Rain

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Rain is a major weather hazard in tennis and play is often stopped due to it. One can only play for a short time that too only if it is light rain. Rain makes the surface wet and slippery. In recent years, major tournaments have started to roof the courts when it rains. Moveable roofs are very expensive to install hence this practice is still not very popular. Playing in rain can cause major injuries to players as the probability of slipping is high and is not advisable as well. A wet tennis ball is also heavier than a dry one, resulting in slowing down of play and hindering players' abilities to put a spin on the ball. Following are the effects of rain on different surfaces:

Hard Courts

hard courts are playable with lights rain but as soon as puddles are created on the court, the game has to be stopped. There is a high chance of injury playing on wet hard courts so caution should be practiced.

Clay Courts

Clay courts are the best surface to play with rain. As clay courts are maintained with water, the effect of rain is the least on this surface. But when it rains heavily, clay can change to mud which is hazardous.

Grass Courts 

Grass courts are the worst surface to play on when it rains. Any form of moisture can make the surface slippery and it is not advisable to play on grass courts when it's raining

Wind

Windy conditions are often unfavorable during the sport of tennis and can be considered a weather hazard. As tennis balls are light and pressurized, they often swing in the air if it is windy making it very hard to play.

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Wind results in the ball going in directions that are not intended resulting in players playing safe and not going for the lines. Footwork is affected the most when the conditions are windy. One needs to take a lot of small steps when it's windy and adjust quickly to the swinging ball. Players who generally take large steps can be caught off guard and result in injuries. 

Extremely High and Low temperatures

As tennis is a physically intensive sport, temperatures have a huge impact on it. Tennis matches can typically last for hours and exposure to extreme temperatures for such a long time can have negative effects on our bodies. Heat can cause dehydration and also cause heatstrokes whereas in very cold temperatures our bodies can freeze and make our reaction time slow. In recent times, players have called for making rules for extreme temperatures. Matches in Tokyo Olympics were moved due to extreme heat as well.

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Apart from the hazards of extreme temperatures on our bodies, extreme temperatures also affect the quality of the match. Heat can make the tension of strings lower and make them loose. High temperatures make the ball bouncier whereas cold temperatures make the ball bounce less and cause difficulties to the players.