.9 mm
Wind: 2 — 3 m/s
Humidity: 84%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +30°C | Sun hours | 5 h |
| UV index | 6 | Cloud cover (avg.) | 73% |
| Pressure (avg.) | 755 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +31°C | Dew point (avg.) | +24°C |
| Heat index (avg.) | +31°C | Wind chill (avg.) | +27°C |
| Wind gusts (max.) | 4 m/s | Wind direction (avg.) | 133° ↗ (NE) |
Sunrise
05:36
Duration
12 h 08 min
Sunset
17:44
Moonrise
04:56
Moonset
17:24
Moon phase
New Moon
Illumination
0%
+27°C
Weather archive — for 2024 year
Moderate or heavy rain shower
Weather archive — for 2024 year
Nighttime: +25°C
Precipitation: 8 mm
Wind: 2 — 3 m/s
Humidity: 84%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +30°C | Sun hours | 9 h |
| UV index | 6 | Cloud cover (avg.) | 64% |
| Pressure (avg.) | 753 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +31°C | Dew point (avg.) | +24°C |
| Heat index (avg.) | +31°C | Wind chill (avg.) | +27°C |
| Wind gusts (max.) | 6 m/s | Wind direction (avg.) | 222° ↗ (NE) |
Sunrise
05:36
Duration
12 h 08 min
Sunset
17:44
Moonrise
20:14
Moonset
08:32
Moon phase
Waning Gibbous
Illumination
70%
+28°C
Weather archive — for 2023 year
Patchy rain nearby
Weather archive — for 2023 year
Nighttime: +25°C
Precipitation: 0.1 mm
Wind: 2 — 4 m/s
Humidity: 80%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +31°C | Sun hours | 5 h |
| UV index | 7 | Cloud cover (avg.) | 42% |
| Pressure (avg.) | 758 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +31°C | Dew point (avg.) | +24°C |
| Heat index (avg.) | +31°C | Wind chill (avg.) | +28°C |
| Wind gusts (max.) | 5 m/s | Wind direction (avg.) | 149° ↗ (ENE) |
Sunrise
05:36
Duration
12 h 08 min
Sunset
17:44
Moonrise
10:38
Moonset
21:59
Moon phase
First Quarter
Illumination
43%
+27°C
Weather archive — for 2022 year
Moderate rain at times
Weather archive — for 2022 year
Nighttime: +25°C
Precipitation: 1 mm
Wind: 2 — 3 m/s
Humidity: 79%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +29°C | Sun hours | 6 h |
| UV index | 6 | Cloud cover (avg.) | 73% |
| Pressure (avg.) | 756 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +30°C | Dew point (avg.) | +23°C |
| Heat index (avg.) | +30°C | Wind chill (avg.) | +27°C |
| Wind gusts (max.) | 4 m/s | Wind direction (avg.) | 157° ↗ (ENE) |
Sunrise
05:36
Duration
12 h 08 min
Sunset
17:44
Moonrise
01:27
Moonset
14:51
Moon phase
Waning Crescent
Illumination
15%
+27°C
Weather archive — for 2021 year
Patchy rain nearby
Weather archive — for 2021 year
Nighttime: +25°C
Precipitation: 2.2 mm
Wind: 2 — 3 m/s
Humidity: 86%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +29°C | Sun hours | 7 h |
| UV index | 6 | Cloud cover (avg.) | 70% |
| Pressure (avg.) | 757 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +30°C | Dew point (avg.) | +24°C |
| Heat index (avg.) | +30°C | Wind chill (avg.) | +26°C |
| Wind gusts (max.) | 6 m/s | Wind direction (avg.) | 166° ↗ (NE) |
Sunrise
05:36
Duration
12 h 08 min
Sunset
17:44
Moonrise
18:10
Moonset
05:39
Moon phase
Full Moon
Illumination
100%
+28°C
Weather archive — for 2020 year
Patchy rain nearby
Weather archive — for 2020 year
Nighttime: +25°C
Precipitation: 0.1 mm
Wind: 2 — 3 m/s
Humidity: 82%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +30°C | Sun hours | 4 h |
| UV index | 6 | Cloud cover (avg.) | 64% |
| Pressure (avg.) | 758 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 9 km | Sea temperature | — |
| Feels like (avg.) | +32°C | Dew point (avg.) | +24°C |
| Heat index (avg.) | +32°C | Wind chill (avg.) | +28°C |
| Wind gusts (max.) | 4 m/s | Wind direction (avg.) | 174° → (ESE) |
Sunrise
05:36
Duration
12 h 08 min
Sunset
17:44
Moonrise
09:15
Moonset
21:02
Moon phase
Waxing Crescent
Illumination
25%
+26°C
Weather archive — for 2019 year
Patchy rain nearby
Weather archive — for 2019 year
Nighttime: +23°C
Precipitation: 0.6 mm
Wind: 2 — 2 m/s
Humidity: 86%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +28°C | Sun hours | 8 h |
| UV index | 6 | Cloud cover (avg.) | 65% |
| Pressure (avg.) | 758 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +28°C | Dew point (avg.) | +23°C |
| Heat index (avg.) | +28°C | Wind chill (avg.) | +26°C |
| Wind gusts (max.) | 6 m/s | Wind direction (avg.) | 147° ↑ (NNE) |
Sunrise
05:36
Duration
12 h 08 min
Sunset
17:44
Moonrise
22:50
Moonset
11:14
Moon phase
Last Quarter
Illumination
40%
Weather in Hoi An on 21 September in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+30°C
|
+25°C
|
+27°C | 5 h | 6 | 84% | 2 — 3 m/s |
| 2024 |
+30°C
|
+25°C
|
+27°C | 9 h | 6 | 84% | 2 — 3 m/s |
| 2023 |
+31°C
|
+25°C
|
+28°C | 5 h | 7 | 80% | 2 — 4 m/s |
| 2022 |
+29°C
|
+25°C
|
+27°C | 6 h | 6 | 79% | 2 — 3 m/s |
| 2021 |
+29°C
|
+25°C
|
+27°C | 7 h | 6 | 86% | 2 — 3 m/s |
| 2020 |
+30°C
|
+25°C
|
+28°C | 4 h | 6 | 82% | 2 — 3 m/s |
| 2019 |
+28°C
|
+23°C
|
+26°C | 8 h | 6 | 86% | 2 — 2 m/s |