Weather in Samui on 15 August 2026
Preliminary outlook for 15 August 2026
A preliminary estimate based on the 2019–2025 archive: daytime around +29°C and nighttime around +27°C, average precipitation 0.7 mm, wind around 4 m/s, humidity around 75%.
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.
+28°C
Weather archive — latest year: 2025
Patchy rain nearby
Weather archive — latest year: 2025
Nighttime: +27°C
Precipitation: 1.4 mm
Wind: 8 — 9 m/s
Humidity: 78%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +28°C | Sun hours | 8 h |
| UV index | 6 | Cloud cover (avg.) | 71% |
| Pressure (avg.) | 756 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +31°C | Dew point (avg.) | +23°C |
| Heat index (avg.) | +31°C | Wind chill (avg.) | +28°C |
| Wind gusts (max.) | 18 m/s | Wind direction (avg.) | 265° ← (W) |
Sunrise
06:12
Duration
12 h 25 min
Sunset
18:37
Moonrise
23:18
Moonset
11:17
Moon phase
Last Quarter
Illumination
51%
+29°C
Weather archive — for 2024 year
Patchy rain nearby
Weather archive — for 2024 year
Nighttime: +28°C
Precipitation: 0.1 mm
Wind: 3 — 3 m/s
Humidity: 74%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +30°C | Sun hours | 7 h |
| UV index | 6 | Cloud cover (avg.) | 77% |
| Pressure (avg.) | 756 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 8 km | Sea temperature | — |
| Feels like (avg.) | +34°C | Dew point (avg.) | +24°C |
| Heat index (avg.) | +34°C | Wind chill (avg.) | +29°C |
| Wind gusts (max.) | 7 m/s | Wind direction (avg.) | 228° ← (W) |
Sunrise
06:12
Duration
12 h 25 min
Sunset
18:37
Moonrise
14:39
Moonset
01:27
Moon phase
Waxing Gibbous
Illumination
71%
+28°C
Weather archive — for 2023 year
Patchy rain nearby
Weather archive — for 2023 year
Nighttime: +28°C
Precipitation: 0.1 mm
Wind: 7 — 8 m/s
Humidity: 77%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +29°C | Sun hours | 11 h |
| UV index | 6 | Cloud cover (avg.) | 68% |
| Pressure (avg.) | 758 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 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.) | 13 m/s | Wind direction (avg.) | 253° ↙ (WSW) |
Sunrise
06:11
Duration
12 h 27 min
Sunset
18:38
Moonrise
05:10
Moonset
18:05
Moon phase
New Moon
Illumination
0%
+29°C
Weather archive — for 2022 year
Moderate rain at times
Weather archive — for 2022 year
Nighttime: +28°C
Precipitation: 1.3 mm
Wind: 3 — 4 m/s
Humidity: 71%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +30°C | Sun hours | 8 h |
| UV index | 6 | Cloud cover (avg.) | 66% |
| Pressure (avg.) | 757 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +33°C | Dew point (avg.) | +24°C |
| Heat index (avg.) | +33°C | Wind chill (avg.) | +28°C |
| Wind gusts (max.) | 7 m/s | Wind direction (avg.) | 272° ← (W) |
Sunrise
06:12
Duration
12 h 25 min
Sunset
18:37
Moonrise
21:26
Moonset
09:01
Moon phase
Waning Gibbous
Illumination
76%
+27°C
Weather archive — for 2021 year
Moderate rain at times
Weather archive — for 2021 year
Nighttime: +23°C
Precipitation: 1.5 mm
Wind: 3 — 4 m/s
Humidity: 76%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +29°C | Sun hours | 7 h |
| UV index | 6 | Cloud cover (avg.) | 64% |
| Pressure (avg.) | 757 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 9 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.) | 8 m/s | Wind direction (avg.) | 221° ↘ (SSE) |
Sunrise
06:12
Duration
12 h 25 min
Sunset
18:37
Moonrise
11:56
Moonset
23:58
Moon phase
First Quarter
Illumination
47%
+29°C
Weather archive — for 2020 year
Clear/Sunny
Weather archive — for 2020 year
Nighttime: +27°C
Precipitation: 0.1 mm
Wind: 2 — 2 m/s
Humidity: 71%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +29°C | Sun hours | 9 h |
| UV index | 7 | Cloud cover (avg.) | 53% |
| Pressure (avg.) | 757 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +33°C | Dew point (avg.) | +23°C |
| Heat index (avg.) | +33°C | Wind chill (avg.) | +29°C |
| Wind gusts (max.) | 4 m/s | Wind direction (avg.) | 136° ↘ (SSE) |
Sunrise
06:12
Duration
12 h 25 min
Sunset
18:37
Moonrise
02:19
Moonset
15:20
Moon phase
Waning Crescent
Illumination
16%
+29°C
Weather archive — for 2019 year
Overcast
Weather archive — for 2019 year
Nighttime: +28°C
Precipitation: 0.6 mm
Wind: 5 — 6 m/s
Humidity: 77%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +30°C | Sun hours | 4 h |
| UV index | 7 | Cloud cover (avg.) | 63% |
| Pressure (avg.) | 758 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +33°C | Dew point (avg.) | +24°C |
| Heat index (avg.) | +33°C | Wind chill (avg.) | +29°C |
| Wind gusts (max.) | 11 m/s | Wind direction (avg.) | 259° ↙ (WSW) |
Sunrise
06:11
Duration
12 h 27 min
Sunset
18:38
Moonrise
18:39
Moonset
05:50
Moon phase
Full Moon
Illumination
100%
Weather in Samui on 15 August in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+28°C
|
+27°C
|
+28°C | 8 h | 6 | 78% | 8 — 9 m/s |
| 2024 |
+30°C
|
+28°C
|
+29°C | 7 h | 6 | 74% | 3 — 3 m/s |
| 2023 |
+29°C
|
+28°C
|
+28°C | 11 h | 6 | 77% | 7 — 8 m/s |
| 2022 |
+30°C
|
+28°C
|
+29°C | 8 h | 6 | 71% | 3 — 4 m/s |
| 2021 |
+29°C
|
+23°C
|
+27°C | 7 h | 6 | 76% | 3 — 4 m/s |
| 2020 |
+29°C
|
+27°C
|
+29°C | 9 h | 7 | 71% | 2 — 2 m/s |
| 2019 |
+30°C
|
+28°C
|
+29°C | 4 h | 7 | 77% | 5 — 6 m/s |