Viana do Castelo
Tomorrow
Tomorrow weather in Viana do Castelo
Tuesday, 25th August 2026
23°
Light rain shower
Low 16°
The weather tomorrow in Viana do Castelo will be a bit hotter than today, with max temperatures of 22°.
It will still rain tomorrow, but less than today.
The wind tomorrow will be much lighter compared to today and reach 15 km/h.
The humidity in Viana do Castelo will continue to be high and expected to go over 85%.
23° / 16°
Temp
83%
Rain
15 km/h
Wind
85%
Humidity
Viana do Castelo Weather Pages
Viana do Castelo hourly forecast for tomorrow
Scroll right to see more weather forecasts for Viana do Castelo tomorrow
| 00:00 | 01:00 | 02:00 | 03:00 | 04:00 | 05:00 | 06:00 | 06:54 | 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | 20:00 | 20:20 | 21:00 | 22:00 | 23:00 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| weather |  | | | | |  | |  | |  | | | | | | | | |  | |  |  |  |  | | | Next |
| temperatures | 17.3° | 17.1° | 17.1° | 16.6° | 16.6° | 16.6° | 16.8° | Sunrise | 16.7° | 17.1° | 17.8° | 18.4° | 19.2° | 20.2° | 21.3° | 22.5° | 22.6° | 22.4° | 21.9° | 21.4° | 20.6° | 18.1° | Sunset | 16.5° | 16° | 16° | |
| wind speed | 6 km/h | 7 km/h | 8 km/h | 9 km/h | 8 km/h | 8 km/h | 9 km/h | 9 km/h | 10 km/h | 10 km/h | 9 km/h | 8 km/h | 8 km/h | 9 km/h | 14 km/h | 14 km/h | 15 km/h | 14 km/h | 11 km/h | 9 km/h | 8 km/h | 8 km/h | 8 km/h | 8 km/h | |||
| wind degree | 165° | 167° | 154° | 160° | 158° | 151° | 146° | 153° | 151° | 168° | 183° | 195° | 212° | 210° | 225° | 222° | 221° | 212° | 203° | 186° | 183° | 145° | 129° | 128° | |||
| wind direction | SSE | SSE | SSE | SSE | SSE | SSE | SSE | SSE | SSE | SSE | S | SSW | SSW | SSW | SW | SW | SW | SSW | SSW | S | S | SE | SE | SE | |||
| Precipitation | 0.6 mm | 0.8 mm | 0.6 mm | 0.4 mm | 0.3 mm | 0.1 mm | 0.3 mm | 0.2 mm | 0.1 mm | 0.5 mm | 0.2 mm | 0.2 mm | 0.1 mm | 0.2 mm | 0.1 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | |||
| chance for rain | 65% | 73% | 67% | 61% | 57% | 54% | 54% | 52% | 55% | 62% | 46% | 44% | 32% | 29% | 14% | 12% | 14% | 4% | 12% | 11% | 25% | 31% | 31% | 30% | |||
| chance for snow | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | |||
| humidity | 99% | 99% | 99% | 98% | 98% | 98% | 98% | 98% | 97% | 94% | 91% | 86% | 80% | 70% | 62% | 60% | 61% | 63% | 64% | 67% | 82% | 92% | 92% | 91% | |||
| dew point | 17.2° | 17° | 17° | 16.4° | 16.4° | 16.3° | 16.5° | 16.4° | 16.6° | 16.9° | 16.9° | 16.8° | 16.5° | 15.6° | 14.8° | 14.5° | 14.5° | 14.7° | 14.4° | 14.3° | 14.9° | 15.1° | 14.7° | 14.5° | |||
| visibility | 10 km | 10 km | 10 km | 10 km | 10 km | 0 km | 10 km | 10 km | 0 km | 10 km | 10 km | 10 km | 10 km | 9 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | |||
| cloud cover | 84% | 100% | 93% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 87% | 74% | 76% | 89% | 5% | 73% | 66% | 100% | 100% | 100% | 100% | |||
| UV | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.2 | 0.9 | 2 | 3.7 | 5.5 | 6.3 | 7 | 6.1 | 4.4 | 2.6 | 1.2 | 0.4 | 0 | 0 | 0 | 0 |
Weather in Viana do Castelo tomorrow
The temperature tomorrow in Viana do Castelo is expected to be typical for this time of year, with a forecast of 23 °C, closely aligning with the historical average for 25th of August.
temperatures
23 °C
rain
4.6 mm
wind
15 km/h
UV
High
Viana do Castelo Tomorrow Weather Indexes for Outdoor Activities & Health
Weather indexes for tomorrow: outdoor activities, pollen allergies, air quality (AQI), UV index and health in Viana do Castelo - Tuesday, 25th August 2026
UV Sun Exposure Risk
High
7 / 11+
Air Quality Index (AQI)
Excellent
10 / 10
Pollen Allergy Risk
Very High
10 / 10
Asthma Risk Index
Low
4 / 10
Arthritis Pain Index
Low
3 / 10
Outdoor Activity Index
Good
7 / 10
Running & Jogging Index
Good
6 / 10
Cycling Weather Index
Good
6 / 10
Beach & Swimming Conditions
Fair
5 / 10
Pet Walking Index
Excellent
9 / 10
Fishing Conditions Index
Excellent
10 / 10
Gardening Weather Index
Excellent
10 / 10
Photography Light Index
Excellent
8 / 10
Driving & Road Safety
Good
7 / 10
Construction Work Index
Excellent
8 / 10
Viana do Castelo daylight overview ☀️
Tomorrow in Viana do Castelo, The sun rises at 06:54 and sets at 20:20, giving a total daylight duration of 13 hours and 26 minutes.
Quick links
More Viana do Castelo weather pages
What to wear tomorrow in Viana do Castelo? clothing recommendations
Stay comfortably stylish - your tailored guide for tomorrow's Viana do Castelo forecast.
Long-sleeve shirt
Long pant
Closed-toe shoes
Light jacket
Umbrella
The weather tomorrow in Viana do Castelo - FAQ
What is the maximum temperature for tomorrow in Viana do Castelo?
The maximum temperature for tomorrow in Viana do Castelo is expected to be 23° degrees. Please dress accordingly to stay comfortable throughout the day.
Will it rain tomorrow in Viana do Castelo? 🌧️
Yes, there is a 83% chance of rain in Viana do Castelo tomorrow. We recommend carrying an umbrella or rain gear to stay dry.
What will be the wind speed tomorrow in Viana do Castelo? 🌀
The wind in Viana do Castelo is expected to blow at 15 km/h. This could affect outdoor activities, so plan accordingly.
How should I dress for the weather in Viana do Castelo tomorrow?
Given the forecast of 23 °C with a 83% chance of rain, we advise checking our "What to wear tomorrow" section for recommendations. There, you will find tailored advice to help you stay comfortable and prepared for the weather conditions in Viana do Castelo tomorrow.
What is the sunrise and sunset time for Viana do Castelo tomorrow?
The sun is expected to rise at 06:54 and set at 20:20 in Viana do Castelo.
How accurate is the weather forecast Viana do Castelo tomorrow? ✅
Viana do Castelo weather forecast for tomorrow is based on the most current and sophisticated meteorological models available. While we strive for accuracy, weather conditions can change unexpectedly, so we recommend checking for updates regularly.
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Where is Viana do Castelo?Get accurate weather forecasts for Viana do Castelo, located at latitude 41.693 and longitude -8.833. Stay updated with localized weather information tailored for Viana do Castelo.
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