Relative humidity can be a strange thing. Locations can feel more humid than others even when they are not.
Countries in far eastern Asia such as Thailand, Singapore and Malaysia can often feel very humid. There is a definite feeling of moisture in the air. Particularly, just after it has rained. One would assume that this part of the world experiences the highest levels of humidity on the planet. Interestingly this is not the case.
When compared to relative humidity in UK, Singapore experiences a lower level.
Take a look at the data from the last week in August 2019 and see the differences between relative humidity in the UK, UAE and Singapore.