October weather forecastRialma, Brazil
October
Weather in October
October, the same as September, in Rialma, Brazil, is another tropical spring month, with an average temperature fluctuating between 31.5°C (88.7°F) and 21°C (69.8°F).Temperature
The advent of October signifies a minor shift to an average high-temperature of a still hot 31.5°C (88.7°F), aligning closely with September. Throughout October, a steady low-temperature average of 21°C (69.8°F) is noted.Heat index
Throughout October, the heat index is evaluated at a fiery hot 36°C (96.8°F). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.It is crucial to understand that heat index figures are for shade and gentle wind conditions. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', provides an understanding of perceived warmth by combining temperature and relative humidity. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.
Humidity
In October, the average relative humidity in Rialma, Brazil, is 61%.Rainfall
In October, in Rialma, Brazil, the rain falls for 21.5 days. Throughout October, 156mm (6.14") of precipitation is accumulated. Throughout the year, in Rialma, there are 219.6 rainfall days, and 1537mm (60.51") of precipitation is accumulated.Daylight
In Rialma, the average length of the day in October is 12h and 27min.On the first day of October, sunrise is at 06:00 and sunset at 18:15. On the last day of the month, sunrise is at 05:42 and sunset at 18:21 -03.
Sunshine
In October, the average sunshine in Rialma is 9h.UV index
In October, the average daily maximum UV index in Rialma, Brazil, is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 6 during October translates into these guidelines:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Rialma, Brazil
- Average high temperature in October: 31.5°C
The warmest month (with the highest average high temperature) is September (33.5°C).
The month with the lowest average high temperature is January (27°C).
- Average low temperature in October: 21°C
The month with the highest average low temperature is October (21°C).
The coldest month (with the lowest average low temperature) is July (16.1°C).
Average pressure in October
Rialma, Brazil
- Average pressure in October: 1011.5mbar
The month with the highest atmospheric pressure is July (1017mbar).
The month with the lowest atmospheric pressure is November (1011mbar).
Average wind speed in October
Rialma, Brazil
- Average wind speed in October: 7km/h
The windiest month (with the highest average wind speed) is August (8.3km/h).
The calmest month (with the lowest average wind speed) is March (5.2km/h).
Average humidity in October
Rialma, Brazil
- Average humidity in October: 61%
The month with the highest relative humidity is March (88%).
The month with the lowest relative humidity is September (40%).
Average rainfall in October
Rialma, Brazil
- Average rainfall in October: 156mm
The wettest month (with the highest rainfall) is November (266mm).
The driest month (with the least rainfall) is July (1mm).
Average rainfall days in October
Rialma, Brazil
- Average rainfall days in October: 21.5 days
The months with the highest number of rainy days are January and December (29.3 days).
The month with the least rainy days is August (1.3 days).
Average daylight in October /
Average sunshine in October
Rialma, Brazil
- Average daylight in October: 12h and 30min
The month with the longest days is December (Average daylight: 13h and 0min).
The month with the shortest days is June (Average daylight: 11h and 12min).
- Average sunshine in October: 9h and 0min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).
Average sunshine days in October
Rialma, Brazil
- Average sunshine days in October: 9 days
The month with the most sunshine days is August (29 days).
The months with the least sunshine days are February and November (0.7 days).
Average UV index in October
Rialma, Brazil
- Average UV index in October: 6
The months with the highest UV index are August and September (UV index 7).
The months with the lowest UV index are February and December (UV index 5).
Average cloud cover in October
Rialma, Brazil
- Average cloud cover in October: 32
The month with the most cloud cover is December (Cloud cover 56).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility in October
Rialma, Brazil
- Average visibility in October: 9km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February and March (7km).





