Baking Sourdough in Different Climates and Seasons

Climate and seasonal changes profoundly affect sourdough fermentation. Bakers in hot, humid environments face different challenges than those in cold, dry kitchens. Adapting your process to your environment produces consistent results year-round.

Hot Climate Baking

In kitchens above 80°F, fermentation happens fast — sometimes dangerously fast. Your bulk fermentation may take 3 hours instead of 5. Watch your dough closely and shape earlier than a recipe suggests. Over-fermentation is the constant threat.

Use cold water (even ice water) in your dough to bring the initial dough temperature down. Refrigerating your starter between feedings prevents it from becoming overly acidic. Consider bulk fermenting entirely in the refrigerator during heat waves.

Cold Climate Baking

In kitchens below 68°F, fermentation crawls. Bulk may take 8-12 hours. This is not a problem — it just requires patience and adjusted timelines. The silver lining is that slow fermentation often produces more complex, nuanced flavors.

Create a warm spot for your dough using the oven with just the light on, a proofing box, or a cooler with a jar of warm water. Maintaining a consistent temperature is more important than hitting an exact number.

Humidity Considerations

In humid environments, flour absorbs moisture from the air, effectively increasing your dough hydration. You may need to reduce water by 5-10g compared to a recipe developed in a dry climate. Judge by feel — the dough should be tacky but manageable.

Dry climates cause dough surfaces to dry out faster during proofing. Cover your dough more carefully during bulk and proof. A light mist of water on the surface before covering helps prevent skin formation.

Seasonal Adjustments

Summer to winter shifts can change your bulk fermentation time by 2-4 hours. Rather than fighting the seasons, adapt your schedule. Summer baking works on tighter timelines with cold retards. Winter baking allows leisurely room temperature fermentation.

Your starter responds to seasons too. It peaks faster in summer and slower in winter. Adjust feeding ratios accordingly — higher ratios (1:5:5 to 1:10:10) in summer to slow it down, lower ratios (1:2:2 to 1:3:3) in winter to keep it active.

Where to Go From Here

The techniques and knowledge shared here build the foundation for consistent, rewarding results. Whether you are just starting out or refining your craft, focusing on fundamentals always pays dividends.

Start with what interests you most, practice deliberately, and do not be afraid to experiment. Every batch teaches you something new, and the journey of improvement is what makes this pursuit so engaging.