Month by month
| Month | Afternoon | Sea | Rain | Verdict |
|---|---|---|---|---|
| January | 21.1 °C | — | 2 days | Pleasant — a good time to go |
| February | 23.5 °C | — | 2 days | Pleasant — a good time to go |
| March | 28.5 °C | — | 3 days | Ideal — one of the best times of year |
| April | 32.9 °C | — | 3 days | Ideal — one of the best times of year |
| May | 38.7 °C | — | 1 day | Possible, with trade-offs |
| June | 42.4 °C | — | 0 day | Possible, with trade-offs |
| July | 43.5 °C | — | 0 day | Possible, with trade-offs |
| August | 43 °C | — | 0 day | Possible, with trade-offs |
| September | 40.3 °C | — | 0 day | Possible, with trade-offs |
| October | 34.7 °C | — | 0 day | Pleasant — a good time to go |
| November | 27.4 °C | — | 2 days | Ideal — one of the best times of year |
| December | 22.2 °C | — | 2 days | Pleasant — a good time to go |
Nearby in September
Before you go
Three things to check once you have picked your dates.
Entry
E-visa to apply for online before departure for stays of up to 90 days. Passport valid for at least 6 months. Tourist e-visa (90 days in total over 365) applied online, also obtainable on arrival at international airports; ETA and visa waiver are alternatives.
For a British passport, per the UK Foreign Office on 25 July 2026. Rules change: check before booking.
Safety
Outside the areas advised against
Parts of the country are advised against (within 80 km of the Yemeni border (incl. Jizan)); Riyadh is not one of them.
Official advice updated 25 July 2026
Health
Vaccines · typhoid recommended for most travellers; hepatitis A and hepatitis B if you are not already vaccinated; meningococcal disease depending on activities and areas visited. Routine vaccines up to date (measles in particular).
Yellow fever · No yellow fever locally, vaccine not recommended. Certificate required only if you arrive from a country with yellow fever risk.
Malaria · Present. Areas: Asir and Jazan (also spelled Jizan) Regions near the Yemen border only No malaria transmission in the cities of Jeddah, Mecca, Medina, Riyadh (the capital), or Ta’if. Preventive medication recommended: Atovaquone-proguanil, doxycycline, mefloquine, tafenoquine — prescribed before departure.
Mosquitoes · dengue reported: protect yourself from bites.
Per the CDC (page reviewed 25 August 2026); see a travel clinic a few weeks before departure.
Beau Fixe is not a safety or health authority. These notes summarise dated public texts and link to their source: France Diplomatie (Licence Ouverte 2.0), Foreign, Commonwealth & Development Office (gov.uk, Open Government Licence v3.0), Centers for Disease Control and Prevention (Source: CDC). Only the competent authorities are authoritative.
FAQ
Can you swim in Riyadh in September?
Riyadh is not a seaside destination (no sea data).
How hot is Riyadh in September?
Expect 40.3°C in the afternoon and 26°C at night, averaged over the last 10 years.
Does it rain a lot in Riyadh in September?
Around 0 days with rain (≥ 1 mm) in the month — 0% of days.