A beehive is not a building. It is a living system engaged in constant negotiation with its environment. Sun warms it. Wind cools it. Water sustains it. Each of these forces shapes the colony's success or failure in ways both obvious and subtle.
Understanding how sun, wind, and water affect your bees — and how to work with these forces rather than against them — is fundamental to good beekeeping. Let us examine each in turn.
Bees are solar-powered creatures. When the sun rises, so do they. Morning sunlight hitting the hive entrance triggers activity — guard bees take their posts, foragers head out, the colony wakes.
Morning sun is your friend. A hive that catches the first rays of dawn will start foraging earlier than a shaded hive. Earlier foraging means more trips per day. More trips mean more nectar and pollen. In a competitive forage environment (lots of hives, limited flowers), this edge matters.
In northern climates, maximize sun exposure. The extra warmth extends the active season and helps the colony build strength before winter.
In southern climates — particularly the desert Southwest or humid Southeast — afternoon shade becomes critical. A hive in full sun when temperatures hit 95°F or higher forces the bees into air-conditioning mode. They cluster at the entrance, fanning furiously. They haul water back to the hive and spread it on the comb, then fan to evaporate it (swamp cooling, essentially). This works, but it is expensive. Every bee fanning is a bee not foraging.
The solution? Afternoon shade from a tree, building, or tarp. Dappled shade is ideal — enough to reduce heat but not so much that you lose all solar gain.
If you live in Phoenix or Houston, additional measures may be needed:
Paint hives white or light colors. White reflects solar radiation. Dark hives absorb it. A black hive in desert sun can become dangerously hot.
Provide ventilation. A screened bottom board allows air to flow up through the hive, carrying heat away. Some beekeepers also prop the outer cover up slightly (a small stick under one corner) to create an upper vent.
Elevate hives higher. Get air flowing beneath. A hive sitting directly on a sun-baked surface absorbs heat from below.
Ensure water is nearby. (More on this below.) Bees need water for cooling. If they must fly far to fetch it, they cannot keep up with cooling demand.
Wind is easy to underestimate until you watch your bees struggle against it.
A worker bee can fly in winds up to about fifteen miles per hour. Above that, she is grounded. Even at lower speeds, wind slows her down and tires her out. A bee fighting a headwind burns more energy and makes fewer trips.
Worse, wind cools the hive. The bees work hard to maintain 93°F in the brood nest. Cold wind drafting through cracks forces them to burn more honey to generate heat. In winter, this can mean the difference between survival and starvation.
Windbreaks are essential in exposed locations. A solid fence, a row of evergreen shrubs, or even a stack of hay bales on the windward side reduces wind speed dramatically. The windbreak need not be tall — even a four-foot barrier helps. The goal is to disrupt the wind, forcing it up and over the hive rather than straight through.
Orient hive entrances away from prevailing winds. In most of North America, prevailing winds are westerly or northwesterly. Face your entrance south or east.
Cold air is denser than warm air. On still, clear nights, cold air flows downhill like water, pooling in low-lying areas. These "frost pockets" can be several degrees colder than surrounding ground.
A hive in a frost pocket faces late frosts in spring (which can kill early forage and delay the nectar flow) and early frosts in fall (which shorten the active season). Avoid valleys, depressions, and the bases of slopes if possible.
If your only option is a low spot, consider the trade-offs. The site may be sheltered from wind (good), but colder on average (bad). In mild climates, this may not matter. In cold climates, it could doom the hive.
Bees need water. Lots of it. They use it to dilute honey when feeding larvae, to cool the hive on hot days, and simply to drink. A strong colony in summer can consume a liter of water per day.
If you do not provide water, the bees will find it elsewhere — your neighbor's pool, a leaky faucet, a birdbath, a puddle. This creates two problems: neighbors annoyed by bees clustering at their water source, and bees flying long distances (and expending energy) to fetch water.
The solution is simple: provide a water source near the hive.
A shallow dish or birdbath works, but bees drown easily. Add floating corks, wine corks, marbles, or stones so they have a place to land. Refill daily — bees prefer fresh water.
Interestingly, bees often prefer slightly dirty water to clean water. A dish with algae or a bit of soil seems more attractive than sterile water. No one knows quite why. Minerals, perhaps. Or simply that it smells more natural.
Place your water source before installing the bees. Bees establish foraging patterns quickly. If they start flying to the neighbor's pool before you set out water, they will keep flying to the pool even after you provide a closer source. Early establishment is key.
Remember that sun angles change with the seasons. A site in dappled shade in June may be in full shade in December when the sun is lower. A site sheltered from summer breezes may be exposed to winter gales after deciduous trees lose their leaves.
Visit your site across different seasons before committing. Observe. Imagine the hive there in March, in July, in November. How does the light fall? Where does the wind come from?
The best sites work year-round. Compromise sites work well in some seasons and poorly in others. Choose accordingly.
"The bees will tell you if the site is wrong — but only after you have installed them. Better to listen to the wind and watch the sun before the bees arrive."
— From The Thoughtful Beekeeper's Guide