"Is the weather good today?" It depends on what you're doing. 15°C and windy is terrible for a picnic but perfect for a run. 30°C and sunny is great for the beach but dangerous for hiking. There's no universal "good weather" — but there are universal rules.
📊 Universal Weather Rules (Works for Almost Everything)
If all three are true, the weather is "good" for most plans:
- ✅ Temperature: 15–28°C feels-like
- ✅ Wind: Under 20 km/h sustained
- ✅ Rain: Under 30% probability during your window
If any one fails → check the specific limits for your activity.
🧭 Decision Snapshot
Go ahead → 15–28°C, wind under 20, dry forecast, no warnings
Proceed with caution → One factor borderline — adjust plans, bring backup gear
Reschedule → Two or more factors fail OR any severe weather warning — reschedule
"Good" Weather by Activity
What counts as "good" changes dramatically based on your plans. Here's the quick reference:
- 🏖️ Beach: 25–30°C, UV 4–6, wind under 15 km/h
- 🥾 Hiking: 10–20°C, wind under 25 km/h, dry
- 📸 Photography: Clouds 30–60%, wind under 15 km/h
- 🏃 Running: 7–15°C, humidity under 60%
- 🚴 Cycling: 12–22°C, wind under 20 km/h, dry
- 🍽️ Outdoor dining: 18–28°C, wind under 15 km/h, dry
- 🎪 Events: 18–26°C, wind under 25 km/h, rain under 20%
The 3-Factor Check (Use This Every Time)
Before any outdoor plan, check these three factors in order. If any one fails, you need to adapt or reconsider.
Factor 1: Rain — Will It Rain During My Window?
- ✅ Under 20% → go with confidence
- ⚠️ 20–50% → check hourly timing, bring rain plan
- ❌ Above 50% → have a backup location or reschedule
Factor 2: Wind — Is It Manageable?
- ✅ Under 15 km/h → comfortable for everything
- ⚠️ 15–30 km/h → some activities affected
- ❌ Above 30 km/h → most outdoor plans compromised
Factor 3: Temperature — Is It Comfortable?
- ❄️ Below 5°C → cold, dress for it
- ✅ 5–28°C → comfortable range for most activities
- ⚠️ 28–35°C → hot, manage exposure
- 🔥 Above 35°C → dangerous, limit outdoor time
🧭 Continue Exploring
Related tools and guides based on what you're reading
🌧 The 'It Looks Fine' Mistake
Forecast: 20°C, partly cloudy — looks like a good day
Reality: Wind was 32 km/h (not mentioned prominently in the app). Outdoor birthday party: tablecloths flying, cake knocked over, kids' balloons gone. Party moved indoors after 45 minutes.
Score: Temperature score: 85/100. Wind score: 25/100. Overall: 45/100
💡 Good temperature ≠ good weather. Wind is the most commonly ignored factor — and the most common reason outdoor plans fail.
⚠️ Don't wait until the day before.
Stop checking 5 different numbers — one score tells you good or bad
Get your weather score in one click →When Forecasts Are Most Reliable
- ✅ 1–2 days ahead → most dependable, good time to commit
- ✅ 3 days ahead → plan with some flexibility
- ⚠️ 4–5 days ahead → tentative plans only
- ❌ 6–7 days ahead → a tendency, don't make firm decisions
Rule of thumb: Make firm plans 1–3 days ahead. Keep flexible plans for 4–7 days. Recheck the morning of your activity.
5-Second Weather Decision
- • All 3 factors pass → GOOD WEATHER — GO
- • 1 factor borderline → ADAPT (change timing or bring gear)
- • 2 factors fail → BAD WEATHER — RESCHEDULE
- • Any severe warning → CANCEL, NO EXCEPTIONS
- • Unsure? → CHECK THE SCORE — IT DOES THE MATH FOR YOU
Stop Guessing — Get a Weather Score
One number tells you if the weather is good or bad for your plans. Temperature, wind, rain, and stability — scored and explained.
Frequently Asked Questions
How do I know if the weather is good or bad?
Good weather depends on your activity. For most outdoor plans: temperature 15–28°C, wind under 20 km/h, rain probability under 30%, and no severe weather warnings. Use a weather score tool to get a single number.
What is considered bad weather?
Bad weather for outdoor activities typically means: sustained wind above 35 km/h, rain above 5mm/hr, visibility under 1 km, temperature extremes (below 0°C or above 35°C), or any active weather warning.
Is cloudy weather considered bad?
No — clouds alone don't make weather "bad." Overcast skies reduce UV risk, keep temperatures moderate, and create better photography light. Only rain, wind, and temperature extremes make weather problematic for plans.
How reliable are weather forecasts?
Forecasts become less certain the further ahead they look. 1–3 day forecasts are the most dependable, 4–7 day forecasts show tendencies, and beyond 7 days they are general guidance only. Make firm decisions using 1–3 day forecasts and flexible plans for 4–7 day windows.