Rain and wind go/no-go helper
The calculator needs JavaScript. The worked example, sum and figures below show exactly how it works, so you can do it yourself. A guide, not advice.
Short answer
Enter the forecast peak wind and, if available, the limit stated by your tent maker. Select the rain outlook and whether you checked an official warning. The result is a prompt to reassess, not a safety guarantee. Follow official warnings, the tent maker and campsite instructions.
Worked example
| You enter | Value |
|---|---|
| Forecast peak wind speed | 25 km/h |
| Tent maker's stated wind limit | 45 km/h |
| Rain forecast | showers |
| Official weather warning for the location | No warning found |
Entered figures are below the maker's limit and no warning was reported; this is not a go-ahead or safety guarantee.
| Result | Value |
|---|---|
| Weather planning check | Entered figures are below the maker's limit and no warning was reported; this is not a go-ahead or safety guarantee. |
Next steps
- Check the latest Met Office warning for the exact location and time
- Check the tent maker's guidance and campsite status
- Consider ground, exposure, flooding and your group's experience
Show the working
- Forecast wind 25 km/h compared with maker limit 45 km/h
- Rain: showers; official warning: no
How it works
- Compare forecast peak wind with the tent maker's stated limit, if provided
- Check official weather warnings and local flood information
- Follow campsite instructions and reassess if conditions change
This is a prompt, not a safety guarantee. Forecasts, ground and shelter exposure vary; follow official warnings, the tent maker and campsite advice.
Our figures (adjustable)
These are our planning allowances and, once checked, typical figures with their sources. They aren't facts about your kit: change any of them in the calculator.
This calculator has no built-in defaults: every figure comes from you or your kit's own label.
What to buy
Shopping links will appear here once our retailer partners are confirmed. We don't rank kit by testing it: see our spec-based kit guides.
FAQs
Is there one wind speed at which every tent becomes unsafe?
No. Tent designs, condition, pitching, ground and exposure differ. Follow the maker's guidance and official warnings.
Does this tool check the live forecast?
No. Enter current information from a reliable forecast and check again before travel.
Guides that use it
Camping in a heatwave
Camping in a heatwave: plan shade, water, cool food and an early exit, and check official weather advice before you travel.
Camping in the rain
Camping in the rain: check the forecast, pack waterproof layers, pitch on higher ground and know when to postpone or leave.