# Oloirien Ward, Ngorongoro District, Arusha Region – Villages > Source: https://wherepedia.org/tanzania/arusha/ngorongoro/oloirien/ Ward · Ngorongoro District # Oloirien Oloirien is a ward of Tanzania in Ngorongoro District, Arusha Region. It covers **262.2 km²**. 5 named villages and localities are recorded here, and 8 mapped services such as hospitals, banks and schools. - 262km² - 8mapped services - 1,997 mtypical elevation ## Where is Oloirien? Oloirien lies in [Ngorongoro District](https://wherepedia.org/tanzania/arusha/ngorongoro/), [Arusha Region](https://wherepedia.org/tanzania/arusha/), [Tanzania](https://wherepedia.org/tanzania/). It borders 6 other wards: [Digodigo](https://wherepedia.org/tanzania/arusha/ngorongoro/digodigo/), [Engusero Sambu](https://wherepedia.org/tanzania/arusha/ngorongoro/engusero-sambu/), [Maalon](https://wherepedia.org/tanzania/arusha/ngorongoro/maalon/), [Oloipiri](https://wherepedia.org/tanzania/arusha/ngorongoro/oloipiri/), [Orgosorok](https://wherepedia.org/tanzania/arusha/ngorongoro/orgosorok/) and [Samunge](https://wherepedia.org/tanzania/arusha/ngorongoro/samunge/). By area it is the 763rd largest of 3,643 wards in Tanzania. It covers 1.6% of [Ngorongoro District](https://wherepedia.org/tanzania/arusha/ngorongoro/). The centre of Oloirien is about 453 km in a straight line from Dodoma, the capital. The centre point is at 2.0995° S, 35.5727° E. Source: [Tanzania National Bureau of Statistics / UN OCHA ROSA via OCHA HDX, administrative boundaries (COD-AB, CC BY-IGO)](https://data.humdata.org/dataset/cod-ab-tza). ## Things to see in and around Oloirien ### Nearby, outside Oloirien - Enguserosambu Nature Reserve · nature reserve, Engusero Sambu15 km - Loliondo Game Controlled Area · nature reserve, Maalon15 km Source: [© OpenStreetMap contributors (ODbL), Geofabrik extract — named settlements](https://www.openstreetmap.org/copyright). Named attractions, museums, viewpoints, historic sites and natural features mapped in OpenStreetMap. Places of worship are not listed. ## Know before you go: Oloirien - Time zoneUTC+3, no daylight saving · Africa/Dar_es_Salaam - CurrencyShilling (TZS) - Country calling code+255 - LanguagesSwahili, English, Arabic - Plug typesType G · 230 V - Driving sideLeft - Postcode format5 digits (#####) ### Nearest airports - Seronera Airport (SEU) · Seronera92 km - Mara Serena Lodge Airstrip (MRE) · Serena100 km ### Daylight Days are longest in Dec (about 12.2 hours, sunrise around 06:25) and shortest in Jun (about 12.0 hours, sunrise around 06:37, sunset around 18:37). Source: [GeoNames country and time-zone files (CC BY 4.0)](https://www.geonames.org/); [Wikidata (CC0) — plug types, mains voltage, driving side; retrieved 2026-11-03](https://www.wikidata.org/); [OurAirports (public domain)](https://ourairports.com/data/). Airports with scheduled passenger flights; straight-line distances. Daylight is calculated for the 15th of each month in local standard time. Check entry and visa rules with official government sources before travelling. ## Villages and localities in Oloirien Open gazetteers list **5 villages, towns and localities** in Oloirien. - Lopolun - Losooito - Oldonyowas - Oloirien - Wasso Source: [GeoNames (CC BY 4.0) — settlements, natural and historic features](https://www.geonames.org/); [© OpenStreetMap contributors (ODbL), Geofabrik extract — named settlements](https://www.openstreetmap.org/copyright). ## Landscape and landmarks of Oloirien Named natural and historic features inside Oloirien, from the GeoNames gazetteer. ### Forests and nature 1 forest reserve. - Loliondo Forest Reserve ### Getting around 1 airfield. - Loliondo Source: [GeoNames (CC BY 4.0) — settlements, natural and historic features](https://www.geonames.org/). Places of worship are not listed. Elevations are from the GeoNames terrain model and are approximate. ## Weather in Oloirien and the best time to visit Using the climate of Ngorongoro District, the warmest month is Oct (average 21 °C) and the coolest is Jun (17 °C), after allowing for this place being about 314 m higher than the climate reference point (about 6.5 °C per 1,000 m). About 721 mm of rain falls in a year; the wettest month is Apr (127 mm) and the driest Jul (5 mm). The most comfortable months for a visit are **May to March**. - Jan - Feb - Mar - Apr - May - Jun - Jul - Aug - Sep - Oct - Nov - Dec Month Average °C Rain mm Jan 20 78 Feb 20 55 Mar 20 106 Apr 19 127 May 18 67 Jun 17 12 Jul 17 5 Aug 19 11 Sep 20 16 Oct 21 49 Nov 20 102 Dec 20 94 Source: [NASA POWER climatology, retrieved 2026-10-29](https://power.larc.nasa.gov/). ## Nearest hospital, bank and fuel from Oloirien Need Nearest mapped Distance Hospital Wasso Hospital · Oloirien 3.9 km [Map](https://www.openstreetmap.org/?mlat=-2.06548&mlon=35.56345#map=17/-2.06548/35.56345) Hotel Guesthouse · Oloirien 4.2 km [Map](https://www.openstreetmap.org/?mlat=-2.06701&mlon=35.55303#map=17/-2.06701/35.55303) School Lemishiri Primary School · Oloirien 3.5 km [Map](https://www.openstreetmap.org/?mlat=-2.12993&mlon=35.57861#map=17/-2.12993/35.57861) Source: [Overture Maps places (CDLA-Permissive-2.0) and © OpenStreetMap contributors (ODbL)](https://overturemaps.org/). Straight-line distance from the centre of the division, within 40 km. ## Hospitals, banks and other services in Oloirien Places mapped inside Oloirien in open map data, by type. - Hospitals1 - Hotels2 - Schools5 Source: [Overture Maps places (CDLA-Permissive-2.0) and © OpenStreetMap contributors (ODbL)](https://overturemaps.org/). Coverage depends on what has been mapped; contact details are not shown. ## Other wards in Ngorongoro District - Alailelai - Arash - Digodigo - Endulen - Engusero Sambu - Kakesio - Maalon - Malambo - Nainokanoka - Naiyobi - Ngorongoro - Olbalbal - Oldonyo Sambu - Oloipiri - Ololosokwan - Orgosorok - Pinyinyi - Sale - Samunge - Soitsambu ## Quick answers - Where is Oloirien?In Ngorongoro District, Arusha Region, Tanzania - What borders Oloirien?Digodigo, Engusero Sambu, Maalon, Oloipiri, Orgosorok and Samunge - What is there to see in Oloirien?Enguserosambu Nature Reserve, Loliondo Game Controlled Area - What time zone is Oloirien in?UTC+3 - What currency is used in Oloirien?Shilling (TZS) - What language is spoken in Oloirien?Swahili, English, Arabic (main languages nationally) - How many villages are in Oloirien?5 named settlements (GeoNames, OpenStreetMap) - What is the best time to visit Oloirien?May to March - Where is the nearest hospital to Oloirien?Wasso Hospital, about 3.9 km from the centre - How many hospitals are in Oloirien?1 mapped - What is the P-code of Oloirien?TZ0205161 (OCHA common operational dataset)