Weather in Ubatuba on 18 August 2026
Preliminary outlook for 18 August 2026
A preliminary estimate based on the 2019–2025 archive: daytime around +28°C and nighttime around +15°C, average precipitation 0.2 mm, wind around 2 m/s, humidity around 62%.
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.
+15°C
Weather archive — latest year: 2025
Clear/Sunny
Weather archive — latest year: 2025
Nighttime: +11°C
Precipitation: 0 mm
Wind: 2 — 4 m/s
Humidity: 79%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +23°C | Sun hours | 7 h |
| UV index | 5 | Cloud cover (avg.) | 32% |
| Pressure (avg.) | 767 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +16°C | Dew point (avg.) | +11°C |
| Heat index (avg.) | +16°C | Wind chill (avg.) | +16°C |
| Wind gusts (max.) | 5 m/s | Wind direction (avg.) | 96° ↘ (SE) |
Sunrise
06:23
Duration
11 h 22 min
Sunset
17:45
Moonrise
02:32
Moonset
13:08
Moon phase
Last Quarter
Illumination
29%
+22°C
Weather archive — for 2024 year
Clear/Sunny
Weather archive — for 2024 year
Nighttime: +16°C
Precipitation: 0 mm
Wind: 1 — 1 m/s
Humidity: 33%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +31°C | Sun hours | 11 h |
| UV index | 6 | Cloud cover (avg.) | 0% |
| Pressure (avg.) | 764 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +21°C | Dew point (avg.) | +5°C |
| Heat index (avg.) | +21°C | Wind chill (avg.) | +21°C |
| Wind gusts (max.) | 3 m/s | Wind direction (avg.) | 127° ↖ (NNW) |
Sunrise
06:23
Duration
11 h 22 min
Sunset
17:45
Moonrise
16:40
Moonset
05:34
Moon phase
Waxing Gibbous
Illumination
93%
+21°C
Weather archive — for 2023 year
Clear/Sunny
Weather archive — for 2023 year
Nighttime: +16°C
Precipitation: 0 mm
Wind: 2 — 3 m/s
Humidity: 56%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +29°C | Sun hours | 11 h |
| UV index | 6 | Cloud cover (avg.) | 12% |
| Pressure (avg.) | 761 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +21°C | Dew point (avg.) | +12°C |
| Heat index (avg.) | +21°C | Wind chill (avg.) | +21°C |
| Wind gusts (max.) | 6 m/s | Wind direction (avg.) | 180° ↖ (NNW) |
Sunrise
06:23
Duration
11 h 22 min
Sunset
17:45
Moonrise
07:48
Moonset
19:43
Moon phase
Waxing Crescent
Illumination
9%
+21°C
Weather archive — for 2022 year
Clear/Sunny
Weather archive — for 2022 year
Nighttime: +16°C
Precipitation: 0 mm
Wind: 3 — 5 m/s
Humidity: 54%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +30°C | Sun hours | 11 h |
| UV index | 6 | Cloud cover (avg.) | 4% |
| Pressure (avg.) | 760 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +21°C | Dew point (avg.) | +11°C |
| Heat index (avg.) | +21°C | Wind chill (avg.) | +21°C |
| Wind gusts (max.) | 11 m/s | Wind direction (avg.) | 196° ↑ (N) |
Sunrise
06:23
Duration
11 h 22 min
Sunset
17:45
Moonrise
No moonrise
Moonset
10:45
Moon phase
Waning Gibbous
Illumination
54%
+22°C
Weather archive — for 2021 year
Clear/Sunny
Weather archive — for 2021 year
Nighttime: +17°C
Precipitation: 0 mm
Wind: 1 — 1 m/s
Humidity: 59%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +29°C | Sun hours | 11 h |
| UV index | 6 | Cloud cover (avg.) | 6% |
| Pressure (avg.) | 765 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +21°C | Dew point (avg.) | +12°C |
| Heat index (avg.) | +21°C | Wind chill (avg.) | +20°C |
| Wind gusts (max.) | 3 m/s | Wind direction (avg.) | 98° ↙ (SW) |
Sunrise
06:23
Duration
11 h 22 min
Sunset
17:45
Moonrise
13:52
Moonset
03:00
Moon phase
Waxing Gibbous
Illumination
69%
+19°C
Weather archive — for 2020 year
Patchy rain nearby
Weather archive — for 2020 year
Nighttime: +15°C
Precipitation: 1.6 mm
Wind: 2 — 2 m/s
Humidity: 88%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +23°C | Sun hours | 4 h |
| UV index | 4 | Cloud cover (avg.) | 75% |
| Pressure (avg.) | 762 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 9 km | Sea temperature | — |
| Feels like (avg.) | +18°C | Dew point (avg.) | +16°C |
| Heat index (avg.) | +18°C | Wind chill (avg.) | +18°C |
| Wind gusts (max.) | 4 m/s | Wind direction (avg.) | 125° ↓ (S) |
Sunrise
06:23
Duration
11 h 22 min
Sunset
17:45
Moonrise
06:06
Moonset
17:23
Moon phase
New Moon
Illumination
0%
+20°C
Weather archive — for 2019 year
Clear/Sunny
Weather archive — for 2019 year
Nighttime: +13°C
Precipitation: 0 mm
Wind: 2 — 3 m/s
Humidity: 63%
| Metric | Value | Metric | Value |
|---|---|---|---|
| Day temperature (max.) | +28°C | Sun hours | 11 h |
| UV index | 6 | Cloud cover (avg.) | 11% |
| Pressure (avg.) | 762 mmHg | Snow (total for the day) | 0 cm |
| Visibility (avg.) | 10 km | Sea temperature | — |
| Feels like (avg.) | +20°C | Dew point (avg.) | +11°C |
| Heat index (avg.) | +20°C | Wind chill (avg.) | +19°C |
| Wind gusts (max.) | 6 m/s | Wind direction (avg.) | 138° ↙ (WSW) |
Sunrise
06:23
Duration
11 h 22 min
Sunset
17:45
Moonrise
20:27
Moonset
08:21
Moon phase
Waning Gibbous
Illumination
78%
Weather in Ubatuba on 18 August in previous years
| Year | Day | Nighttime | Average | Sun | UV | Humidity | Wind |
|---|---|---|---|---|---|---|---|
| 2025 |
+23°C
|
+11°C
|
+15°C | 7 h | 5 | 79% | 2 — 4 m/s |
| 2024 |
+31°C
|
+16°C
|
+22°C | 11 h | 6 | 33% | 1 — 1 m/s |
| 2023 |
+29°C
|
+16°C
|
+21°C | 11 h | 6 | 56% | 2 — 3 m/s |
| 2022 |
+30°C
|
+16°C
|
+21°C | 11 h | 6 | 54% | 3 — 5 m/s |
| 2021 |
+29°C
|
+17°C
|
+22°C | 11 h | 6 | 59% | 1 — 1 m/s |
| 2020 |
+23°C
|
+15°C
|
+19°C | 4 h | 4 | 88% | 2 — 2 m/s |
| 2019 |
+28°C
|
+13°C
|
+20°C | 11 h | 6 | 63% | 2 — 3 m/s |