How GoodDayTo judges outdoor tennis weather
Tennis is particularly sensitive to rain and wind. A court can become unusable after a shower, while even moderate wind can affect serves, ball tosses and shot timing. GoodDayTo therefore looks at precipitation probability, forecast rain, wind, gust variation, apparent temperature, humidity and UV together rather than relying on a simple “dry or wet” label.
- Rain probability
- Forecast precipitation
- Sustained wind
- Wind gusts
- Humidity
- Temperature
- UV
- Nearby court context
🎾 A dry forecast does not always mean a dry court
- If rain stopped recently, the playing surface may still need time to dry.
- Wind can matter more for tennis than it does for a casual walk or picnic.
- nearby place check can confirm that mapped courts exist nearby, but not whether they are open or bookable.
Why wind is a major part of the tennis score
Wind changes the way the ball travels and can make serving much harder because the toss is exposed. A light breeze is often manageable, but stronger or highly variable wind can turn an otherwise comfortable hour into a frustrating session. GoodDayTo therefore applies increasing penalties as sustained wind rises and adds another deduction when gusts become much stronger than the average wind.
A WAIT result can be useful because a passing shower or gusty period may clear within a few hours. The app compares upcoming multi-hour windows so a better playing slot later in the day can surface automatically.
What the tennis score cannot know
GoodDayTo cannot see whether the court surface is still wet, whether leaves or debris are present, whether the venue is open, whether a court is reserved, or whether floodlights are available. It also does not know whether you are playing on clay, grass, acrylic or another surface, all of which can react differently to recent weather.
Outdoor tennis commonly works from morning through early evening. GoodDayTo allows evening play but does not assume a floodlit court is available after dark, so after-dark scores are capped rather than treated as ideal by default.
What the score means
GO means the forecast looks favourable for outdoor tennis. WAIT means rain, wind, temperature or timing is mixed and a better window may be nearby. NOT TODAY means weather or severe conditions make outdoor tennis a poor fit for the upcoming period.
Frequently asked questions
What weather does the tennis score prefer?
Comfortable temperature, low rain risk, lighter wind and manageable humidity are generally favourable for outdoor tennis.
Can the score tell whether the court is dry?
No. GoodDayTo can see current and upcoming rain signals, but it cannot see puddles, condensation or how quickly a particular court surface dries after rain.
Why does wind reduce the tennis score?
Wind can change ball flight and serving consistency. Stronger or gustier conditions therefore reduce the score even if the court is dry.
Does GoodDayTo check for tennis courts nearby?
Yes. The nearby-place check can look for mapped tennis courts and sports centres. It cannot confirm bookings, opening hours, court condition or whether floodlights are available.
Can a GO result guarantee good playing conditions?
No. GO means the weather factors used by GoodDayTo look favourable. Court surface, bookings, lighting, local rules and player comfort remain separate considerations.