Hypothyroidism caused by Hashimoto's thyroiditis is treated with thyroid hormone replacement agents such as levothyroxine, triiodothyronine or desiccated thyroid extract. A tablet taken once a day generally keeps the thyroid hormone levels normal.
September deserves to be a more popular time to visit Iceland. Though youâll miss out on seeing the sun high in the sky well past 10pm (sunset is around 7:30pm and the sun rises around 6:30am), temperatures are still quite nice, with average temps between 10.1Â°C (50 Â°F) and 5Â°C (41 Â°F) throughout the month, and prices are lower and crowds are fewer.
1 Overnight temperatures are generally warm with an average low of 20.5 Â°C (68.9 Â°F). 2  The variation/ range of daily mean temperatures in September is 7.8 Â°C (14 Â°F).  The weather in September is arid with scarcely any rain. A feeble 7.1mm (0.3in) of fluid is dropped across an average of 2 days.