Free on the App Store

SendTemps — Climbing Friction
& Crag Conditions

Friction score, rock-type dry-out timer, and send window finder for outdoor rock climbers. Stop doing the math — know exactly when temps are a send.

Download on the App Store Privacy Policy

Friction Score

Tonight’s conditions — at a glance

89
GO
Temp
48°F
Humidity
35%
Dew Gap
26°F
Wind
7 mph
Granite · Stiff rubber · Dry
Condition estimate only. Always verify rock by touch.

Features

Everything you need for send planning

📊

Friction Score

5-axis score combining temp, humidity, dew point gap, wind, and your rubber type. GO / CAUTION / STOP — no guesswork.

🪨

Rock-Type Dry-Out Timer

Sandstone needs 24–72h after rain. Granite 3–16h. The timer factors sun, wind, and humidity to give you an actual countdown. (Pro)

📍

Multi-Crag Comparison

Add up to 10 crags. Check Red River Gorge vs Rumney vs your local boulder field — all in one view. (Pro)

🕐

Send Window Finder

Scans the 24h forecast and highlights the top 3 windows where your score stays above 70 for 2+ consecutive hours. (Pro)

📅

7-Day Hourly Forecast

Full friction forecast for the week ahead. Find the best day before you plan your drive. (Pro)

🔔

Daily Send Alerts

Get notified when your home crag hits prime temps. Set a daily alert time and never miss a send-quality morning. (Pro)

Supported Rock Types

Every rock type, modeled correctly

🧱 Sandstone (24–72h dry-out) ⬛ Granite (3–16h dry-out) ⬜ Limestone (6–24h dry-out) 🟠 Conglomerate (18–60h dry-out) 💧 Dew Point Analysis 💨 Wind Evaporation Model 🥥 Soft Rubber Tuning 🔧 Stiff Rubber Tuning

How It Works

Three inputs. One number. Go or no-go.

1

Set your crag

Enter your location and rock type. SendTemps pulls live weather from Open-Meteo.

2

Set your profile

Sweat level and rubber type tune the score to your specific friction experience.

3

Check your score

GO, CAUTION, or STOP — plus the top send windows for the next 24 hours.

Stop guessing.
Know your send temps.

Free to use. Pro features $4.99/month.

Download on the App Store