Weather Impact Calculator
Estimate weather-related delays based on location and project duration. Calculate recommended contingency days for weather-sensitive activities.
Enter weather conditions to assess construction impact
REFERENCE INFORMATION
This tool provides standard reference data compiled from industry sources.
Note:
• Data is provided for quick reference and may not reflect the most current standards or specifications.
About This Calculator
The Weather Impact Calculator helps planners and project managers estimate weather-related delays for construction projects across the UAE and Gulf. Calculate recommended contingency days based on location, project duration, and weather-sensitive activities. Essential for realistic scheduling, tender contingency planning, and Extension of Time (EOT) claim substantiation in the Gulf's extreme summer climate.
When to Use This Calculator
- Planning project schedules with realistic weather contingency
- Preparing baseline programs that account for summer restrictions
- Calculating contingency days for tender submissions
- Substantiating Extension of Time claims for weather delays
- Identifying weather-sensitive activities for risk planning
How to Use This Calculator
Select Project Location
Choose emirate/region to apply correct weather data (coastal vs inland, UAE vs Saudi).
Enter Project Duration
Input project start date and duration to calculate exposure to each season.
Identify Weather-Sensitive Activities
Select activities affected by weather: concrete pours, waterproofing, external painting, crane operations.
Set Temperature Thresholds
Define cut-off temperature for activities (typically 45°C per UAE labor law).
Review Contingency Analysis
Get recommended contingency days by month and total weather impact assessment.
Typical Scenarios in UAE & Gulf Projects
Contractor plans basement concrete pour schedule for 18-month project starting in March. Calculator identifies June-September as high-impact months, recommending 30% productivity reduction for concrete activities and 15 contingency days for the summer period.
Cladding subcontractor schedules aluminum curtain wall installation on high-rise tower. Tool flags wind restrictions (>35 km/h for crane lifts) and extreme heat periods, recommending early morning shifts during summer and 8 weather contingency days.
Frequently Asked Questions
Take Your Calculations Further
This calculator reflects the logic built into Arkan's construction management platform.
Last Updated: January 2026
Standards Reference: UAE Ministry of Human Resources Summer Work Regulations, FIDIC Sub-Clause 8.5 Weather Delays