![]() ![]() On the first day of the month, sunrise is at 05:59 and sunset at 17:32. DaylightIn January, the average length of the day is 11h and 36min. Throughout the year, there are 236.6 rainfall days, and 1996mm (78.58") of precipitation is accumulated. Throughout January, 8mm (0.31") of precipitation is accumulated. Rainfall In January, the rain falls for 4.2 days. HumidityThe average relative humidity in January in Santa Cruz is 70%. ![]() If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 37.5☌ (99.5☏) to 38.3☌ (100.9☏), thermal conditions are potentially life-threatening. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity. Young children are generally more endangered than adults, as they usually less sweat. Heat index values are particularly important for children. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. This effect is individual, with diverse people perceiving weather differently for numerous reasons (differences in body mass, height, and shape, clothing, metabolic differences), and activity. Note: The heat index, also known as 'felt air temperature', 'apparent temperature', 'real feel', or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees. Note that heat index values are valued for light wind and location in the shade. Sustained activity may result in heatstroke. Take extra precautions, as heat cramps and heat exhaustion are possible. Heat indexIn January, the average heat index is appraised at a very hot 38.7☌ (101.7☏). In Santa Cruz, the average low-temperature is 21☌ (69.8☏). TemperatureIn Santa Cruz, the average high-temperature in January is practically the same as in December - a tropical 31.4☌ (88.5☏). January is a hot winter month in Santa Cruz, Costa Rica, with an average temperature varying between 31.4☌ (88.5☏) and 21☌ (69.8☏). ![]()
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